Certified (Residential) and Master (Commercial) GAF Installer- Founded in 1886, GAF Materials Corporation has grown to become North America’s largest manufacturer of residential and commercial roofing.

Mule-Hide Warranty Eligible Contractor- Mule-Hide is the right choice for a broad range of roofing applications. Mule-Hide time-proven systems are simple and economical to install, yet meet the stringent demands of today’s commercial, industrial, and institutional buildings with an eye on the future.

The GAF System Plus Limited Warranty extends the typical shingle warranty, which only covers damage to the actual shingle. System Plus expands the coverage to include your entire Cal’s Roofing installed roofing system! The only requirement is we install GAF high-quality shingles and at least two other GAF components of the 5-part Weather Stopper system. Once completed, your roof can be protected for up to 50 years*!