2 Ply Modified Bitumen Roofing

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2 ply modified bitumen roofing.

Ice and water shield self adhering. Two of the commercial flat roof systems commonly found in the northeast are modified bitumen and thermoplastic polyolefin tpo. Astm e 1592 physical testing was performed on three test roof assemblies in. Modified bitumen 2 ply membrane.

Learn about modified bitumen sbs roofing systems. Osb roof sheathing 7 16 inch thick approximate weight. There are two types of modified bitumen membranes app and sbs. The 1 ply material is not durable and if used can pose certain problems such as breaking down prematurely while the 2 and 3 ply material roofs cost significantly more to install which can make this one of the most costly types of flat roofing products around.

Wind uplift is a primary concern when installing a retrofit single ply roof system rsprs over a structural metal panel roof. A standard sbs modified bitumen roof system is a two ply system applied in rolls that overlap the edge of the previous roll. Modified bitumen roofing has been around since the 1970s when it was developed to address ongoing issues with traditional asphalt roofs. Bitumen roofing is also available in 1 2 or 3 ply.

Available in a variety of thicknesses in smooth and granule surfaces sbs membranes may be installed in hot asphalt cold adhesive or may be heat welded. 8 2 test data 3 modified bitumen roofing membranes 6 1 new roofs dibiten poly 4 poly 5 specifications nailable decks specification 401 no insulation specification 402 insulation specification 401 2 two ply no insulation specification 402 2 two ply insulation non nailable decks specification 403 no insulation. Tpo roofs have been around since the 1990s. Firestone sbs modified bitumen roofing systems incorporate a synthetic rubber based technology which yields exceptional flexibility even in extremely low temperatures.

Both can be used on commercial roofs and the best choice often depends on the business owners roofing needs and goals. Gypsum roof board 1 2 inch thick. To minimize the chance of roofing system failures always remember to consider the quality of material being used. Commercial roofing metal roofs modified bitumen and high performance building envelope solutions from the garland company.

Following are some photos of a recent 2 ply modified bitumen membrane roofing system installation along with new eavestrough gutters installed by toronto roofing ca. Modified bitumen roof systems can be installed with the common torch method asphalts or cold adhesives.