APP (Atactic polypropylene) consists of an asphalt plasticizer reinforced with mats to create a waterproofing membrane. The systems are “Torched” welded in a multitude of configurations to meet your budget and life expectations.
Repairs to atactic-polypropylene modified-bitumen membranes.
Multi-ply patches and details that restore membrane strength.
Re-sealing laps, curbs, and penetrations where leaks begin.
Repairs matched to your existing assembly for a lasting bond.
Targeted restoration that avoids the cost of full replacement.

