BERKELEY FLAT ROOF BLOG Flat Roof Leak Near a Vent Pipe: A Quick, Common Fix Plumbing and exhaust vent pipes are small penetrations, but their rubber boot seals degrade faster than the surrounding roof. The rubber or neoprene collar around a vent pipe is exposed to more direct UV and thermal cycling than the flat…
BERKELEY FLAT ROOF BLOG Flat Roof Leak After a Roof Cleaning Service — What Happened? Pressure washing and aggressive cleaning can genuinely damage an older or already-marginal membrane. High-pressure cleaning can strip protective granules, force water under lapped seams, or stress an already-brittle membrane past its breaking point — especially on older modified bitumen or…
BERKELEY FLAT ROOF BLOG Flat Roof Leak vs. Gutter Overflow: How to Tell the Difference Water damage near the roofline isn’t always a roof leak — sometimes it’s drainage overflowing at the edge. Overflowing gutters or a poorly draining roof edge can push water back under fascia boards or siding, mimicking the appearance of a…
BERKELEY FLAT ROOF BLOG How Roofers Actually Find a Hidden Leak A few of the real techniques professionals use, beyond just looking at the stain and guessing. Interior-to-roof measurement: measuring the water stain’s distance from two fixed walls, then replicating those same measurements on the roof to get a starting search point. Grid search: on…
BERKELEY FLAT ROOF BLOG Flat Roof Leak Detection Without Cutting Into the Roof Most leaks can be found through careful inspection and measurement alone — no exploratory demolition required. Cutting into a roof to search for a leak is a last resort, not a standard step. Most leaks are found through the interior-to-roof measurement method,…
BERKELEY FLAT ROOF BLOG Flat Roof Leak Near the Chimney: A Very Common Pattern Chimneys are one of the most common flashing failure points on any roof, flat or pitched. A chimney passing through a roof needs counter-flashing set into the masonry to keep water out — and that flashing detail is exposed to the…
BERKELEY FLAT ROOF BLOG Can a Flat Roof Leak Cause Mold? What to Watch For Yes, given enough time and moisture. Here’s what actually raises the risk. Mold needs moisture and time — a leak that’s been active for weeks or months, especially inside a wall cavity or attic space with limited airflow, creates exactly…
BERKELEY FLAT ROOF BLOG Flat Roof Leak During a Dry Spell — Is That Even Possible? Yes, and it usually points to something other than rainwater intrusion — condensation, plumbing, or irrigation. If there’s genuinely been no rain and you’re still seeing new water damage, the roof might not be the source at all. Condensation…