InsuLight
Lightweight APP polymer-modified bitumen membrane engineered for dependable waterproofing where reduced weight per square metre matters.
Engineered for the job it protects.
InsuLight is an APP polymer-modified bitumen membrane manufactured through Insutech's high-tech calendering process, combining dependable waterproofing performance with a reduced weight per square metre.
Reinforced with a non-woven carrier and finished with a thermo-fusible burn-off film on the underside, InsuLight installs by torch-on application and bonds securely to concrete, metal, and other prepared substrates.
- APP modified bitumen for reliable heat and UV resistance
- Reduced weight for easier handling and faster installation
- Absolute impermeability to water with high chemical resistance
- Torch-on application for secure adhesion and seamless coverage
The underside of the membrane is laminated with a thin, thermo-fusible polyethylene burn-off film to ensure efficient torch application and optimal adhesion. The membrane is available with a wide range of upper surface finishes, including multi-colored mineral slates, aluminum foil, sanded finishes, and polyethylene film.
Custom surface options and colors are available on request.
Surface Finish Flyer →Application, Step by Step.
Clean the substrate of dust, debris and standing water, then repair any cracks or voids so the membrane can bond to a sound, even surface.
Apply a bituminous primer evenly across the whole surface and allow it to dry completely before any membrane work begins on the area.
Unroll and align the membrane on the primed surface, allowing the specified side and end overlaps before any bonding takes place.
Heat the burn-off film with a propane torch while progressively unrolling, pressing the membrane firmly onto the prepared substrate.
Torch and seal every overlap with a rounded trowel, checking each joint to achieve continuous, fully watertight seams across the surface.
Finish upstands, drains and penetrations with reinforcing details, then protect the membrane before backfilling, screeding or tiling.
