URBAN SEAL WATERPROOFING
APP Membrane Waterproofing
Atactic Polypropylene (APP) modified bitumen waterproofing membranes are extremely heavy-duty, torch-applied sheets designed for critical flat slabs. They are highly favored for concrete roofs, industrial podiums, bridge decks, and subterranean retaining walls needing robust, high-thickness barriers.
Our APP Membrane Systems
- Torch-On Heat Welding: Laying 3mm or 4mm thick polymer-modified asphalt sheets reinforced with polyester mats, fusing them to primed concrete under gas torches.
- Podium & Basement Defense: Extreme load-bearing capability, puncture resistance, and chemical defense, making it perfect for under-soil garden podium layouts.
- Longevity & Flex: Accommodates extensive structural concrete shifts and retains elasticity across high thermal winter/summer NCR cycles.

