Weifang Zhengtai Waterproof Material Co., Ltd. was established in 2001 year with the registered capital of 1 billion , covering area of 60000 square meter .
Modified bitumen membranes combine bitumen and styrene-butadiene-styrene (SBS), a family of synthetic rubber originating from styrene and butadiene. This process modifies the bitumen to create a copolymer with vastly improved elasticity, tensile strength, abrasion resistance, ageing stability and a higher softening point whilst retaining the phenomenal waterproofing performance of bitumen. The SBS modified bitumen is integrated with reinforcing mats consisting of polyester, fibreglass, or a composite of the two, to form the finished membrane
Modified bituminous systems utilise two layers of factory manufactured SBS modified bitumen sheet material. Firstly, an underlayment is applied to your roofing structure, followed by a cap sheet with a mineral slate finish for added UV protection and an improved aesthetic finish.
These are available for either torch-on or self-adhesive roofing applications. The resulting system provides multiple layers of high-performance waterproofing protection.
