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Nodified bitimin roof.
Modified bitumen is a 2 part low slope roof system that is made when polymers are added to asphalt to change its properties.
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.
It is made up of a bitumen covered membrane which is composed of either.
Developed in europe in the mid 1960s modified bitumen roofing has been used in canada and the united states since about 1975.
Modified bitumen flat roofing is a single ply system made of asphalt bitumen modified with polymers and reinforced with fiberglass and or polyester.
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.
But flat roof is a convenient term for a class of multimembrane systems with very shallow pitches.
Modified bitumen flat roofs this manufactured asphalt based flat roofing is durable resistant to damage and easy to repair.
No roof should be completely flat or it won t shed water.
The base layer provides waterproofing and a surface for the cap to bond to.
The 2 part system consists of a base layer and a cap layer.