Is a roof coating a real repair?

It can be, on a sound substrate with good drainage. Over wet insulation or failed seams it mostly buys time. The substrate condition, documented in photos, is what determines which situation you are in.

Why does my flat roof keep leaking after repairs?

Most often because the repairs chased the interior stain rather than the entry point, or because drainage was never corrected. Both show up quickly when the estimate and photos are read together.

Flat and low-slope roofs in San Diego

Mid-century and modern San Diego homes are full of low-slope sections, and they fail differently from pitched roofs. The estimate should reflect that.

Drainage is the whole game

Low-slope roofs do not shed water; they route it. Scuppers, drains, crickets, and slope are what keep water moving. An estimate that replaces the membrane without addressing standing water is repeating the conditions that ended the last roof.

Ponding is evidence worth photographing

If water still sits on the roof more than a day or two after rain, photograph it with a date. That single image tells a reviewer more about the roof's real problem than a page of description.

Seams and terminations fail first

Membrane roofs generally fail at the edges, penetrations, and seams rather than in the middle. Ask where the documented failures are. A pattern along a parapet wall points somewhere very different than scattered field blisters.

Know which system you are buying

Single-ply, modified bitumen, and coating systems have different lifespans, different warranty terms, and very different price points. A coating applied over a failing substrate is a short-term purchase sold at a long-term price.

Frequently asked

Is a roof coating a real repair?: It can be, on a sound substrate with good drainage. Over wet insulation or failed seams it mostly buys time. The substrate condition, documented in photos, is what determines which situation you are in.
Why does my flat roof keep leaking after repairs?: Most often because the repairs chased the interior stain rather than the entry point, or because drainage was never corrected. Both show up quickly when the estimate and photos are read together.

Written by Frankly's consultant, who has spent 10+ years in the roofing industry and now reviews estimates for homeowners only — no roofing work is sold here.

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