Built Up Roofing
Built-Up Roofing is one of the oldest and most reliable methods of roofing. It was first known as composition roofing and started in the 1840’s. Built Up roofs are exactly that, they consist of several (as many as 6) plies of roof felt laminated in hot asphalt, and surfaced with gravel set in a flood coat of asphalt.
Many different types of materials with different qualities are available. This variety of material allows the quality of the roof to be tailored to the specific requirements of the structure. Built up roofs can be installed on virtually any type of roof deck. Some of the benefits of a Built Up roof are:
- The multiple plies create terrific protection against leaks.
- The flood coat and gravel surfacing provide impact resistance and UV protection.
- Extreme resistance to wind uplift.
Modified Roofing
Modified bitumen roof systems have expanded their share of the commercial roofing market in recent years. Atactic Poly Propylene (APP) and Styrene Butadiene Styrene (SBS) modified bitumen membranes comprise about 60 percent of the commercial roofing market. The growth of modified bitumen roof systems is likely due to many factors including: Familiarity in the marketplace – modified bitumens were introduced in the U.S. in 1972, are user friendly which allows contractors to use their built-up roofing equipment and expertise.
Like Built Up Roofs, Modified Roofs consist of several (usually 2) plies of roof felt laminated in hot asphalt with a cap sheet that is covered in ceramic granules. Many different types of Modified Roofs with different qualities are available. This variety of materials allows the quality of the roof to be tailored to the specific requirements of the structure. Modified Roofs also can be installed on virtually any type of roof deck. Some of the benefits of a Modified Roof are:
- Lighter Installed Weight
- Energy Star Compliance
- LEEDS Credits
- Quick Install Time
- Multiple Color Options
Certified installers of:
