Solar reflective roof coatings

Enhancing longevity and efficiency
by John Ferraro

Cool roof coatings have achieved more than 30 years of proven energy savings. However, the federal government and building code bodies have only recently embraced the use of these reflective coatings.

For decades, the Roof Coatings Manufacturers Association (RCMA), the national...

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Reducing Environmental Impact with Coatings

Inadequate insulation and air leakage are leading causes of energy waste in most projects, and coatings selection can play a big role in reducing these inefficiencies. This article examines use of coatings in applications as diverse as cool roofs, air barriers, infrared (IR) reflective pigments, and radiant heat barriers.
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Making Sense of Sprayed Polyurethane Foam

For decades, the U.S. design and construction industry has turned to sprayed polyurethane foam to insulate and air seal buildings. When used as a roofing material, its monolithic nature allows for a seamless, self-flashing application that can keep out water. SPF can also improve energy efficiency, helping building owners...
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Vegetative Roof Waterproofing for Long-term Performance

This article reviews the general advantages—and challenges—of green roofs, including how they fail. It reviews strategies for overcoming those challenges and provides advice for achieving long-term performance from a construction perspective, with an emphasis on waterproofing. Several types of green roof systems and assemblies are discussed, including bituminous, rubberized...
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To Vent or Not to Vent: Q&A

Designers have long used cross-ventilation to minimize the potential for moisture accumulation and condensation in attics and crawl spaces. However, unvented attics have become popular in both residential and commercial applications, pushed by emerging claims of energy savings and moisture control. While these ‘new-style’ attics can be successfully used...
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To Vent or Not to Vent: Tips for insulating vented attics

Designers have long used cross-ventilation to minimize the potential for moisture accumulation and condensation in attics and crawl spaces. However, unvented attics have become popular in both residential and commercial applications, pushed by emerging claims of energy savings and moisture control. While these ‘new-style’ attics can be successfully used...
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