Description
GR100 S/A Self-Adhesive Bituminous Vapour Barrier – Pallet Rate
GR100 S/A is a high-performance self-adhesive bituminous vapour barrier designed to deliver reliable vapour and gas protection across a wide range of construction applications. Supplied at pallet rate pricing, it offers a cost-effective solution for large-scale projects, commercial developments and moisture-sensitive environments.
- Best for: commercial builds, large construction projects and high-moisture environments
- Compatible with: LIQUIFLEX PRO and polyurethane waterproofing systems
- Typical uses: vapour control layers (VCL), gas barriers and protected waterproofing build-ups
Key Benefits
- Pallet rate savings: reduced cost per roll when purchasing in bulk.
- Total vapour & gas barrier: helps prevent moisture vapour and contaminants from entering the structure.
- Cold-applied & self-adhesive: flame-free installation with no torches or hot works required.
- Reinforced durability: composite aluminium foil with fibreglass mat for high puncture resistance.
- Waterproof & self-sealing: forms a continuous, sealed membrane when correctly installed.
- Walk-on strength: suitable for profiled metal decks and temporary site traffic.
Where This Vapour Barrier Is Used
GR100 S/A vapour barrier membrane is commonly specified where a dependable vapour control layer or self-adhesive gas barrier is required. It can be installed onto concrete substrates, OSB or plywood decks and profiled metal decks, making it suitable for roofing systems and protected waterproofing applications where flame-free installation is preferred.
Specifications
- Roll size: 30m x 915mm
- Thickness: 0.6mm
- Roll weight: 21kg
- Pallet quantity: 15–20 rolls
- Storage: store upright in a cool, dry place, out of direct sunlight
Installation Overview
- Prepare: ensure the substrate is clean, dry, sound and free from contaminants.
- Prime (recommended): apply VCL Primer to enhance adhesion, particularly in cold or damp conditions.
- Apply: roll out the membrane while removing the release film and applying firm pressure.
- Seal: ensure all laps, edges and penetrations are fully sealed.
Tip: Using the recommended primer improves installation reliability on challenging substrates. For technical advice, call 01268 472358.
What You Get
- GR100 S/A Self-Adhesive Bituminous Vapour Barrier supplied in bulk pallet quantities
- Roll format: 30m x 915mm
- Optional add-on: VCL Primer (5L)
Quick FAQs
What is GR100 S/A used for?
GR100 S/A is used as a vapour control layer (VCL) and gas barrier membrane to help manage moisture vapour transmission in construction build-ups.
Is this a flame-free system?
Yes. The membrane is cold-applied and self-adhesive, so no torches or hot works are required.
Is a primer required?
A primer is strongly recommended to improve adhesion, especially in cold, damp or dusty conditions.
How should the rolls be stored?
Rolls should be stored upright in a cool, dry location, protected from direct sunlight.
Recommended Add-On providing optimum adhesion
VCL Primer is the recommended bonding solution for GR100 S/A, helping to improve adhesion and installation performance.
- High bond strength: supports adhesion on vertical and horizontal surfaces
- Quick drying: speeds up installation
- Low solvent content: reduced emissions
- Pack size: 5L container
Downloads
Need advice? Call 01268 472358 for vapour barrier and system support.
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