2 Ply Mod Bit Roofing

Multi ply sbs modified bitumen systems.

2 ply mod bit roofing.

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. Bitumen roofing is also available in 1 2 or 3 ply. Specification r406 2 two ply dibiten poly 4 poly 5 specification r456 2 r456 2 fr two ply poly 4 poly 4 5.

This form of roofing does not eliminate the need for insulation or proper drainage. Ice and water shield self adhering. Modified bitumen 2 ply membrane. 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.

In the late 1960s siplast research and development working in conjunction with shell chemical of europe developed sbs styrene butadiene styrene modified bitumens. 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. 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.

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. 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. Osb roof sheathing 7 16 inch thick approximate weight. 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.

Modified bitumen roofing has been around since the 1970s when it was developed to address ongoing issues with traditional asphalt roofs. Firestone sbs modified bitumen roofing systems incorporate a synthetic rubber based technology which yields exceptional flexibility even in extremely low temperatures. Apa the engineered. 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.