What Is a Built Up Roof Membrane?
A Built Up Roof (BUR) membrane is a traditional roofing system commonly used on commercial and industrial buildings. It consists of multiple layers of roofing felt, asphalt, and other materials, creating a durable and waterproof surface. This system is well-known for its excellent protection against harsh weather, UV rays, and mechanical damage, making it one of the most reliable roofing options available.
| Feature | Description |
|---|---|
| Layers | Alternating layers of asphalt and roofing felt |
| Waterproof | Highly resistant due to multiple asphalt layers |
| Durability | Long-lasting, with some systems lasting over 30 years |
| Application | Primarily flat or low-slope roofs |
| Maintenance | Moderate; periodic inspections recommended |
Components of Built Up Roof Membranes
The BUR membrane is a composite of several essential components that work together to provide strength and waterproofing.
- Bitumen (Asphalt or Coal Tar): Acts as the adhesive and waterproofing agent.
- Reinforcement Layers: Sheets of roofing felt or fiberglass mat provide tensile