At BW Services, we pride ourselves on being the leading provider of roofing solutions in the greater Philadelphia area for all roof types and materials, from a gabled roof with shingles to a flat commercial roof. Among our top-notch offerings is the innovative Modified Bitumen Roofing system, a versatile and durable solution for flat and low-slope commercial roofs.
What is a Modified Bitumen Roof System?
This robust commercial roofing system has evolved over the last 50 years. It is a fusion of asphalt, polymerized rubber or plastic, and fiberglass, creating a waterproof membrane known for its tensile strength and flexibility. This material is particularly well-suited for flat or low-slope roofs, offering enhanced durability and weather resistance.
The layers that make up this material generally consist of:
- Base Sheet: The bottom layer provides structural support.
- Bitumen Membrane: The waterproof layer fused with asphalt, polymers, and fiberglass.
- Cap Sheet: The top layer provides additional protection and weather resistance.
Advantages
- Durability: With enhanced tensile strength, it withstands extreme weather conditions.
- Flexibility: Adapts well to temperature changes, preventing cracking or damage.
- Ease of Installation: Simplifies the flat roof installation process, reducing installation time and costs.
- Weather Resistance: Provides reliable protection against rain, snow, and UV rays.
History of This Layered Flat Roofing System
Originating in Europe in the mid-1960s, modified bitumen was introduced to improve traditional built-up (BUR) systems. With its alternating layers of asphalt, fabric, and gravel, BUR was effective but heavy, expensive to install, and challenging to repair. The innovative approach of incorporating bitumen with polymers and fiberglass aimed to simplify the roof installation process while addressing the limitations of BUR.
The success of this new roofing type was evident as it gained popularity in the United States, gradually replacing BUR as a more efficient and reliable material. Today, it is a testament to technological advancements, providing superior protection and longevity to low-slope roofs on commercial and residential buildings.
Trust BW Services for Flat Roofing Options in Pennsylvania
Choose BW Services for your exterior renovation and roofing needs in the greater Philadelphia area. We’re proud to help Pennsylvania residents from King of Prussia to Yardley and beyond!
Contact us today for reliable, long-lasting roofing solutions that stand the test of time.
