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
Read more →For many years, roof discoloration caused by algae has been observed throughout the United States and Canada. The discoloration usually has a brown to black appearance, and may be mistaken for fungus growth, soot, dirt, moss, or tree droppings. Gloeocapsa magma is probably the most prevalent of
Read more →The International Building Code (IBC) and the International Residential Building Code (IRC) require that roofing nails be utilized to fasten asphalt shingles. Proper nailing is essential to good performance. To ensure proper nailing during shingle application it is required that you follow the IBC and IRC
Read more →Introduction Photovoltaic (PV) systems convert sunlight into electricity. These systems have been successfully installed on residential asphalt shingle roofs for many years. The two common attachment methods are rack-mounted and roofintegrated: The latter method is sometimes referred to as building integrated photovoltaics. Framed rigid PV panels/modules are commonly mounted on
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Recommended Practices for Controlling Asphalt Exposures during Tear-Offs of Asphalt Roofs
Read more →Recommended Practices for Controlling Asphalt Exposures during the Installation of Asphalt Products without Using Hot Liquid Asphalt
Read more →Recommended Practices for Controlling Asphalt Fume Exposures during Hot Asphalt Roofing Jobs
Read more →Some Questions And Answers About Short-Term Non-Occupational Exposures To Asphalt Fumes Created During Roofing Jobs
Read more →Built-Up Roofing (BUR) membranes have been in use in North America for more than 100 years. BUR systems predominately consist of alternating layers of asphalt (bitumen) and fiberglass ply felts that create a very durable water resistant membrane. The number of plies within a cross section of
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