The roof assembly has to match the actual conditions.
Low-slope roof assemblies evaluated by deck, drainage, wind exposure, rooftop traffic, code documentation, and lifecycle goals.
Low-slope roof assemblies evaluated by deck, drainage, wind exposure, rooftop traffic, code documentation, and lifecycle goals.
system fit
Built-Up Asphalt
Built-up asphalt still protects many older San Francisco buildings, and its redundant gravel-surfaced plies handle foot traffic well, so we assess the existing layers and flood-test the drains before committing to repair or replacement.
system fit
EPDM Black
Black EPDM is a proven, economical membrane for the Bay Area's mild climate, where modest thermal swings suit it, and we focus on the seams and flashings that age first when evaluating these roofs.
system fit
EPDM White
White EPDM adds a reflective surface that helps with Title 24 compliance while keeping rubber's durability, making it a practical fit on sun-exposed Bay Area roofs we assess for substrate and seam condition.
system fit
Fleeceback TPO
Fleeceback TPO's fabric backing boosts puncture resistance and bonds well over recovery boards, so it suits busy Bay Area roofs with rooftop traffic where we want a tougher, reflective single-ply assembly.
system fit
KEE Roof Systems
Where grease, chemicals, or harsh UV would shorten an ordinary single-ply roof, a KEE system holds up far longer, which is why we reach for it on Bay Area buildings near restaurant or industrial exhaust.
system fit
Modified Bitumen APP
APP modified bitumen offers a tough, heat-welded multi-ply membrane suited to the ponding and foot traffic common on San Francisco low-slope roofs, and we confirm the fire and occupancy constraints before torch application.
system fit
Modified Bitumen SBS
SBS modified bitumen stays flexible and forgiving, holding up to building movement and the redundancy that low-slope San Francisco roofs benefit from, and we can cold- or heat-apply it based on the occupancy below.
system fit
PVC Roof Systems
PVC's hot-air-welded seams and chemical resistance make it a strong fit for the restaurants and rooftop kitchens common across San Francisco, and we verify the substrate and attachment before specifying a layout.
system fit
Silicone Roof Coating
Silicone coatings shrug off the standing water that lingers on fog-shaded San Francisco roofs, restoring a sound but weathered membrane without a tear-off, provided the existing surface is clean and still structurally intact.
system fit
Spray Polyurethane Foam
Spray polyurethane foam seals irregular roofs and adds insulation in a single pass, but on Bay Area buildings it only succeeds on a dry, clean substrate applied when the fog and dew point cooperate.
system fit
TPO 60 Mil
Sixty-mil TPO gives a reliable, code-friendly reflective membrane for the wide low-slope roofs across the Bay Area, and we weld and detail the seams carefully so they hold through wind-driven winter rain.
system fit
TPO 80 Mil
Eighty-mil TPO adds extra thickness for the foot traffic and long-term durability that demanding Bay Area roofs need, keeping the reflective, Title 24-friendly surface while standing up to heavier rooftop use.