Green Group Roofing is a licensed roofing contractor serving the San Francisco Bay Area with over 20 years of experience installing, repairing, and maintaining hot mop roofing systems. Whether you're building a new home, replacing an aging roof, or repairing damage, our expert team has the knowledge and craftsmanship to deliver exceptional results.
Hot Mop Roofing is commonly used for commercial and industrial buildings across San Francisco, Oakland, Berkeley, and the greater Bay Area.
What Is Hot Mop Roofing?
Hot mop roofing (built-up roofing or BUR) consists of alternating layers of hot asphalt (tar) and roofing felt. Typically 3-5 layers are applied, with the final layer often covered with gravel or a cap sheet. This creates a thick, durable, waterproof membrane.
Common in: San Francisco, Oakland, Berkeley, Alameda
Pros and Cons of Hot Mop Roofing
Advantages
- Excellent waterproofing
- Proven technology (100+ years)
- Good for flat and low-slope roofs
- Multiple layers provide redundancy
- Can support foot traffic
- Cost-effective for commercial use
Considerations
- Strong odor during installation
- Heavy weight
- Requires skilled installers
- Dark surface absorbs heat
- Can become brittle over time
- Repairs can be complex
Where Hot Mop Roofing Works Best in the Bay Area
Hot Mop Roofing is particularly well-suited for:
- Flat commercial roofs
- Multi-unit residential buildings
- Urban properties (established method)
- Roofs requiring waterproof membrane
Our team has installed hot mop roofing systems throughout the Bay Area's diverse microclimates—from foggy coastal areas to hot inland valleys. We understand how local weather patterns affect roof performance and will recommend the best specifications for your specific location.
Our Hot Mop Roofing Services
Hot Mop Roofing Repair
Expert repair services for leaks, damage, and wear on hot mop roofing systems.
Learn MoreHot Mop Roofing Installation
Complete hot mop roofing installation with premium materials and expert craftsmanship.
Learn MoreHot Mop Roofing Maintenance
Regular maintenance to extend the life of your hot mop roofing and prevent costly repairs.
Learn More24/7 Emergency Service Available
Commercial roof emergencies don't wait. We offer 24/7 emergency repair services for hot mop roofing systems.
Emergency Repair ServicesService Areas for Hot Mop Roofing Projects
We install and service hot mop roofing throughout the San Francisco Bay Area, including:
Hot Mop Roofing - Frequently Asked Questions
Common questions about hot mop roofing for Bay Area homes and buildings