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.
Bituminous roofing felt.
The substance itself is made from bitumen which comes from the distillation of crude oil that has been either mixed with sand or crushed limestone.
It should not be used over tar based products.
Roofing felt is comprised of a base made from natural materials such as wood cellulose or synthetic ones such as fiberglass or polyester and then coated or saturated with a protective coating such as bitumen asphalt which repels water but still allows the product to breathe.
Bituminous waterproofing systems are designed to protect residential and commercial buildings bitumen asphalt or coal tar pitch is a mixed substance made up of organic liquids that are highly sticky viscous and waterproof.
These systems are sometimes used to construct roofs in the form of roofing felt or roll roofing products.
It is suitable for use over asphalt felt and metal.
One of the longer lasting roofing options for flat roofs is bitumen roofing or a modified bitumen roof.
Bostik bituminous felt adhesive for roofs is a cold applied solvent borne bituminous adhesive for bonding all types of roofing felt.
Bitumen roof advantages and disadvantages.