The roofing system that keeps Southern California businesses protected — engineered for performance on flat and low-slope commercial structures.
The vast majority of commercial buildings in Southern California feature flat or low-slope roof designs — and for good reason. They maximize usable interior space, accommodate rooftop mechanical equipment, and offer cost-effective installation across large square footages. But flat roofing demands a fundamentally different approach than pitched residential systems. Without adequate slope to shed water naturally, flat roofs rely entirely on the quality of their membrane, drainage design, and detailing to perform — and the margin for error is thin.
On a flat or low-slope roof, water management is everything. Ponding water, failed seams, improperly flashed penetrations, and deteriorated membranes are the most common causes of commercial roof failure — and they're all preventable with the right system and the right installer. At Advanced Roofing and Sons, Inc., we have deep expertise across all major flat roofing systems, including TPO, PVC, EPDM, built-up roofing, modified bitumen, and coating systems — giving us the flexibility to recommend the right solution for each building's specific requirements.
• Proper drainage design and slope-to-drain configuration
• Fully adhered or mechanically fastened membrane with no gaps or bridging
• Precise flashing at all walls, curbs, penetrations, and transitions
• Compatible insulation system for energy compliance and thermal performance
• Regular maintenance to identify and address issues before they escalate
• System selection matched to building use, budget, and performance requirements
At Advanced Roofing and Sons, Inc., we've been installing and maintaining flat and low-slope commercial roofing systems across Southern California since 1994. We understand what it takes to keep a commercial roof performing — and we bring that knowledge to every project we take on.
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