Bitumen Waterproofing Membranes: Complete Product Guide
Bitumen Membranes
Bitumen membranes are flexible, durable waterproofing sheets made from:
- Base Material: Fiberglass/polyester reinforcement
- Waterproof Layer: Oxidized or polymer-modified bitumen
- Surface Protection: Mineral granules, foil, or sand
Key Advantages
20+ year service life
Excellent UV and weather resistance
Self-healing properties for minor punctures
Compatible with most construction substrates
Product Types & Technical Specifications
SBS (Styrene-Butadiene-Styrene) Modified Membranes
Features:
- High elasticity (up to 1500% elongation)
- Superior cold-weather performance (-30°C to +110°C)
- Thickness: 3mm, 4mm, 5mm options
Technical Data:
| Parameter | Value | Test Standard |
| Tensile Strength | ≥600 N/5cm | EN 12311-1 |
| Elongation at Break | ≥40% | EN 12311-1 |
| Heat Resistance | 110°C (2h, no slip) | EN 1110 |
| Low-Temp Flexibility | -25°C (no cracks) | EN 1109 |
Applications:
- Roof waterproofing (flat/sloped)
- Underground structures
- Bridge decks
APP (Atactic Polypropylene) Modified Membranes
Features:
- Higher heat resistance (up to 130°C)
- Excellent UV stability (no need for protective layers)
- Thickness: 3mm-5mm
Technical Data:
| Parameter | Value | Test Standard |
| Tensile Strength | ≥800 N/5cm | EN 12311-1 |
| Dimensional Stability | ≤1.5% @80°C | EN 1107 |
| Water Absorption | ≤1.0% (24h) | EN 14223 |
Applications:
- Exposed roofing
- Solar panel underlayment
- Industrial facilities
Self-Adhesive Membranes
Features:
- Cold-applied (no torch/heating required)
- Butyl rubber-based adhesive layer
- Thickness: 2mm-3mm
Technical Data:
| Parameter | Value | Test Standard |
| Peel Strength | ≥1.5 N/mm | EN 12310-1 |
| Shear Resistance | ≥0.3 N/mm² | EN 12039 |
| Application Temp | +5°C to +40°C | – |
Applications:
- Residential basements
- Balcony waterproofing
- Renovation projects
Installation Guidelines
Surface Preparation
- Clean substrate (≤3mm irregularities)
- Prime concrete with bitumen primer (0.2-0.3 kg/m²)
- Allow primer to cure (2-24 hours)
Installation Methods
| Type | Technique | Temperature Range |
| Torch-On | Propane torch heating | +5°C to +50°C |
| Self-Adhesive | Peel-and-stick | +5°C to +40°C |
| Hot-Mop | Bitumen kettle application | +150°C to +180°C |
Overlap Requirements
- Side laps: 8-10cm
- End laps: 15cm
- Reinforcement at details (pipes, corners)
Packaging & Coverage
| Product Type | Roll Dimensions | Coverage (per roll) | Weight |
| SBS 4mm | 1m x 10m | 10m² | 45-50kg |
| APP 3mm | 1m x 15m | 15m² | 40-45kg |
| Self-Adhesive 2mm | 1m x 20m | 20m² | 30-35kg |
Packaging Options:
- Standard rolls (plastic-wrapped)
- Wooden pallets (20 rolls/pallet)
- Custom widths available (0.5m-2m)
Performance Comparison
| Characteristic | SBS Membrane | APP Membrane | Self-Adhesive |
| Flexibility | ★★★★★ | ★★★☆ | ★★★★ |
| Heat Resistance | ★★★☆ | ★★★★★ | ★★☆☆ |
| Installation Speed | ★★★☆ | ★★★★ | ★★★★★ |
| Cost Efficiency | ★★★☆ | ★★★☆ | ★★★★ |
Maintenance & Warranty
- Inspection: Biannual checks for punctures
- Repairs: Use compatible patching compound
- Warranty: 10-25 years (varies by product)
Why Choose Our Membranes?
- ISO 9001 & CE Certified
- Custom formulations for extreme climates
- Technical support from design to installation
