2 Ply Mod Bit Roofing

Mod bit roofing is considered a single ply roof system although there are layers involved in mod bit roofing because of the base sheet or recommended underlayment it is considered a singly ply not a built up roofing system.

2 ply mod bit roofing.

2 modified bitumen roofing membranes table of contents 1 1 general description technical assistance suitable applications acceptable decks surfaces. Bitumen roofing is also available in 1 2 or 3 ply. Modified bitumen 2 ply membrane. Gypsum roof board 1 2 inch thick.

Wind uplift is a primary concern when installing a retrofit single ply roof system rsprs over a structural metal panel roof. Liberty sbs self adhering base ply sheet is a self adhering roofing membrane designed to be used as either a base sheet or a ply sheet in your modified bitumen roofing system providing long lasting protection for low slope roofs. Modified bitumen roofing has been around since the 1970s when it was developed to address ongoing issues with traditional asphalt roofs. To minimize the chance of roofing system failures always remember to consider the quality of material being used.

Multi ply sbs modified bitumen systems. Osb roof sheathing 7 16 inch thick approximate weight. Apa the engineered. In the late 1960s siplast research and development working in conjunction with shell chemical of europe developed sbs styrene butadiene styrene modified bitumens.

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. Specification r406 2 two ply dibiten poly 4 poly 5 specification r456 2 r456 2 fr two ply poly 4 poly 4 5. Multi ply sbs modified bitumen systems. Two of the commercial flat roof systems commonly found in the northeast are modified bitumen and thermoplastic polyolefin tpo.

This technology was applied to the design of our two ply engineered roof systems in which the. Ice and water shield self adhering. This form of roofing does not eliminate the need for insulation or proper drainage. Astm e 1592 physical testing was performed on three test roof assemblies in order to determine the wind uplift resistance of an rsprs installed over existing structural metal panel roof systems fastened directly into purlins.