It should not be used over tar based products.
Bituminous roofing felt.
One of the longer lasting roofing options for flat roofs is bitumen roofing or a modified bitumen roof.
Bituminous felt is a form of waterproof sheeting that is used to cover flat roofs or as an underlay beneath slate or tile roofing.
It is suitable for use over asphalt felt and metal.
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.
Organic dry felt is made from 100 post consumer recycled material.
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.
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.
Bostik bituminous felt adhesive for roofs is a cold applied solvent borne bituminous adhesive for bonding all types of roofing felt.
These systems are sometimes used to construct roofs in the form of roofing felt or roll roofing products.