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| Built-Up Roofing Systems are usually installed using hot asphalt. It has good waterproofing characteristics but suffers from a loss of ductility after prolonged exposure to UV. |
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Built Up Roof Maintenance
Annual built up roof maintenance involves inspecting and repairing penetrations like vents, pipes or ductwork. These penetrations can open up and may need to be re-sealed periodically. Additionally, repairs seams and flashings should be made. Blisters or delaminations should be cut off and repaired immediately since they will leak over time.
- Built Up Roof Repair
- Learn how to make spot repairs to your built up roof. Serviceable repairs will save you money when it is time for the roof to be coated.
- Built Up Roof Coating
- Our step by step pictures shows you the entire roof coating process. See for yourself!
- Built Up Roof Restoration Specification
- Add 10 or more years to your built up roof with our built up roof restoration system. Get a seamless roof without costly tear off and disruption. Stop roof leaks and prevent further degradation.
Common Problems with Built Up Roofing
Problems with built up roofs can be corrected with minimal expense if detected early.
- Alligatoring
- Cracking of a built up roof producing a pattern similar to an alligator's hide.
Alligatoring is the cracking of the surfacing bitumen on a bituminous roof or coating on a SPF roof, producing a pattern of cracks similar to an alligator's hide; the cracks may not extend completely through the surfacing bitumen or coating.
- Blistering
Raised areas of the built up roof membrane where pockets of air and moisture are present.
- Ponding
- Retention of water on a low-slope or flat roof caused by inadequate roof drainage or structural deflection.
- Weathering
- Deterioration of a built up roof caused by exposure to weather. Thermal expansion, acid rain and UV exposure all contribute of weathering.
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