Business Details
Trusted Roofing Underlayment Manufacturer in Shafter, CA
GMC Roofing & Building Paper has established itself as a trusted manufacturer of high-performance roofing underlayments and building paper products. Our commitment to quality is demonstrated through rigorous adherence to ASTM standards and continuous product testing to ensure durability and compliance with international building codes. With production facilities in Shafter, California, and distribution networks across multiple states, we serve contractors, distributors, and project owners with reliable moisture-resistant solutions for exterior wall assemblies and roofing systems.Our team combines technical expertise with customer-focused service to deliver products that meet the evolving needs of the construction industry while maintaining a strong emphasis on safety and code compliance.
Services
Roofing Felt
Building Paper
Credit Application
Product Ordering
Technical Support
Highlights and features
- We manufacture products meeting multiple ASTM standards including D-779, D-828, and E-96
- Our materials comply with 2006-2018 International Building and Residential Codes
- We maintain ICC Evaluation Report ESR-2376 for product performance verification
- Our team provides specialized technical support for product application and compliance
- We offer nationwide distribution with multiple production and fulfillment locations
Services
Roofing Felt
Our asphalt-saturated organic felt underlayments provide critical moisture protection for roofing systems. Available in 15# and 30# weights meeting ASTM D 4869 and D 226 standards, these products offer reliable performance for both residential and commercial applications while complying with current building codes.
Building Paper
GMCraft asphalt-saturated building paper delivers exceptional water resistance for exterior wall assemblies. Certified under ICC ESR-2376, this weather-resistive barrier meets multiple building code requirements and provides durable protection for stucco and other wall cladding systems in various climate conditions.
Product Compliance
We maintain comprehensive compliance documentation including ICC Evaluation Reports and ASTM certifications. Our products meet 2006-2018 International Building Code requirements and Florida/Miami-Dade County approval standards, ensuring code-compliant solutions for construction professionals nationwide.
People
Glen Passmore III
Corporate Sales & Pricing
Third-generation industry professional with extensive experience in roofing material sales and pricing strategies. Leads corporate sales initiatives while maintaining family legacy of quality manufacturing standards established by company founder Glen A. Passmore, Jr.
Christi Grindstaff
Executive Vice President of Sales
Sales leader with deep industry connections across roofing distribution networks. Oversees national sales strategy while maintaining direct client relationships through technical product knowledge and market-specific solutions for contractors and distributors.
Dave Swaroop
Director of Sales
Sales management professional with specialized expertise in building material distribution channels. Coordinates territory-specific sales approaches while ensuring alignment between production capabilities and market demand requirements across multiple regions.
Questions
What roofing underlayment products do you offer?
We provide asphalt-saturated organic felt underlayments in various weights (15#, 30#) and fiberglass-based options meeting ASTM D 4869 and D 226 standards.
Are your building papers code-compliant?
Yes, our GMCraft building paper exceeds Federal Specification UU-B-790a and maintains ICC Evaluation Report ESR-2376 since 2009.
How can I place an order?
Orders can be placed by phone, fax, or email through our designated ordering channels with delivery available nationwide.
Do you serve commercial construction projects?
Yes, our products are used in both residential and commercial applications with documentation supporting code compliance for all project types.
Where are your manufacturing facilities located?
Our primary production facility is located at 6400 Zerker Road, Shafter, CA 93263 with additional locations in Florida and Oklahoma.
