Water Soluble Residue from Asphalt Roofing Products (“Tobacco Juicing”)

Describes origin of tobacco juicing and the effects this residue may have on modified bitumen roofs. Provides ways to minimize/eliminate residue runoff. The formation of a “tobacco-juice” residue, so named for its color, is the normal result of the weathering of all asphalt-based products (i.e., roof coatings,

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Effects of Roof Color and Solar Reflectance on the Accumulation of Moisture in Roof Systems

Introduction: Moisture content within a roofing assembly may fluctuate significantly over the life of the roof depending on a variety of factors including, but not limited to: moisture in the existing roof assembly at time of installation; interior and exterior temperatures; interior and exterior humidity conditions; deck

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ARMA Lightweight Structural Concrete Roof Decks Statement

Decks may not be suitable for durable, sustainable roofing systems The roofing industry is increasingly experiencing roof system performance issues when roof systems are installed over lightweight structural concrete roof decks. The high moisture content of these decks, coupled with long drying times and an inability to

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Recommendations for Application of Asphalt Shingles on Steep Slopes and Mansard Construction

Defines the maximum slope for normal shingle application and suggests different installation methods for slopes beyond that maximum. Over the last few years, architectural design trends have resulted in radical departures from normally accepted roofing concepts. Roof slopes, especially in mansard design, have been increased to the

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