2 Ply Modified Bitumen Roofing Details

Bitumen roofing is also available in 1 2 or 3 ply.

2 ply modified bitumen roofing details.

Dynamax smooth is used as a premium fiber glass polyester reinforced modified bitumen base ply or cap sheet in a variety of multi ply roofing systems. Astm e 1592 physical testing was performed on three test roof assemblies in. 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. High quality sbs rubber and asphalt blend.

It was developed as a means to improve roofing membranes when product quality was affected by the use of a lower quality crude oil by product. Get to know more about one of the most popular commercial roofing systems. Firestone sbs modified bitumen roofing systems incorporate a synthetic rubber based technology which yields exceptional flexibility even in extremely low temperatures. 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. Developed in europe in the mid 1960s modified bitumen roofing has been used in canada and the united states since about 1975. Lends elasticity and flexibility to the sheet. Sbs modified bitumen construction details.

Learn about modified bitumen sbs roofing systems. 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 roof systems can be installed with the common torch method asphalts or cold adhesives. Multi ply sbs modified bitumen roofing lightweight insulating concrete paradiene 20 30 nvs insulation.

The drawings linked on this page are intended to represent a variety of sbs modified bitumen membrane roof system applications while remaining generic with regards to manufacturers specific application specifications. 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. Wind uplift is a primary concern when installing a retrofit single ply roof system rsprs over a structural metal panel roof.