The base layer provides waterproofing and a surface for the cap to bond to.
Nodified bitimin roof.
It is made up of a bitumen covered membrane which is composed of either.
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.
Modified bitumen flat roofing is a single ply system made of asphalt bitumen modified with polymers and reinforced with fiberglass and or polyester.
The 2 part system consists of a base layer and a cap layer.
But flat roof is a convenient term for a class of multimembrane systems with very shallow pitches.
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.
At one time built up roofs burs.
Modified bitumen was developed in europe during the 1960s and it is a rendition of the old built up roofing bur system.
No roof should be completely flat or it won t shed water.
Get free shipping on qualified sbs modified bitumen roll roofing or buy online pick up in store today in the building materials department.
Modified bitumen is a 2 part low slope roof system that is made when polymers are added to asphalt to change its properties.