Walk a flat roof after a wet San Francisco week, and the surface rarely tells the whole story. Small areas of ponding, aging seams, tired
Stand on an older flat roof and the first thing you notice is rarely the membrane itself. Drains, seams, rooftop equipment, flashing, and areas of
Walk a flat roof in San Francisco and the membrane rarely tells the whole story. The seams, drains, penetrations, attachment method, and surrounding equipment often
Pull back the first few tiles on an older roof, and the plywood underneath sometimes tells a different story than the tiles above it. What
A rooftop crew checking a flat membrane in July will find it dry by mid-morning. Check that same membrane in January, and dew can linger
A single water stain over a bay window rarely explains itself. Walk the roofline above it, and the real story is usually somewhere else, a
