COMMERCIAL ROOFING IN MISSOURI
Modified bitumen roofing
Modified bitumen cap sheets still cover a large share of older low-slope roofs in this market. We inspect them, repair blisters and flashings, and replace them when the system is used up.
Request a free inspection Call (314) 244-3799
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What this work involves
Modified bitumen is an asphaltic, usually two-ply system with a granulated cap sheet. Failures show up as open laps, blisters, alligatored coating, or flashings at walls and curbs. A repair can be a patch or a new flashing. A replacement is a new modified-bitumen system or a change to a single-ply, written as a scope after the inspection — not assumed in advance.
- Cap-sheet and flashing repairs
- Inspection of blisters, laps and wall flashings
- Replacement in kind or a change of system, itemized before work starts
How we handle it
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You tell us about the building and what you are seeing.
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We inspect the roof, photograph what we find and review it with you.
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You receive a written, itemized estimate before any work is scheduled.
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We pull the permit when the job requires one, and the details of the workmanship warranty are on the certificate for that job.
- The roof inspection is free.
- Inspections documented with photos of what we found.
- Our office reads every request and calls you back.
- GAF Certified
Questions
- Can you repair a blistered cap sheet?
- Sometimes, when the blistering is local and the rest of the system is sound. Widespread blistering or a brittle cap sheet is usually a replacement conversation.
- Do you still install modified bitumen, or only single-ply?
- We still install it when it is the right system for the building. We also replace failed cap sheets with TPO or another membrane when that is the better scope.
Where we do this work
- Jefferson County
- St. Louis City
- St. Louis County
- St. Charles County