Modified Roofing Paper

If you install the smooth product cover it with aluminum coating.

Modified roofing paper.

Today modified bitumen mb is king with cap membranes torched on to fuse them to fiberglass reinforced interplies or base coats. When it comes to estimating the weight of an existing roof field verification of the in place construction is necessary. Modified bitumen roofing may have a granular surface as shown here or it may be smooth. Depending on local weather waterproof underlayment may be recommended.

Its main purpose is to prevent moisture from leaking into a roof. The numbers ihad a correlation to the weight not the thickness. A built up roof for example will typically include the built up membrane itself with or without gravel as well as some kind of insulation and cover board which will vary in thickness from roof to roof. The type of substrate and the performance objectives influence the specification of the modified bitumen membrane system.

How to install torch down modified bitumen roofing. Modified bitumen roofing is also very rugged and can sustain a fair amount of foot traffic. 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. 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.

The torch down installation method and a peel and stick installation. Cold process modified bitumen roll roofing is another way to apply rolled roofing other than hot mopping or torching. There are two main forms of modified bitumen roofing installation. These steps show a torch down method which looks a bit scary but actually is not too difficult.

Roofing felt also called roofing felt paper is underlayed on roofs before shingles are added. The standard types of felt are 15 and the more waterproof 30. Stick roofing material that installed correctly should last many years. At one time built up roofs burs once represented half of all flat roof coverings.

Burs consisted of alternative layers of heavy building paper and hot tar. Felt paper is applied across the entire roof deck. The term cold applied is referring to o. Synthetic underlayment technically non bitumen synthetic underlayment is the preferred underlayment of most roofing professionals today.