APP vs SBS Modified Bitumen Membranes Modified Bitumen Membranes are among the most popular waterproofing materials used in roofing and construction. These membranes are designed to improve flexibility, durability, and weather resistance compared to traditional bitumen. Two common types are APP (Atactic Polypropylene) and SBS (Styrene-Butadiene-Styrene). Understanding their differences is essential when selecting the right […]

