Self-adhesive Butyl Waterproofing Sheet
Self-adhesive waterproof sheet for building exterior walls, rooftops, and underground structures. Provides a continuous moisture barrier with exceptional peel strength and durability.
Key Specifications
| Width | 1,000mm ~ (Custom) |
| Thickness | 1mm ~ 2mm |
| Peel Strength | ≥ 10 N/25mm |
| Operating Temp | -40°C to +120°C |
| Roll Length | 10m / 20m |
Product Overview
Garmy Butyl Sheet is a large-format self-adhesive waterproofing membrane designed for broad-area coverage in construction applications. Its dual-layer structure combines a butyl rubber adhesive layer with a protective backing for enhanced mechanical strength. Ideal for rooftop waterproofing, below-grade moisture barriers, and exterior wall vapor control.
Key Features
- ✓Self-adhesive butyl adhesive layer + functional HDPE film
- ✓Full-surface adhesion without mechanical fasteners
- ✓Cold-applied — no torch or heat required
- ✓Excellent elongation for crack-bridging capability
- ✓Resistant to root penetration for green roof applications
- ✓UV-stabilized top surface option available
- ✓Compatible with concrete, metal, and wood substrates
- ✓KS F 4935 compliant
Technical Specifications
All specifications tested per ASTM / KS standards. Custom formulations available upon request.
| Application | Specific Gravity | Heat Resistance | Cold Resistance |
|---|---|---|---|
| Building structures (rooftops, underground parking, upper slabs) / Civil structures (underpasses, subways, utility tunnels) / Other structures requiring waterproofing (metal, wood, panel) | 1.40 – 1.65 | 120°C | -40°C |
Applicable Standards
Relevant test methods and compliance standards by region.
| Region | Standards |
|---|---|
| US |
|
| AU / NZ |
|
| EU |
|
| UK |
|
| Japan |
|
Industry Applications
Self-adhesive Butyl Waterproofing Sheet is trusted across major industries for its versatility and reliable performance.
Construction
Full-surface waterproofing membrane for rooftops, basements, and building envelopes.
- •Flat roof waterproofing
- •Below-grade foundation walls
- •Exterior wall moisture barrier
- •Green roof base layer
- •Tunnel lining waterproofing
Quality Certifications
All Garmy products are manufactured under internationally recognized quality management systems.
Related Technical Content
Learn more about this product through our technical articles and guides.
Condensation Control in the Building Envelope: A Butyl Tape Application Guide
Most envelope condensation problems are air leakage problems, not insulation problems. This guide explains dew point and interstitial condensation, how the air barrier and vapour control layer differ, where butyl sealing tape belongs in the assembly, and the installation principles that decide whether a taped detail lasts twenty years or two.
Butyl Tape for Railway Rolling Stock Sealing: An Application Guide
Where butyl tape seals a rail vehicle and how to specify it. Covers carbody skin joints, glazing perimeters and roof penetrations, the vibration and noise duty cycle that non-curing butyl handles well, and the fire-safety documentation route through EN 45545 and UL94 V-0 flame-retardant compounds.
ESG, Carbon Footprint Reporting, and What Buyers Now Ask Butyl Suppliers
Customer ESG commitments no longer stop at the factory gate — they cascade down to sealing-material suppliers as Scope 3 data requests, product carbon footprint questionnaires, and supply chain due diligence audits. This guide explains what those requests actually require, what a butyl manufacturer can and cannot substantiate, and how to evaluate a supplier before the next reporting cycle.
Related Products
Other solutions from our butyl rubber product line
Butyl Compound
High-performance waterproof sealing raw material. Our flagship butyl rubber compound is formulated for superior adhesion, flexibility, and weather resistance across demanding industrial environments.
View Details →
Butyl Tape
Self-adhesive waterproof sealing tape for window frames, roofing joints, and electronics insulation. Long-term UV and chemical resistance for demanding environments.
View Details →
Vibration Damping Pad
Anti-vibration pad engineered for automotive roof panels, fender linings, and HVAC systems. Reduces NVH (noise, vibration, harshness) with consistent performance across temperature extremes.
View Details →