top of page
TaperSystem01.jpg

Commercial Roofing Systems
Built for Long-Term Performance

Single-Ply Roofing Systems

Single-ply roofing systems are modern commercial roofing solutions designed for flat and low-slope buildings. These systems use durable synthetic membranes that provide excellent resistance to weather, UV exposure, and moisture intrusion.

Their lightweight construction and flexible design allow for efficient installation while delivering dependable long-term performance with minimal maintenance.

Single-ply systems are typically installed over a tapered insulation assembly that promotes proper drainage. High-density ISO boards are used to improve thermal efficiency, along with a DensDeck® layer that adds durability and enhanced fire resistance.

TPO.jpg
Modified-Bitumen-Roof-Installation-Corpus-Christi-Project-0512300001.webp

Modified Bitumen Roofing

Modified bitumen is a multi-ply, asphalt-based roofing system designed specifically for flat and low-slope commercial roofs. This system offers excellent durability, flexibility, and long-term weather protection.
 

Modified bitumen roofs can be installed using several methods depending on the building and safety requirements, including:

  • Torch-applied systems

  • Self-adhered membranes

  • Cold-applied installations
     

These options allow the system to be tailored to different project conditions while delivering a reliable, long-lasting roofing solution.

Commercial Roof Coatings

Commercial roof coatings are applied directly over existing roofing systems to restore and protect the roof surface. Once cured, the coating forms a seamless protective barrier that improves waterproofing and protects the roof from UV damage.

Roof coatings are commonly used on commercial and industrial buildings to extend the life of an existing roof without the need for a full replacement.

Benefits of roof coatings include:

  • Improved waterproof protection

  • Reduced UV degradation

  • Better temperature regulation on rooftop surfaces

  • Extended roof lifespan with minimal disruption

GacoFlex-S20-Before-and-After-Photo.jpg
Gastelum Roofing comany logo

Gastelum Roofing

Bay Area, California

©2026 by Gastelum Roofing

bottom of page