
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.

Automotive Sound Deadening with Butyl Tape: Installation Guide
A hands-on guide to automotive sound deadening with butyl tape. Covers how constrained-layer butyl damps door, floor, and roof panel vibration, the correct surface-prep and roller-press installation method, and the measurable NVH improvement for aftermarket and OEM procurement teams.

Butyl Rubber Supply Chain Localization & Nearshoring Trends
A sourcing-strategy view of how butyl rubber supply chains are being reshaped: the shift toward localization and nearshoring, stronger regional procurement, the role of Korean suppliers, and what reshoring and supplier diversification mean for procurement teams. All trend figures are public-data estimates, presented as directional context rather than guarantees.

Butyl Tape in Construction: Adoption Trends Replacing Sealants & Bitumen
Why the construction industry is steadily shifting from liquid sealants and bitumen to butyl sealing tape — driven by installation efficiency, batch-to-batch quality consistency, and the spread of prefabricated and airtight building methods. A market-analysis read of the adoption drivers, with industry-estimate figures clearly flagged.
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 →