GPL-15 Liner
GPL-15 is a 15 mil heavy-duty green polyolefin sheet engineered to function as a vapor retarder, root barrier, and membrane liner in slab, planter, and vegetative roof applications. Its robust design controls moisture migration, resists puncture, and supports long-term durability in demanding construction & waterproofing assemblies.
Where to Use
- Root Barrier Use — As a root barrier in planter and vegatative roof assemblies (installed over waterproofing and under drainage).
- Under-Slab Vapor Retarder — As an under-slab vapor retarder over tamped earth, sand or aggregate base to control vapor migration.
- Barrier Layer — As a barrier layer against soil gases (radon, methane), sulphates and other soil-borne contaminants when properly detailed.
GPL-15 is often used with
- System 500
- System 520
- System 570
- System 580
- System 590 (in special occasions)
Key Features
- Ultra-Low Water-Vapor Transmission — Helping to mitigate moisture migration through concrete slabs.
- Root Inhibitor Layer — Serves as a root inhibitor layer in extensive green roofs and planters (for herbaceous plantings), protecting waterproofing systems.
- Durable & Long-Lasting — Exceptional puncture and tensile strength for high jobsite performance and installation resilience.
- Large Rolls — Large-format roll size for fewer seams and faster installation coverage.
- Compatible — Compatible with AVM system details and accessories for seamless integration (seams, penetrations, terminations).
Material
- Sheet (heavy-duty green polyolefin engineered sheet)
System
- Used as a component in below-grade and above-grade waterproofing systems as a root barrier