Kalkreuth Home > Systems > Roofing > Built-Up
Built-Up
Built-up Roofing Systems
Built-up asphalt and coal-tar bituminous roof systems are the tried-and-true historic standards in low-slope roof applications. Multiple plies, or layers, are applied with hot bitumen to achieve a highly durable roof assembly. Coal tar and asphalt are heated in a kettle. Then they are applied via mop or mechanical spreader. Asphalt roof systems are highly durable, and coal-tar pitch systems are somewhat self-healing in nature due to their low melting point.
Kalkreuth Roofing can assist in determining the type of built-up system best suited for your situation. We can also install both self-adhered and fully-adhered vapor barriers under any of our roofing systems.
Built-Up Roofing Systems
Built-up roofing systems are available in various thicknesses, finishes and number of plies. The top layer is often gravel surfaced, or may be smooth with a liquid coating. Most built-up systems are relatively easy to repair with common cement. Warranties are available from 10 to 20 years.
Features
- Highly durable – multiple plies/layers of material in hot bitumen which is water resistant
- Wide variety of standard finish textures and colors of gravel
- Can be phased on new-construction projects so that the top layer is the final stage
- Coal-tar bituminous roofs are able to withstand ponding water
Options
- Asphalt or Coal-tar
- Various thicknesses and strengths of plies
- Gravel or smooth finish
- Multiple color options depending on type of finish
