Modified Bituminous Membrane Roofing System

Developed in europe in the mid 1960s modified bitumen roofing has been used in canada and the united states since about 1975.

Modified bituminous membrane roofing system. This paper explores the similarities and differences between the three relevant versions of asce 7 and the roofing industry developed methods to determine loads. Surfacings can include mineral granules copper aluminum or aggregate. 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. These days buildings are made from incredibly light weight structural materials.

Application of this type of roofing is less labor intensive than the built up roofing method that applies several layers to create a waterproof membrane. This ensures far greater flexibility than traditional bur roofing systems. Simply put it uses modified bitumen membrane roofing sheets made from asphalt. Modified bitumen roofing has been around since the 1970s when it was developed to address ongoing issues with traditional asphalt roofs.

Modified bitumen roofs have been used in the u s. Wind design for roof systems has become much more challenging for roof system designers and roofing contractors. Tpo roofs have been around since the 1990s. App membrane is applied using an open flame touch while sbs is hot mopped or adhered using a cold processive adhesive.

Like built up roofing bur it is usually installed on low slope and flat roof structures. Learn about modified bitumen sbs roofing systems. 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. There are two types of modified bitumen membranes app and sbs.

Modified bitumen is a common flat roofing system that consists of asphalt with added modifiers to give it a rubber like quality. App is a smooth surfaced membrane that is torched to an acceptable substrate and then coated to protect it from the uv. Firestone sbs modified bitumen roofing systems incorporate a synthetic rubber based technology which yields exceptional flexibility even in extremely low temperatures. Modified bitumen roofing systems.

Modbit membrane rolls come in 36 39 widths and cover an area of approximately 100 square feet. These are either modified with rubber sbs or with plastic app.