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Basics & Theory

ACI: Bindley Home Carbon Neutral Renovation
Affordable Comfort program Thousand-Home Challenge is a movement that dares designers and contractors to turn an old existing home into a showcase zero-energy dwelling. Here's one of the first case studies, a total retrofit of a 1970s ranch house in New Hampshite. (PDF)

BC Hydro: Tips On Energy Efficient Homes & Products
BC Hydro gives tips on lighting, appliances, home office, water heating, thermostats, ducts, heating, air conditioning, and structural.

Building America Solution Center: Building Science-To-Sales Translator
Building America Solution Center online Building Science-to-Sales Translator provides a new glossary of sales themes that can be used across the industry to consistently reinforce the value of high-performance homes.

Building Science: Case Studies Of Deep Energy Retrofits
Building Science online slide show describes case studies of deep energy retrofits for existing single family homes. (PDF)

Building Science: Deep Energy Retrofit Of 1915 Sears Roebuck House
Building Science describes 1915 Sears house renovations that used systems engineering principles to ensure good indoor air quality and longterm durability while providing deep energy reductions.

Building Science: Deep Energy Retrofit Of Three-Family Triple Decker
Building Science describes a comprehensive energy efficiency update of a 1907 triple decker, 3,885 ft2 above-grade living space, 3-family residence with conditioned basement. Estimated annual energy savings are projected at 48% energy use reduction compared to the pre-retrofit conditions.

Building Science: Deep Energy Retrofit Of Three-Story Victorian House
Building Science describes a Victorian house retrofit that included new fiber cement siding installed over exterior insulation, new high performance windows, a conditioned basement, improved insulation at the attic and roof, and improved air tightness.

Building Science: National Grid Deep Energy Retrofit Pilot Project
Building Science describes a pilot project intended to demonstrate Deep Energy Retrofits in existing Massachusetts homes. The pilot program provides financial incentives and technical support to projects that commit to achieving significant energy reduction and successfully complete a long application process.

Building Science: Performance Of 42-Home Deep Energy Retrofit Pilot Community Project
Building Science report Performance Results for Massachusetts & Rhode Island Deep Energy Retrofit (DER) Pilot Community summarizes a DER pilot program of 42 projects. The required aggressive upgrades to building enclosure systems, implementation of ventilation and combustion safety measures and also provided incentives to upgrade mechanical systems. Post retrofit energy use data is analyzed with the objective of learning what post-retrofit energy performance one can expect from implementation of the retrofit package. (PDF)

Efficiency First: Glossary Of Terms For Home Performance Industry
Efficiency First provides definitions of terms and phrases used in the home performance industry, including BPI certifications and accreditations, government programs and business terminology.

Energy Vanguard: 107 Acronyms & Initials For Home Energy Pros
Energy Vanguard describes 107 acronyms and initials used in the home performance industry.

Energy Vanguard: 2 Decades Of Home Energy Data
Energy Vanguard describes how Danny Orlando has been steadily improving the energy efficiency of his home over the past couple of decades and monitoring his energy use data.

Energy Vanguard: Stockton Project Demonstrates Huge Home Energy Savings
Energy vanguard says retrofits done on these homes to reduce their energy consumption were standard retrofits that many homes need: air-sealing, duct-sealing, improving duct air flow, adding insulation, and replacing crappy windows. None of the retrofits went through the expensive deep energy retrofit process of having their walls completely stripped and rebuilt. None of them had exterior insulation added to the walls. None of them got spray foam insulation in the attic. Yet they're saving boatloads of energy. The three older houses are now using about a quarter of the energy they formerly used for heating and cooling.

Energy Vanguard: What Is Home Performance?
Energy Vanguard helps you understand what the term home performance really means.

FortisBC: Brochures & Links On Saving Energy
FortisBC provides information to help you increase your home's energy efficiency - saving energy and money, as well as links to other websites with useful information abut energy efficiency.

GBA: Leaky Old House Becomes Net-Zero Showcase
Green Building Advisor describes how renovators wrapped a 1970s ranch house with a new SIP shell to turn it into a net-zero-energy house.

GBA: Superinsulation Retrofit Of 80-Year Old Duplex
Green Building Advisor article describes a retrofit of an 80-year-old duplex that ultimately evolved into part of an ambitious superinsulation pilot program for the Massachusetts Department of Energy Resources.

GBA: What Is A Deep Energy Retrofit?
Green Building Advisor podcast describes a deep energy retrofit, which is a remodel that aims to cut energy use by at least 50%.

HGTV Remodels: Deep Energy Retrofit Of 70 Year Old Cape Cod
HGTV Remodels describes how a homeowner Wilson performs a Deep Energy Retrofit on his 70-year old Cape Cod house with the goal of making it energy neutral by producing as much energy as it uses.

Home Energy Magazine: Myths About Energy & Energy Savings
Home Energy Magazine gives insight into some common myths concerning energy and energy savings.

Home Energy: Legends of Home Performance Industry
Home Energy online videos feature interviews with some of the legends of the home performance industry.

Home Revival: US Demonstration Home With Energy Efficient Retrofits
US Building Performance Institute and Affordable Comfort Home Performance Conference sponsored Home Revival, a national demonstration retrofit project in Pittsburgh. The renovation project features system solutions that could work in the tens of millions of older homes across the country that need home performance upgrades.

Minnesota: A Look At Understanding Home Energy
Minnesota Building Performance Association online video Understanding Home Energy explains features and benefits of home performance.

Now House: Project Converting Older Houses To Net Zero Energy Homes
Now House, a project put forward by the who is who of the Toronto sustainable housing community to discover the best ways to reduce the energy use of existing older houses into net zero energy homes – homes that produce as much energy as they use on an annual basis. Just like a typical city house, a Now House is connected to and uses energy from the local utility. However, unlike typical homes, a Now House produces energy to send to the utility company. Annually, zero energy homes produce enough energy to offset the amount purchased from the utility provider, resulting in a net zero energy bill.

NRCan: EnerGuide Housing Glossary Of Terms
NRCan online encyclopedia that explains terms and definitions used in home energy efficiency and energy performance.

NRCan: Glossary Of Energy Efficiency Terms
Natural Resources Canada glossary of terms and abbreviations describe energy use, energy efficiency, and greenhouse gas emissions in the residential, commercial, and industrial sectors

Remodeling: Defining Home Performance
Remodeling magazine says the core of home performance is understanding that the home is a system where everything is interdependent.

Remodeling: What You Need To Know About Home Performance
Remodeling magazine online videos offer insights on home performance, providing customers with a healthy, energy-efficient home.

US DOE: Consumer Guide To Home Energy Upgrades
US Department of Energy outlines the process for making your home more comfortable through energy upgrades and highlights the importance of choosing certified home energy professionals to do the work.
Education & Training

Blue House Energy: Online Canadian Certification Courses On Building Science & Energy Efficiency
Blue House Energy provides online building science and energy efficiency certification courses for trades, contractors and energy efficiency professionals.

BPI: Certifications For Advanced Home Energy Professionals
Building Performance Institute advanced Home Energy Professional certifications covering Energy Auditor, Retrofit Installer Technician, Crew Leader and Quality Control Inspector demonstrate advanced competency through work experience prerequisites, as well as written and field exams.

BPI: Criteria For Accredited Building Performance Contractor
Building Performance Institute describes credentialing process for business companies, administered by BPI, that evaluates certain business practices, technical operations and quality management systems necessary to ensure the delivery of building performance services in conformance to BPI Standards. (PDF)

BPI: US National Certifications For Energy Efficiency Retrofit Work
Building Performance Institute offers certification programs for building analyst, envelope professional, heating, air conditioning and heat pump and manufactured housing.

BPIC: Building Performance Institute Canada
Building Performance Institute Canada was formed to address the quality of work done when retrofitting existing residential homes in Canada. BPI Canada is focusing on building an energy retrofit industry by building on existing program and working with existing stakeholders. BPI Canada will do this by building a complete site quality assurance program which includes assisting persons to become building professionals in installing energy efficient measures. The installation process shall always keep in mind health and safety issues for both the workers and for the occupants of the home.

Building Performance Center: BPI Certification Courses In Bellingham
Building Performance Center is a building performance contractor that provides technical training, diagnostic services, indoor air quality investigations & mitigation, and energy efficiency retrofits. The BPC also provides consulting services in organizational and program development.

Building Performance Institute: Affiliate Trainers Across USA
Building Performance Institute network of Affiliate training organizations offer BPI nationally recognized training and certification programs across the USA. They help raise the bar in home performance contracting by providing classroom and in-the-field training, as well as proctoring exams for highly skilled BPI Certified Professionals.

CECC: Credentialing For Energy Efficiency & Renewable Energy
Clean Energy Credentialing Coalition is a group of US nationally accredited credentialing organizations promoting quality credentialing for the renewable energy and energy efficiency markets.

EERE: Links To US Energy Efficiency Education and Professional Development
US Department of Energy Office of Energy Efficiency & Renewable Energy offers links to colleges and universities with degree programs or specializations in clean energy fields, community colleges and training centers that offer two-year degrees or certificates for jobs in the field of energy efficiency and renewable energy, and individual seminars, training, or courses on clean energy topics.

Home Energy: Search For Home Performance Trainers & Courses
Home Energy magazine provides a search service for finding home performance trainers and courses. Listings are displayed by state/province, with contact information for the training organization.

HPRC: Career Resources For Home Performance Industry
Home Performance Resource Center career resource site provides job profiles and additional resources for self assessment and job training.

IREC ISPQ: Interstate Renewable Energy Council - Credentialing Body
Interstate Renewable Energy Council uses the ISPQ international framework to assess content, quality, and resources across a range of renewable energy, energy efficiency and weatherization training programs. This process leads to defined workplace knowledge and skills, and ensures the legitimacy of what is being taught and by whom. An IREC ISPQ credential sends a strong signal that a rigorous standard has been met.

Kaplan Clean Tech: Courses For BPI Certification & Energy Auditing
Kaplan Clean Tech provides online and field training courses that prepare you and your organization to meet the BPI Accreditation process.

NREL: Job Task Analysis For Retrofit Installer Technician
US National Renewable Energy Laboratory report NREL Job Task Analysis: Retrofit Installer Technician is intended for those who install energy efficiency upgrades in single-family homes, and small multi-family housing (2-4 units). It includes all of the tasks a Retrofit Installer Technician may perform, as well as the knowledge, skills, and abilities required to do these tasks. (PDF)

NTER: Online Courses In Building Science & Weatherization
National Training and Education Resource provides online learning courses in building science, energy efficient building, weatherization, and others.

RESNET: Qualified Contractor & Builder Guidelines
US Residential Energy Services Network has guidelines for the emerging market of contractors that are not yet ready to become comprehensive building performance contractors. These contractors must pass a RESNET test, agree to the RESNET Code of Ethics, have an approved consumer complaint resolution process, and be certified by a RESNET accredited Contractor and Builder Education and Qualification Provider.

Saturn Resource Management: Online Courses For Energy Professionals
Saturn Resource Management offers online courses for test prep and continuing education for energy auditors and building performance professionals.

US DOE: Guidelines For Home Energy Professionals
US Department of Energy project Guidelines for Home Energy Professionals helps establish a national residential energy upgrade industry and a skilled and credentialed workforce. It creates standard work specifications, advanced professional certifications for workers, and accredited training programs.

WAP: Weatherization Training Course Presentations
US Weatherization Assistance Program provides online training materials including Introduction to Weatherization, Communication Skills, House as a System, Building Science Basics, Blower Door Basics, Pressure and Thermal Boundaries, Combustion Safety, Worker Safety, Materials, Tools & Equipment, Typical Weatherization Measures, Mobile Home Basics, Multi-Family Basics, Hands-On Props, and Conclusion.

WAPTAC: Core Competencies For Weatherization Personnel
Weatherization Assistance Program Technical Assistance Center describes core competencies for those involved in weatherization of existing homes.

Wx Workforce Training: Online Training Courses For Weatherization
US Wx Workforce Training offers online courses on weatherization including fundamentals, installers, crew chiefs, and auditors.
Industry Information

ACI: Annual ACI National Home Performance Conference
Affordable Comfort presents it's annual ACI National Home Performance Conference creating a forum where forward-thinking people can meet to get a wealth of unbiased building science know-how and all the latest product information. Connect with influencers in the home performance and weatherization industry. Share in their knowledge. Learn new ideas. Exchange best practices. Discover new products, technologies and solutions. Forge new alliances. It will be held in Nashville, Tennessee March 19-22, 2017.

EEBA: Excellence In Building Conference & Expo
Energy and Environmental Building Association annual Excellence in Building Conference & Expo brings together builders, remodelers, developers, architects, designers and manufacturers to learn the science behind green and sustainable building practices, to understand new regulations and legislative measures, and to capitalize on increasing opportunities.

Energy Circle: Home Performance Industry 2016, Predictions From Experts
Energy Circle surveyed the home performance intelligentsia (aka friends, colleagues and clients) for their soothsaying on the year ahead. Here are their predictions for 2016.

Energy OutWest: Bi-Annual US Weatherization Conference
Energy OutWest organizes and delivers every other year it's regional weatherization (wx) conference. It receives wide attendance by weatherization professionals from community assistance agencies in Alaska, Arizona, California, Idaho, Nevada, Oregon, Washington, the Navajo Nation, and the Intertribal Council of Arizona. Commercial weatherization professionals also participate significantly both in learning sessions and with displays of their products and services.

Energy Vanguard: No Shortage of Home Performance Jobs
Energy Vanguard says there will not be a shortage of home performance jobs because new homes are still being built and sold with plenty of home performance problems.

GBPN: Policy Tool For Energy Renovation
Global Buildings Performance Network online Policy Tool for Renovation compares and analyzes 12 best-practice renovation policies for residential buildings from Europe and the United States, using 14 criteria that define a state-of-the-art policy package.

Home Builder: Canadian Survey On Importance Of Energy Efficiency To Clients
Home Builder magazine survey of builders and renovators on how important energy efficiency is to their clients asked about level of importance, increase in profits, and sources of information.

Home Energy: Production Builder Enters Whole-House Retrofit Market
Home Energy Magazine describes how Grupe Homes completed its first Home Performance with Energy Star whole-house retrofit. Grupe achieved whole-house energy savings of 48% compared to the preretrofit energy usage in the 20-year-old, three-bedroom ranch home, located in Central Valley of California. The home marks the first foray into the retrofit market for the award-winning Sacramento area production builder, who was building 300 - 400 homes a year prior to 2007.

Home Performance Coalition: Road-Map To A Successful Home Performance Industry
Home Performance Coalition white paper Bringing On The Boom And Beating The Bust provides a framework for developing a roadmap to a successful home performance industry. (PDF)

HPRC: Green Jobs In Residential Energy Efficiency Industry
Home Performance Resource Center report Green Jobs in the Residential Energy Efficiency Industry provides home performance industry perspective on training and workforce development. (PDF)

Inside Climate: How Green Retrofits Could Save The World
Inside Climate News article says retrofitting existing buildings to make them more energy efficient is by far the most effective way to dramatically reduce the CO2 emissions associated with the built environment. It explores various financing strategies and business models that have been floated as solutions to the problem of scaling the building industry, including Energy Services Companies (ESCOs), Clean Energy District Financing, and direct loans from utility companies to finance energy upgrades.

NAHB: Home Remodels & Retrofits Are Key To Energy Efficient Future
US National Association of Home Builders says a study shows even the most aggressive efficiency goals for new homes won't make a dent in overall energy consumption. Instead, remodeling and retrofitting older homes is by far the more efficient solution.

NARI: Energy Efficiency Upgrades During US Renovations
US National Association of Remodeling Industry fourth-quarter Remodeling Business Pulse survey polled 621 members and found 80 percent of them discussed energy efficiency with homeowners, and 94 percent are involved in one or more energy savings upgrades.

Pembina: Building Energy Retrofit Potential in BC
Pembina Institute report Building Energy Retrofit Potential in BC addresses deep energy and emissions reductions from existing building stock. It describes the current state of major building types in the province, and illustrates targets and actions that could help achieve a near-decarbonization of existing buildings by 2050. (PDF)

Rebuilding America: US National Policy For Energy Efficiency Retrofits
Center for American Progress and Energy Future Coalition have just published the results of a joint non-partisan initiative to develop a comprehensive framework for retrofitting American homes and businesses on a large scale.

Residential Architect: Americans Practice Accidental Environmentalism
Residential Architect magazine says most purchases of green home improvement products and projects are not driven by a desire to save the planet or live more sustainably, but by a need to save energy and money.

RESNET: Annual US National Building Performance Conference
US Residential Energy Services Network annual Building Performance Conference is the premier national forum on home energy ratings, existing home retrofits, building codes and energy policy. It offers strategic options to the business challenges and provides a venue where you can obtain usable solutions in an evolving industry. The next conference will take place on February 27-Mar 1, 2017 in Scottsdale, AZ at the Scottsdale Resort and Conference Center.

UBC: Retrofitting Existing Residential Neighbourhoods For Deep Greenhouse Gas Reductions
UBC research project Retrofit Challenge: Re-thinking Existing Residential Neighbourhoods for Deep Greenhouse Gas Reductions, examines a range of different options to retrofit existing residential neighbourhoods for building-related GHG reductions out to 2050. It looks at the GHG reductions achievable under existing policy directions and grant programs, intensive building-level retrofits, and shared opportunities for reductions, including neighbourhood-scale renewable energy systems. (PDF)

US Gov: Recovery Through Retrofit Report
US Recovery Through Retrofit is a report that builds on the foundation laid in the Recovery Act to expand green job opportunities and boost energy savings by making homes more energy efficient. It recommends how to use existing authority and funding to lay the groundwork for a self-sustaining home energy efficiency retrofit industry. (PDF)
Industry Sectors

EECN: Canadian Energy Efficient Contractors Network
Energy Efficiency Contractors Network is an organization consisting of contractor associations and partners with an interest in delivering energy efficiency through contractors in Canada. EECN association members include Canadian Hydronics Council, Canadian Urethane Foam Contractors Association, Electrical Contractors Association of Ontario, Heating, Refrigerating and Air Conditioning Institute of Canada, National Air Barrier Association, and Ontario Electrical League.

EGIA: US Electric & Gas Industries Association
Electric and Gas Industries Association is a US national non-profit energy efficiency and renewable energy contractor association. It serves a network of installation contractors, regional distributors, product manufacturers and other trade allies delivering energy efficiency and renewable energy solutions to homes and businesses.
Information Sources

BC Hydro: Free E-mail Newsletter On Energy Efficiency For Homeowners
BC Hydro free monthly e-mail newsletter for residential customers focuses on energy-saving tips and stories. Content includes conservation issues and questions, Green Guides, customer success stories, popular posts from Unplug this Blog!, recent updates from bchydro.com and information about the latest rebates and savings.

BPI: Ask An Expert Service From Technical Staff
Building Performance Institute technical staff offers an online Ask The Experts service.

BPI: Free Newsletter For Home Performance Industry
Building Performance Institute free Performance Matters newsletter provides news, business planning tips, and more.

CMHC: Fact Sheets On Renovating Different Homes For Energy Savings
CMHC online fact sheets offer energy-saving options for various house models and ages including Duplexes & Triplexes, Homes with Walkout Basements, Mobile Homes, Common Additions, Post-1960s Two-Storey Homes, Pre-World War II Houses, Row Houses, Split Entry Homes, and Split-Level Homes.

Fine Homebuilding: Free & Paid Articles & Videos On Energy Efficiency
Fine Homebuilding magazine as both free and paid articles and videos on energy efficiency, as well as a wide range of other topics.

GBA: Detail Drawings For Deep Energy Retrofits
Green Building Advisor provides detail drawings for upgrading windows, walls, roofs, and basements with spray foam, rigid foam, blown-in cellulose, and other insulation types.

Green Dream: Podcasts On Building Performance
Green Dream Group offers free access to podcasts on building performance.

GTI: Best Practices For Home Energy Retrofits In California
Gas Technology Institute site Measured Home Performance provides online videos and resources on best practices for home energy retrofits in California.

Home Energy Magazine: Subscription Magazine On Energy Efficient Homes
Home Energy magazine supplies objective and practical information on residential energy efficiency, performance, comfort, and affordability. $75 USD/Year

Home Energy Pros: Discussion Forums On Home Weatherization
Home Energy Pros discussion form on weatherization covers topics relating to home energy audits and retrofits.

Home Energy Pros: Online Community For Home Performance Industry
Home Energy Magazine and Lawrence Berkeley National Laboratory online community allows members to create personalized profiles, read blogs by industry experts (and start their own), and participate in relevant discussions on home performance topics.

Home Energy Saver: Online Forum For Homeowners & Renovators
US Lawrence Berkeley National Laboratory and Home Energy magazine have launched the Home Energy Saver Community, an online forum for homeowners and remodelers.

Home Performance Coalition: Industry Resource Site
Home Performance Coalition website is for professionals in the home performance and weatherization industry. It features in-depth information about HPC's upcoming events and ongoing initiatives, as well as industry news and resources for industry professionals.

Home Performance Coalition: Reports On Deep Energy Reductions
Home Performance Coalition online reports describe some deep energy reductions. These are whole-house retrofits that reduce a home's energy consumption by 70% or more and go beyond conventional upgrades, such as replacing HVAC equipment and other household appliances, to address all of the systems in a home that affect energy use.

Home Performance Forum: Industry Discussion Forums
Home Performance Forum offers online discussion forums for various home performance industry topics.

LBL: Driving Demand for Home Energy Improvements
Lawrence Berkeley National Laboratory Energy Analysis Department's work on driving demand for home energy efficiency improvements explores strategies that can be used to increase the adoption of comprehensive home energy upgrades.

Measured Home Performance: Online Videos On Home Energy Retrofit Measures
Measured Home Performance online videos describe best practices for many different home energy retrofit measures.

Montana Univ.: Weatherization Training Center
Montana Weatherization Training Center provides information and resources on weatherization of existing homes.

Now House: Canadian Online Videos On Energy Retrofit Measures
Now House is an Ontario organization that will turn a 60-year-old WWII house into a near zero energy home. These online videos describes key steps including energy audit, air sealing, insulation, heating systems, windows, lighting, and solar energy.

NRCan: Canadian Resource Site For Energy Retrofit Of Homes
Natural Resources Canada offers information and resources that can help you complete energy efficient retrofits and renovations.

NRCan: Planning Energy Efficiency Renovations For Your Home
Natural Resources Canada provides an overview of things to consider when planning energy efficiency renovations for your home.

Saturn Resource: Purchasable Books On Residential Energy Efficiency
Saturn Resource Management sells a wide range of books on energy efficiency, many targeted to the building industry and trades.

Smarter House: Resources On Home Energy Efficiency
Smarter House can help homeowners and renters discover energy efficiency improvements that fit their budgets and pay dividends in energy savings.

TGHE-TV: Online Videos On Deep Energy Retrofits
Jeff Wilson of HGTV presents online Greened House Effect videos on how to complete a deep energy retrofit on an older home.

Tru Tech Tools: Training Books, Guides & Manuals On Home Performance
Tru Tech Tools sells training books, guides and manuals on various home performance topics.

TruTools: Online Video Library On Home Performance Topics
TruTech Tools free online videos covers various home performance topics including combustion safety testing, air-conditioner diagnostics, infrared thermography, and much more.

WAP: Online Videos & Media On Weatherization
US Weatherization Assistance Program provides online videos and multimedia on residential weatherization topics.

WAPTAC: Presentations From 2011 National Weatherization Training Conference
US WAPTAC provides free online access to conference presentation materials from the 2011 National Weatherization Training Conference.

WAPTAC: Weatherization Assistant Manuals
Weatherization Assistance Program Technical Assistance Center offers downloadable weatherization assistant manuals.

WX TV: Online Videos On Weatherization
WX TV provides free access to online videos of their previous TV shows covering various topics relating to weatherization of existing homes.
Issues & Performance

ACCA: Existing Home Evaluation & Performance Improvement Standard
Air Conditioning Contractors of America and RESNET online Existing Home Evaluation & Performance Improvement Standard establishes minimum criteria by which deficiencies in existing residential buildings are identified by audit, improvement opportunities are assessed, scopes of work are finalized, and work is performed in accordance with industry recognized procedures. (PDF)

BPI: GoldStar Contractor Assurance Program
Building Performance Institute offers it's GoldStar Contractor assurance program which drives service improvement through front-end quality management training and mentoring of contractors, rather than back-end QA inspections after work is done.

BPI: Standard Requirements For Certificate Of Completion For Residential Energy Upgrades
Building Performance Institute standard BPI-2101-S-2013: Standard Requirements for a Certificate of Completion for Residential Energy Efficiency Upgrades was created for the real estate sales process. It is designed to promote accurate valuation of energy efficiency by standardizing the way energy efficiency improvements are represented. It identifies a standard set of data elements for certificates that document the completion of a whole-house energy upgrade or individual energy conservation measures in existing homes. (PDF)

BPI: Technical Standards For Building Performance Contractors
Building Performance Institutes provides technical standards for residential energy retrofit work completed by its certified contractors.

Energy Star: Home Performance With Energy Star
Home Performance with ENERGY STAR, is a US comprehensive, whole-house approach to improving energy efficiency and comfort at home, while helping to protect the environment.

HPC: Appraised Value & Energy Efficiency: Getting it Right
Home Performance Coalition online brochure Appraised Value & Energy Efficiency: Getting it Right educates home-buyers, homeowners, and energy efficiency contractors on the importance of documenting home energy efficient features in a standard format so that they are taken into account during an appraisal. (PDF)

NAHB: How To Help Appraisers Fairly Value Home Energy Efficiency Improvements
NAHB Home Innovation Research Labs says nothing works in the appraisal process unless high performance homes are consistently documented.

NRCan: Canadian EnerGuide Rating System For Existing Homes
Canadian EnerGuide Rating System for Existing Homes offers a standard measure of a home's energy performance, and allows you to compare the energy efficiency of comparable homes in neighbourhoods across Canada.

NRCan: Health & Safety Considerations for Energy Efficient Renovations
NRCan describes some health and safety issues and considerations for energy efficient renovations.

Remodeling Magazine: The Folly Of Deep Energy Retrofits
Remodeling magazine article says understanding the home is a system within a system within a system that operates under more complex lines of impact than BTUs consumed, there is a danger of strapping blinders on and pursuing a single-minded goal without considering the systemic implications of such actions.

RESNET: EnergySmart Contractors Guidelines
US Residential Energy Services Network describes their EnergySmart Contractor Guidelines that outline criteria for creating EnergySmart Home Performance Teams for implementing comprehensive home performance improvement projects. (PDF)

US DOE: Application Of Construction Quality Process To Existing Home Retrofits
US DOE report Application of a Construction Quality Process to Existing Home Retrofits follows the evolution of the construction quality process from its development for new homes, to its application in the construction of a high performance home with enhanced specifications, and its application in a crawlspace renovation.

US DOE: Guideline For Quality Management In Existing Homes
US Department of Energy online Strategy Guideline: Quality Management in Existing Homes is designed to highlight the quality assurance (QA) process that can be applied to any retrofit activity. (PDF)

US DOE: Health Benefits of Home Performance Upgrades
US Department of Energy report Home Rx: The Health Benefits of Home Performance, shows that home performance upgrades can improve the quality of a homes indoor environment by reducing the prevalence of harmful indoor air pollutants and contaminants. (PDF)

US DOE: High-R Walls For Remodeling: Wall Cavity Moisture Monitoring
US Department Of Energy report High-R Walls for Remodeling: Wall Cavity Moisture Monitoring focuses on the performance of wall systems, and in particular, the moisture characteristics inside the wall cavity and in the wood sheathing. While this research initially addresses new home construction, the goal is to address potential moisture issues in wall cavities of existing homes when insulation and air sealing improvements are made. (PDF)

US DOE: Quality Assurance Strategy For Existing Homes
US Department of Energy online guide Quality Assurance Strategy for Existing Homes: Final Quality Management Primer for High-Performing Homes, outlines steps to implementing a comprehensive quality management system. It focuses on smoothing the transition to high performance homes, minimizing builder risks, and delivering a consistent message about the value of high performance homes. (PDF)

US DOE: Standard Work Specifications For Home Energy Upgrades
US Department of Energy online Standard Work Specifications for Single-Family Home Energy Upgrades define the outcomes of quality work within the home energy upgrade industry. They set uniform expectations that can be leveraged for energy audits, scopes of work, quality control efforts, and training. They reflect a whole-house approach to installing energy-efficiency measures and include ventilation, insulation, air sealing, and more. Safe work practices, relevant codes, and US EPA Healthy Indoor Environment Protocols for Home Energy Upgrades are also included.

US DOE: Workforce Guidelines for Home Energy Upgrades
U.S. Department of Energy is developing Workforce Guidelines for Home Energy Upgrades that include: Standard Work Specifications that define the performance requirements for high quality energy efficiency retrofit work and the minimum conditions necessary to achieve the desired outcomes of a given retrofit measure; Technical standards that encompass standards, regulations and codes developed by government, industry or third]party standards development organizations; Job Task Analyses that identify and catalog all of the tasks a given worker typically performs when completing a suite of energy efficiency improvements in a home; Essential KSAs that identify the minimum knowledge, skills, and abilities that a skilled worker should possess to perform high quality energy efficiency retrofit work. (PDF)

WAPTAC: US Weatherization Health & Safety Resource Site
US Weatherization Assistance Program Technical Assistance Center provides health & safety information on state health & safety plans, crew safety, combustion appliances & gases, deferral standards, lead paint, mold and moisture, electrical issues, and other health and safety concerns.

WX TV: Health & Safety Respirators & Personal Protective Equipment
WX TV online video Health & Safety Series: Respirators & Personal Protective Equipment looks at respiratory protection and personal protective equipment. You'll see a fit test in action as well as what DOE requires you to wear for hazardous weatherization work.
Procedures

AbeBooks: Purchasable Technical Guide For Renovators
AbeBooks.com sells CMHC Renovator's Technical Guide using the House-As-A-System concept considers how all systems in a house interact and how changes made to one system can impact on the performance of one or more of the other systems in the house. $32 CDN

Blue House Energy: Valuing The Appraiser In Home Performance
Blue House Energy describes how ton value the role of the appraiser in home performance.

BPI: XML Standard For Home Performance-Related Data Collection
BPI- 2200-S-2013 Standard for Home Performance-Related Data Collection provides requirements for the prescribed fields for collecting home performance related data and the minimum measure description collection criteria. (PDF)

BPI: XML Standard For Home Performance-Related Data Transfer
BPI-2100 Standard for Home Performance-Related Data Transfer is designed to facilitate communication and the exchange of information and data among all actors in the home performance industry by providing an extensible mark-up language (XML) standard for transferring information related to whole-house energy efficiency upgrades. (PDF)

Building Science: Breathing New Life Into Aging Homes
Building Science online slide show presentation describes steps for energy retrofit of existing homes. (PDF)

Building Science: Cold Climate Comprehensive Deep Energy Retrofit
Building Science describes a cold climate comprehensive deep energy retrofit that included thick interior insulation for the foundation walls, a new insulated basement slab, new boiler and water heater, exterior and interior insulation and recladding of the walls and roof, new triple- and double-glazed windows, replacement of the central air conditioning system with a high efficiency air-source heat pump, and provision of a heat recovery ventilator for mechanical ventilation.

Building Science: Cold Climate Deep Energy Retrofit
Building Science describes a comprehensive renovation resulting in a projected 74% energy use reduction in a two-family residence of circa 1925.

Building Science: Cold Climate Deep Energy Retrofit Of Cape Cod
Building Science describes a cold climate deep energy retrofit of a Cape Cod, 1 1/2 story single family home with 1,100 ft2 living space and conditioned basement. The overall retrofit strategy was to apply exterior insulating sheathing to the walls and roof, replace the existing windows with high performance windows, and insulate the basement.

Building Science: Deep Energy Retrofit Builder Guide
Building Science online Deep Energy Retrofit Builder Guide provides useful examples of high performance retrofit techniques for the building enclosure of wood frame residential construction in a cold and somewhat wet climate. The examples demonstrate effective management of liquid water (rain and ground water), airflow, water vapor flow and heat flow. Retrofit ventilation approaches are reviewed because mechanical ventilation is taken to be a necessary component in high performance buildings. This guide does not address mechanical heating, cooling or water heating systems beyond outlining basic combustion safety measures. (PDF)

Building Science: Deep Energy Retrofit Details, Questions, Issues
Building Science online slide show presentation discusses deep energy retrofit details, questions, and issues. (PDF)

Building Science: Deep Energy Retrofit Of Cold Coastal Climate House
Building Science describes solutions to a deep energy retrofit for a house in a cold coastal climate.

Building Science: Deep Energy Retrofit Of Historic Home
Building Science online slide show presentation Preservation Meets Building Science: The Mallett Deep Energy Retrofit, describes issues and solutions to energy efficiency, durability, and constructability. (PDF)

Building Science: Deep Energy Retrofit Specifications, Plans & Staged Retrofits
Building Science online slide show presentation describes considerations for deep energy retrofit specifications, plans and staging of work. (PDF)

Building Science: Deep Energy Retrofits Lessons From Field
Building Science online slide show presentation describes deep energy retrofits lessons from the field from the Building America program. (PDF)

Building Science: Details For Deep Energy Retrofits
Building Science online slide show describes construction details for deep energy retrofits for existing single family homes. (PDF)

Building Science: Extreme Home Makeover For Energy Efficiency
Building Science online presentation describes how to perform deep energy retrofits on existing homes, and offers construction details for each building component and measure. (PDF)

Building Science: How John Straube Would Retrofit Or Build For Energy Efficiency
Building Science Seminar presentation by Dr. John Straube describes how he would retrofit an existing home, or build a new one, for comfort, health, durability, and energy efficiency. (PDF)

Building Science: Leiningen Versus The Ants Redux
Building Science describes the energy retrofit of a previously retrofitted building in Boston, along with lessons learned in both situations.

Building Science: Low Energy Buildings Retrofits
Building Science Seminars online slide show presentation by Dr. John Straube describes benefits and procedures of completing energy retrofits on existing buildings. (PDF)

Building Science: Low-Energy Building Retrofits
Building Scence online slide show presentation describes how to retrofit a house for low energy consumption. (PDF)

Building Science: Performance Of 7 Energy Retrofits
Building Science says with the high exposure of energy efficiency and retrofit terminology being used in the general media at this time, it is important to have evidence that measures being proposed will in fact benefit the homeowner through a combination of energy savings, improved durability, and occupant comfort. It summarizes their research on 7 test homes that included the approximate energy savings and comfort improvements that can be expected from combinations of retrofit measures, example retrofit costs, and the importance of data collection during the retrofit process.

Building Science: Priorities For Residential Energy Retrofit
Building Science online slide show describes key priorities for retrofitting homes including bring combustion appliances up to code, controlling pressures, installing controlled ventilation, getting rid of big holes, and insulating. (PDF)

Building Science: Remodeling For Energy Efficiency
Building Science article from Fine Homebuilding discusses how a 150-year-old house can approach zero energy use. (PDF)

Building Science: Residential Exterior Wall Superinsulation Retrofit Details & Analysis
Building Science paper focuses on retrofitting very high insulation levels (i.e., superinsulation, or deep energy retrofits). Several cold-climate residential retrofit projects have been completed using an exterior insulation approach on light-frame above-grade walls. This type of retrofit is a reasonable step if a recladding of the building is already being done for aesthetic or ongoing maintenance reasons. The methods demonstrated here result in walls with insulation levels in the R-35 to R-40 range. (PDF)

Building Science: Retrofitting Cape Cod Style & Masonry Homes
Building Science online slide show presentation describes issues, considerations and procedures for energy efficient retrofit of cape cod style and masonry homes. (PDF)

Building Science: Super-Insulated Retrofits
Building Science online slide show describes benefits, issues, and procedures for adding high levels of insulation when performing energy retrofits on existing homes. (PDF)

Building Science: Technology & Industry Requirements For Deep Energy Retrofits
Building Science Corporation hosted a meeting of experts to forecast the future of deep energy retrofits. This summary Report on the Expert Meeting for Details for Deep Energy Retrofit identifies knowledge gaps within the industry to be addressed, research gaps, and code constraints. (WORD)

Building Science: Toward Zero Energy Renovation
Building Science slide show presents background and details of how a 100 year old house is renewed to last an additional 100 years, along with very high performance in energy efficiency. (PDF)

Building Science: We Need To Retrofit Homes Different This Time
Building Science describes how to stay out of trouble when energy retrofitting houses, based on our past 30 years of experience. In order of priority: make sure all combustion appliances have combustion air; make sure all combustion appliances are vented correctly; make sure all houses have controlled mechanical ventilation; make sure all houses that are going to have their attics insulated have their attics ventilated; then air-tighten and insulate to your hearts (and budgets) content.

CARB: Energy Efficiency Analysis For Retrofitting A 1970's Home
Consortium for Advanced Residential Building identified energy benefits of various retrofit energy efficiency measures for a typical 1970's ranch home in ten cities across four climate zones in the United States. A tool was developed that enables users to compare a typical 1970's ranch home against an IECC 2009 code-compliant home of the same configuration and against the 70's base case plus retrofits. (PDF)

CMHC: Considerations For Net-Zero Energy In Existing Housing
CMHC research looks at existing homes of different types and ages in various climatic regions across Canada in an effort to determine the technical feasibility of retrofitting to achieve net-zero energy consumption. Building envelope upgrades are critical, with photovoltaic systems, high-performance windows, and high-efficiency heating and ventilation equipment also contributing to savings. Some existing houses could be transformed to net zero energy. The methods and costs are outlined in the report. (PDF)

CMHC: Different Approaches To Energy Reduction In 1-1/2-Storey Houses
CMHC report Testing Different Approaches to Energy Reduction in Five 1-1/2-storey Post-war Houses summarizes results after they had deep energy retrofits to reduce energy costs to zero, to reduce emissions, and to create homes that are comfortable and healthy to live in. The five houses underwent five different energy retrofits and were monitored for 12 months following their completion and evaluated against baseline data for a similar period. (PDF)

CMHC: Energy Efficiency Building Envelope Retrofits For Your House
CMHC describes energy efficiency building envelope retrofits for your house including airtightness, insulation and window/door replacement strategies.

CMHC: Energy Modelling Of Energy Efficiency Retrofits In Northern Housing
CMHC report Energy Performance Modelling of Energy Efficiency Retrofits in Northern Housing evaluated three representative housing archetypes, in five Northern Canadian communities. The scope of EEMs included building envelope, mechanical equipment, lighting and electric appliances. Energy savings at both the system/equipment and whole-building levels were generated for each EEM and packages of EEMs were customized to deliver whole-building energy savings of 10% and 25% for each housing archetype in each location. (PDF)

CMHC: Exterior Retrofit For 1960s & 1970s Two-Storey Houses
CMHC online publication Exterior Retrofit for 1960s and 1970s Two-Storey Houses describes air-sealing and exterior insulation retrofit options to achieve the targeted space heating energy savings in a typical 1960s and 1970s two-storey house. (PDF)

CMHC: Highly Energy Efficient Building Envelope Retrofits For Houses
CMHC report Highly Energy Efficient Building Envelope Retrofits for Houses provides design and construction information for retrofitting existing residential wood frame building envelopes to reduce space heating energy use by 75% or more. IT investigates high insulation building envelope retrofits; develops targets for insulation and airtightness values for foundations, walls, windows, doors and roofs; considers building code and zoning implications of changes to the building envelope; and presents details and specifications of practical retrofit strategies for common housing archetypes. (PDF)

CMHC: Interior Energy Retrofits For 1960s & 1970s Two-Storey Houses
CMHC factsheet Interior Retrofit for 1960s and 1970s Two-Storey Houses describes options for adding insulation to, and air sealing, the foundation, walls and attics of typical 1960's and 70's two storey houses to achieve space heating energy savings. It includes starting point (what these houses typically have), interior air-sealing and insulation options to achieve the targeted energy savings, technical considerations to keep in mind in the planning of the retrofit project, and general precautions to avoid common pitfalls and unintended consequences of envelope retrofit projects. (PDF)

CMHC: Renovating Different Types Of Houses For Energy Savings
Canada Mortgage & Housing Corporation fact sheets describe 11 different styles of single family, duplex, row houses, mobile homes, and simple additions, with suggestions on renovating them to achieve your best energy savings. (PDF)

CMHC: Understanding Energy Efficiency Retrofit Options For Your House
CMHC provides decision trees to provide guidance to homeowners on the options and considerations for common residential energy efficiency retrofits. They give information on a range of pre-existing conditions that can influence energy retrofit decisions and help you to avoid problems in the future that can undermine your retrofit investment.

Custom Home: Energy Labels A Powerful Tool For New Homes & Retrofits
Custom Home magazine says like a car's MPG rating, a national metric for home performance is essential for helping consumers make decisions on home purchases and energy upgrades.

Dumont: Deep Energy Retrofit Of Building Enclosure
Rob Dumont slide show presentation describes the deep energy retrofit of a Canadian residential building enclosure using the double wall and double roof approach. (PPT)

Dumont: Deep Green Retrofits For Cold Canadian Climates
Canadian building scientist and researcher Rob Dumont online presentation describes rationale, considerations, and procedures for planning and implementing deep energy retrofits in cold Canadian climates. (PDF)

Efficiency First: Getting Started In The Home Performance Industry
Efficiency First online Home Energy magazine guide provides tips for contractors and others who want to get into the Home Performance retrofit business.

Energy Vanguard: 10 Uncommon Tips For Winterizing A Home
Energy Vanguard describes what you should really do to prepare a home for an efficient and cozy winter.

Energy Vanguard: When Fixing An Old House Follow Einstein's Advice
Energy Vanguard describes some important questions to ask in the planning and assessment phase of fixing up an old house.

Fine Homebuilding: Home Remedies For Energy Nosebleeds
Fine Homebuilding describes how with a little detective work, you can correct construction mistakes and cut energy bills by a third or more.

GBA: Apply The Pyramid For Deep Energy Retrofits
Green Building Advisor says a deep energy retrofit is done to save energy and invest wisely. To get the most bang for your buck, the scope of work should follow the energy efficiency pyramid.

GBA: Best Construction Details For Deep-Energy Retrofits
Green Building Advisor energy-efficiency experts share techniques for deep-energy retrofits.

GBA: Deep Energy Retrofit Of The Envelope
Green Building Advisor podcast describes a deep energy retrofit with focus on the envelope. It discusses how to cut a home's energy use by 50% by working out the details for walls, roof, foundation, and slab.

GBA: Energy Upgrades For Beginners
Green Building Advisor provides advice on how to improve the energy performance of an older house, by start with a thorough inspection.

GBA: Hard Truths Of Home Performance
Green Building Advisor contributor says among other hard truths, residential energy retrofit work isn't cost-effective.

GBA: Online Video Of Deep-Energy Retrofit
Green Building Advisor online video shows the deep energy retrofit during a gut rehab of a 1912 bungalow in Portland, Oregon.

GBA: Retrofits Versus Reductions
Green Building Advisor says it's possible to achieve significant energy savings without a deep energy retrofit.

HEED: Free Software For Home Energy Efficient Design
UCLA easy-to-use software program allows you to see how much energy and money you can save by making various design or remodeling changes to your home.

HPRC: US Resource Center For Energy Retrofit Programs
Home Performance Resource Center provides research and intelligence for the design and implementation of successful energy retrofit programs and initiatives.

IE3: Prioritizing Residential Energy Efficiency Upgrades
Indoor Environment & Energy Efficiency describes how to Prioritize energy efficiency upgrades of a home.

JLC: Common Energy Efficiency Claims May Be Misleading
Journal of Light Construction article describes some issues with common claims and myths about energy efficient products and building procedures. (PDF) Free Registration Required

LBL: Deep Energy Retrofit Guidance
US Lawrence Berkeley Laboratory online Deep Energy Retrofit Guidance documents include specific recommendations for each US climate zone, lessons learned, guidance for the overall retrofit process, controlling costs and increasing cost-effectiveness, fuel switching, occupant behavior, and phased approaches. (PDF)

LBNL: Delivering Energy Efficiency To Middle Income Single Family Households
Lawrence Berkeley National Laboratory study Delivering Energy Efficiency to Middle Income Single Family Households identifies steps that energy efficiency program managers and policy makers can take to deliver significant savings on home energy bills to middle income U.S. households. (PDF)

Minnesota: Energy Efficiency Opportunities For Homes With High Usage
Minnesota government report Energy Efficiency Opportunities for Homes with High Usage describes market characterization and customer engagement strategies. It identifies factors that are the greatest contributors to high natural gas and/or electricity use (80th percentile or above) in Minnesota homes, and discusses feasibility of combining high-resolution energy consumption data with tax assessor data to perform remote analysis of potential energy-saving opportunities, supporting the effective targeting of energy efficiency program strategies. (PDF)

Mortgage Calculator: Lowering You Home Heating Costs
Mortgage Calculator describes some simple ways in which homeowners can reduce their heating costs.

NAIMA: Where To Add Insulation To An Existing Home
North American Insulation Manufacturers Association describes where and how to add insulation to an existing home. (PDF)

NRCan: Keeping The Heat In
Natural Resources Canada online guide Keeping The Heat In describes basic principles of building science and provides guidance in home retrofit projects such as insulation and air sealing improvements. (PDF)

NRCan: Planning Energy Efficiency Renovations For A Home
Natural Resources Canada describes some steps in planning energy efficiency renovations including the audit, determining which retrofits to undertake, what products to use and whether to do the work yourself or hire a contractor.

ORNL: Retrofit Best Practices Guide For Homeowners
Oak Ridge National Laboratory online Retrofit Best Practices Guide: How to Save Energy When You Fix Up the Outside of Your Not-So-New House, provides homeowners with an overview of residential energy retrofit measures and procedures. (PDF)

RDH: Illustrated Guide For Northern Housing Retrofits
RDH Building Engineering online Illustrated Guide for Northern Housing Retrofits covers two optimal retrofit programs for a typical single-family dwelling in Canada's far North, and is intended to be an industry resource for achieving higher energy efficiency in existing homes, while maximizing utility cost savings and home passive survivability through lower energy use. (PDF_

RESNET: Five Common Energy-Saving Myths
US Residential Energy Services Network describes five of the most common energy-saving myths.

RMI: Making Home Energy Upgrades Accessible, Convenient, Affordable
Rocky Mountain Institute initiative Residential Energy+ will unlock pent up demand for residential energy performance improvements nationwide by addressing how home energy upgrades are financed and delivered.

Taunton: Purchasable Book On Insulate & Weatherize
Taunton book Build Like a Pro: Insulate and Weatherize, offers explanations, photos, and detailed illustrations to guide you through upgrading residential buildings and their systems for improved energy performance. It includes guidance on, finding and sealing sources of air leakage, choosing the right insulation, preventing costly moisture damage, troubleshooting windows, doors and skylights, maintaining HVAC systems, curing foundation problems, and much more. $20 USD

Taylor & Francis: Remember People When Retrofitting Owner-Cccupied Housing
Building Research & Information says what is significant about owner-occupied homes is that those initiating the retrofitting and those living in the house before, during and after the retrofitting are the same people. In most cases, these people do not have specific technical knowledge or an interest in retrofitting.

US DOE: Adding Energy Efficiency To Home Maintenance Projects
US Department of Energy and NAHB Research Center Industry Partnership report Key Innovations for Adding Energy Efficiency to Maintenance Projects explores ways to enhance energy efficiency in existing homes that would complement typical larger maintenance/remodeling projects. (PDF)

US DOE: Determining Optimal Residential Energy Efficiency Packages
US Department of Energy report describes an analysis method for determining optimal residential energy efficiency retrofit packages. (PDF)

US DOE: Energy Renovations, Insulation
US Department of Energy online Energy Renovations-Insulation is intended as a guide that energy performance contractors can share with homeowners to describe various insulation options for improving the energy performance and comfort of existing homes. It provides descriptions of many common insulation types, including their advantages and disadvantages, R-values, characteristics, and typical uses. The report also describes potentially hazardous products such as asbestos and formaldehyde and safety issues when conducting energy-efficient upgrades including radon. (PDF)

US DOE: Energy Savings Measure Packages For Existing US Homes
US Department of Energy report Energy Savings Measure Packages For Existing Homes presents a simple starting point to determine the most cost-effective Energy Savings Measure Packages (ESMP) for existing homes to achieve 15% and 30% savings in 37 locations across the United States. (PDF)

US DOE: Initial Results Of Cold Climate Wood-Framed Home Retrofit
US Department of Energy online report Analysis and Initial Results of Cold Climate Wood-Framed Home Retrofit describes a deep energy retrofit project for a two-family wood framed home located in Massachusetts. It examines the retrofit measures for the enclosure and mechanical systems and the decision making that took place during project planning. Occupant reactions and experiences are also described. (PDF)

US DOE: Managing Drivers Of Airflow & Water Vapor Transport In Existing Homes
US Department of Energy guideline Managing the Drivers of Airflow and Water Vapor Transport in Existing Single-Family Homes describes how to manage drivers that cause airflow and water vapor transport across the building envelope (and within the home), control air infiltration, keep relative humidity (RH) within acceptable limits, avoid combustion safety problems, improve occupant comfort, and reduce house energy use. (PDF)

US DOE: Performance Of Seven Cold Climate Deep Retrofit Homes
US Department of Energy report Proven Performance of Seven Cold Climate Deep Retrofit Homes examines seven test homes located in Massachusetts.The homes range in size from 1,868 ft2 to 3,484 ft2, constructed as early as 1760 and as late as 1953. Most homes underwent substantial or major renovations along with energy efficiency and durability upgrades. The retrofit strategies of each home are presented and compared, along with the pre- and post-retrofit airtightness achieved by the group in relationship to their enclosure areas and volumes. (PDF)

US DOE: Phased Guidance For Deep Energy Retrofits Over Time
US Department of Energy describes how over-time home energy upgrades can occur either with careful planning from the outset, or in a piece-meal fashion as time progresses. They provide guidance to capture the benefits (and limit the risks) of both approaches. (PDF)

US DOE: Strategies For Deep Energy Retrofits
US Department of Energy report National Grid Deep Energy Retrofit Pilot uses five case studies (test homes) to evaluate strategies to elevate the performance of existing homes to a level commensurate with best-in-class high performance new construction homes. Retrofit strategies are evaluated for impact on durability and indoor air quality in addition to energy performance. (PDF)

US DOE: Transitioning HVAC Contractors To Whole House Performance Contractors
US Department of Energy Report Transitioning Traditional HVAC Contractors to Whole House Performance Contractors discusses how HVAC companies can transition from a traditional contractor status to a service provider for whole house house energy upgrade contracting. (PDF)

US DOE: Two Emerging Business Models For Residential Deep Energy Retrofits
US Department of Energy report The Next Step Toward Widespread Residential Deep Energy Retrofits profiles two emerging business models that seek to resolve many of the challenges, weaknesses, opportunities, and threats common to conventional business models. (PDF)

US DOE: Wall Air Sealing & Insulation Methods In Existing Homes
US Department of Energy Measure Guideline: Wall Air Sealing and Insulation Methods in Existing Homes provides renovators and retrofit contractors an overview of considerations when including wall air sealing and insulation in an energy retrofit project. (PDF)
Product Supply

BC BEC: Energy Impacts Of Envelope Upgrades To Existing Homes In BC
BC Building Envelope Council conference presentation by BC Ministry of Energy describes the energy assessment tool, energy performance of single family houses in BC, recommended efficiency upgrades, actual upgrades implemented, and lessons learned. (PDF)

Berkeley Lab: Saving 70% Or More Energy With Deep Energy Retrofits
Berkeley Lab study concluded that overall, deep energy retrofits on test homes had energy reductions ranging from 31 to 74 percent.

GBA: Big Rewards Of A Deep Energy Retrofit
Green Building Advisor describes why calculating just the financial return on investment of deep energy retrofits may be missing the whole story.

GBA: How To Calculate The Value Of Energy Improvements
Green Building Advisor discusses the challenge of measuring energy savings when justifying the cost of retrofit measures with so many variables at play.

GBA: Number Crunching On A Deep Energy Retrofit
Green Building Advisor summarizes an owner-builder's detailed look at how a retrofit added long-term value to his home.

GBA: Payback Calculations For Energy-Efficiency Improvements
Green Building Advisor describes how to choose the best way to look at your investments energy-efficiency improvements to your home, by performing a simple payback analysis and calculating net present value.

LBL: Single-Family Deep Energy Retrofit Performance In US
Lawrence Berkeley National Laboratory report A Meta-Analysis of Single-Family Deep Energy Retrofit Performance in the US provides estimates of the potential of deep energy retrofits to address energy use in existing homes across climate zones that can be used in future estimates of the technical potential to reduce household energy use and greenhouse gas emissions. (PDF)

NREL: US National Residential Efficiency Measures & Costs Database
US National Residential Efficiency Measures Database is a publicly available, centralized resource of residential building retrofit measures and costs for the US building industry. It will help users determine the most cost-effective retrofit measures for improving energy efficiency of existing homes.

Remodeling Mag: Performance-Based Standards Better Than Product Incentives
Remodeling Magazine article says industry insiders believe the major drivers of home-efficiency improvements will soon shift to performance-based incentives and standards.

Suzuki Foundation: Property Assessed Payments For Energy Retrofits
David Suzuki Foundation report Property Assessed Payments for Energy Retrofits examines how local improvement charges can be used to finance energy retrofits, reduce energy use, lower greenhouse gas emissions and save homeowners money on their energy bills. (PDF)

US DOE: How Much Can You Save with Energy Efficient Improvements?
US Department of Energy lists specific actions you can take to save energy and water in your home, along with the potential annual savings for all of them.

US DOE: Post-Retrofit Residential Assessments Of Energy Consumption
US Department of Energy study Post-Retrofit Residential Assessments examined a range of factors influencing energy consumption in households that had participated in residential energy-efficiency upgrades. Most of the cases studied achieved substantial energy savings, although it was more common for the projected savings to be greater than the demonstrated savings. Two factors that played a very large role in savings variation were 1) changes in occupancy and 2) fenestration improvements outside of the incentive programs. Motivation for pursuing the upgrades (e.g., environmental sustainability vs. comfort or cost savings) did not seem to play any role in achieving savings. Participants generally were more concerned with maintaining aesthetics through lighting than comfort through heating or cooling. They also seemed more likely to turn the lights off when leaving a room than to turn the heat off when leaving the home. (PDF)

US DOE: Reducing Energy Use In Existing Homes By 30%
US Department of Energy report Reducing Energy Use in Existing Homes by 30%: Learning From Home Performance with ENERGY STAR, summarizes Building America Research Alliance research project to verify whether homes in the New Jersey HPwES program achieved 30% source energy savings, and if so, what measures were implemented to achieve them. (PDF)
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