There are three basic types of underlayment used beneath roofing materials.
Modified bitumen with peel and stick and felt roof system.
There are two main forms of modified bitumen roofing installation.
Asphalt saturated felt underlayment 5 leak barrier 5 peel stick.
How to install torch down modified bitumen roofing.
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Gcp applied technologies grace ice and water shield 36 in.
The material is rolled out while simultaneously being heated with a torch which turns the underside of the membrane into a molten adhesive that forms a waterproof bond to the substrate as it cools.
Ft sbs self adhering cap sheet roll for low slope roofing in shakewood.
Get free shipping on qualified peel stick underlayment underlayments leak barriers or buy online pick up in store today in.
The torch down installation method and a peel and stick installation.
Ft model 5003002.
A an approved peel and stick membrane adhered directly to the roof sheathing.
Self adhering modified bitumen roll roofing is designed for flat roofs with a pitch or 4 12 or less typically found over shed type garages and second floor porches.
A complete roof system is more than just the final roofing material.
Roll self adhered roofing underlayment 225 sq.
Depends on whether the bitumen is modified with app or sbs.
App modified bitumen is typically torch applied.
Gaf liberty 3 ft.
Install heavy roofing felt with overtop your decking.
Mechanically attached base sheet is a durable modified bitumen membrane designed and manufactured to meet industry and code requirements.
Ensure your flat roof is entirely clear of debris.
Modified bitumen roofs have a lot of advantages over other types of membrane roofing and are often seen as the modern alternative to the built up roof.
C minimum 4 inch wide peel and stick tape over all seams in the roof sheathing covered by an approved underlayment astm 30 felt or an approved synthetic.
Asphalt saturated felt.
Sbs modified bitumen usually comes with the option of cold adhesive or peel and.
Here are five interesting facts about modified bitumen roofing systems.
Modified bitumen is a type of asphalt product that can be applied in a number of ways to the roof in both hot and cold temperatures.
Due to the inherent danger of fire especially around felting and petroleum products the torch down method of installation for modified bitumen roofing should only be performed by a qualified roofer.
The latest product is the easiest yet essentially a peel and stick roofing material that installed correctly should last many years.
Get to know more about one of the most popular commercial roofing systems.
Learn about modified bitumen sbs roofing systems.
B an approved peel and stick membrane adhered to roofing felt mechanically fastened to the roof sheathing.