When mold keeps coming back in the same unit, it's usually not a mold problem.
We were called to an apartment complex last year where a property management company had treated the same corner of the same unit three times. Black mold. Top corners of the living room. Each time, they remediated it. Each time, it came back.
When we got into the attic, we found exhaust vents sitting on solid plywood — no holes cut underneath. The vents were there. The airflow wasn't. The roof had never been able to breathe. The mold was never going to stop coming back until that changed.
The fix was straightforward. The diagnosis was the part that had been missing.
We've seen the same pattern at a two-year-old townhome complex — mold along the soffits across the entire building, traced back to a ventilation system where every vent was working against the others. And at properties where the roof looked completely normal from the outside until someone actually got up on it.
Building code requires a certain amount of ventilation per square foot. It says nothing about whether that ventilation is balanced or functional. Installations can pass inspection and still do nothing.
If you manage properties and you're dealing with mold that keeps returning — same unit, same corner, same season — the roof is worth looking at before the next remediation call.
We offer free inspections. Call us at 503-242-0803 or visit
integrityroofingco.com.
