Butyl 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 ~ 1,500mm |
| Thickness | 1.2mm ~ 2.0mm |
| Peel Strength | ≥ 10 N/25mm |
| Operating Temp | -30°C to +80°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
- ✓Dual-layer structure: butyl adhesive + reinforced backing
- ✓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.
| Grade | Application | Specific Gravity | Peel Strength (N/25mm) | Heat Resistance | Cold Resistance |
|---|---|---|---|---|---|
| BS-12 | Rooftop waterproofing membrane | 1.30 ± 0.1 | 12.8 | 80°C | -30°C |
| BS-20 | Underground structure waterproofing | 1.45 ± 0.1 | 15.3 | 80°C | -30°C |
| BS-UV | Exposed rooftop (UV-stabilized) | 1.35 ± 0.1 | 11.5 | 90°C | -30°C |
Industry Applications
Butyl 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
Technical Documents
Download product datasheets, safety data sheets, and certification documents.
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