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Basics & Theory

AAMA: Daylighting Basics & Energy Savings
American Architectural Manufacturers Association daylighting fact sheet provides a clear distinction between side-lighting, which includes products installed primarily vertically such as windows, doors, curtain walls and storefronts, and top-lighting, which includes products installed primarily overhead such as skylights, roof windows and tubular daylighting devices.

NRCan: Energy-Efficient Residential Windows, Doors & Skylights
NRCan describes energy efficient windows, doors and skylights including changes to Energy Star specification, fenestration as a system, windows, doors, skylights, climate zones, summary of qualifications, buying tips, installer certification, and information for manufacturers/dealers.
Information Sources

Sill To Sash: Complete Guide To Windows & Doors
Sill To Sash describes windows, doors and skylights and all the factors relating to choosing a well-installed, top quality, energy-efficient product. All this information has been prepared for and vetted by the leading associations in the fenestration industry.
Issues & Performance

CSA: AAMA/WDMA/CSA 101/I.S.2/A440-08 Standard/Specification For Windows, Doors & Skylights
Canadian & US AAMA/WDMA/CSA 101/I.S.2/A440-08 Standard Specification establishes material-neutral, minimum, and optional performance requirements for windows, doors, and unit skylights. $68 CDN

NRC: Performance of Tubular Daylighting Devices
Canadian National Research Council report Performance of Tubular Daylighting Devices shows they can economically admit natural light into areas of buildings that do not have windows or skylights. It outlines features and characteristics, presents research findings that will improve the ability of manufacturers to design and rate their products, and helps specifiers select best-performing products for particular locations and installation geometries. (PDF)

NRCan: Labelling & Promotional Guidelines For Energy Star Qualified Windows, Doors & Skylights
Natural Resources Canada guidelines provide detailed information on how to label windows, doors and skylights for the Canadian Energy Star program and how to develop and use promotional materials for qualifying windows, doors and skylights in Canada. (PDF)

RCI: Thermal Loss Vs Electrical Savings From Daylighting
RCI article says besides decreasing roof surface temperatures, reflective roofing systems also increase reflective light levels for high-performance daylighting applications, increasing their efficiency while putting the roof to work for owners and occupants. (PDF)

US DOE: Overview Of Energy Efficient Skylights
US Department of Energy resource site provides tips for maximizing skylight energy efficiency and performance including design, selection, installation, and links to more info.

Energy Vanguard: Benefits & Drawbacks Of Skylights
Energy Vanguard says if you are not aware that when incorporating skylights into a home you can end up with high energy bills, rooms that are unusable at certain times of the year, or expensive repairs due to moisture problems.

Fine Homebuilding: Insulated Skylight Shaft
Fine Homebuilding says if you have or plan to install a skylight in your home, get the insulation details right to avoid problems with comfort and condensation.

GBA: Are South-Facing Skylights A Threat Or Menace?
Green Building Advisor describes how owners of sunrooms have developed a variety of ways to address their buyers' regret. In winter, the sunroom is cold. In summer, the sunroom is hot.

HBC: Performance Of Tubular Daylighting Devices
Home Builder Canada magazine says compared to conventional skylights, tubular daylighting devices have the advantages of energy savings, lower solar heat gains, and relative ease of installation.

IRC: Free Software For Calculating Daylighting Of Skylights
Canadian Institute for Research in Construction offers SkyVision, a free Windows-based software tool to calculate the optical and daylighting performance of various shapes and types of conventional and tubular skylights. (PDF)

JLC: Installing Skylights & Flashing
Journal of Light Construction article from their Guide to Moisture Control gives tips on the right way to install skylights and flashing. (PDF) Free Registration Required

RCI: Building Science of Skylights & Sloped Glazing Systems
RCI online slide show presentation by RDH describes what skylights are, critical barriers, and an illustrative case study. (PDF)

US DOE: Existing Skylights Repaired or Replaced and Fully Flashed
US Department of Energy describes issues and considerations for retrofitting an existing skylight to improve water resistance and improve performance.

US DOE: Insulating Skylight Shaft Walls
US Department of Energy describes issues and considerations for installing insulation and an air barrier around skylight shafts.

Waterloo Univ: Construction Detail Of Flashing For Skylights
University of Waterloo drawing shows construction details for proper flashing of a skylight.
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