Flat and low-slope roofs demand specialized heat-welded membranes and positive drainage engineering to eliminate ponding water. We install high-reflectivity TPO and robust torch-down systems for commercial properties and modern homes.
Flat and low-slope roofs cannot rely on gravity shedding like steep shingle roofs. Water sits longer, requiring a 100% monolithic, seamless waterproof barrier. Improperly welded seams or poorly sloped drains are the leading cause of flat roof leaks.
Surety Roofing installs heavy-duty thermoplastic polyolefin (TPO) and multi-ply modified bitumen systems. Our heat-welded seams form a continuous bond stronger than the membrane itself, resistant to UV degradation, ozone, and chemical exposure.
60-mil commercial-grade TPO with hot-air welded seams that will never separate.
Bright white Title 24 compliant membrane reflects up to 85% of solar radiation.
Dual-layer SBS modified bitumen systems for heavy foot traffic and durability.
Custom slope engineering to eliminate standing water and direct flow to scuppers.
Certified for storefronts, warehouses, apartment buildings, modern flat homes, and ADUs.
Complete leak-free craft guarantee on all flat roof seam welds and parapet caps.
A disciplined, step-by-step process designed for safety, precision, and zero disruption.
We inspect deck slope, scupper locations, internal drains, and parapet walls for water evacuation flow.
We fasten high-density polyiso insulation and cover boards to provide thermal R-value and impact resistance.
We install wide-width TPO sheets and robotically weld all overlapping seams at 1,000°F for fused bonds.
We terminate membranes up parapet walls, install coping caps, seal drain bowls, and conduct seam probe tests.
If you notice any of these warning signs, schedule an on-site inspection immediately to protect your home.
Standing pools of water accelerate membrane aging and stress structural roof joists.
Moisture trapped beneath the membrane expands under sun heat, creating leaks.
Separation of flashing metal along roof edges allows water behind the membrane.
Aged adhesive or poor welds create entry paths for wind-driven moisture.
Speak directly with founders Juan & Gabriela Huitanda. We provide honest recommendations, itemized pricing, and transparent timelines.
Comprehensive exterior solutions across Northern California.
