2 Ply Modified Bitumen Roofing

Modified bitumen roof systems can be installed with the common torch method asphalts or cold adhesives.

2 ply modified bitumen roofing. Osb roof sheathing 7 16 inch thick approximate weight. Modified bitumen roofing systems there are two types of modified bitumen membranes app and sbs. Modified bitumen 2 ply membrane. The 2 part system consists of a base layer and a cap layer.

App is a smooth surfaced membrane that is torched to an acceptable substrate and then coated to protect it from the uv. Asphaltic roofing solutions 101 asphalt is one of the oldest roofing technologies still in use today and it is a reliable solution for both residential and commercial roofing needs. Additionally henry lowslope two ply self adhered waterproof roll roofing is used as a two ply roofing sheet for exposure to various weather conditions. A standard sbs modified bitumen roof system is a two ply system applied in rolls that overlap the edge of the previous roll.

It is made up of a bitumen covered membrane which is composed of either. Modified bitumen is a 2 part low slope roof system that is made when polymers are added to asphalt to change its properties. Learn about the variety of installation methods and roofing system options including bur built up roof sbs and app. The product self adheres with a granulated top service.

Gypsum roof board 1 2 inch thick. The base layer provides waterproofing and a surface for the cap to bond to. 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. 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.

The modified bitumen membrane sheeting is the main element of the roofing system and it is made from an infusion of polyester fiberglass or a combination of both. Ice and water shield self adhering. Apa the engineered. App membrane is applied using an open flame touch while sbs is hot mopped or adhered using a cold processive adhesive.

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. The insulation layer provides its r value or thermal resistance that limits the movement of heat passing between the roofing structure.