Top 5 Flat Roof Problems

Flat roofing is a popular option, especially for commercial properties in Chino. Flat roofs are strong and economical, and a properly installed flat roof can last for decades. However, every roof needs to be cared for and maintained. Here are five problems to watch for in your commercial roof. If you have any questions, feel free to give us a call at 877-257-5003

Roof Leaks

Roof leaks and moisture seepage can be a problem for flat roofs. Because flat roofs don’t drain water as quickly as a sloped roof, even small flaws in materials or workmanship can quickly cause problems.  These problems are especially common at seams or around flashing.  If you see any signs of leaks or moisture, contact a roofing company immediately.

Ponding Water

If a flat roof isn’t properly drained, ponding can occur. Ponding is a sign that water isn’t properly moving off your roof. Ponding can cause serious problems in the long run, especially in the case of a storm or heavy rainfall. In ponding occurs, make sure the roof is inspected fully to find the cause of the ponding. Make sure all drains are clear and that all HVAC units have condensation drains. If the problem still occurs, contact a qualified flat roofing company immediately.

Improper Repairs

Using the wrong material to repair a roof can cause serious issues. This is especially common when building owners attempt to make repairs themselves or if the repairs were not made by a qualified roofer. Different roofing types have different types of materials that should be used for repairs. The manufacturer’s instructions should always be followed when making roof repairs. If you question any of the repairs on your roof, call a local roofing company to inspect the problem


Blistering or alligatoring occurs when small bubbles of moisture or air are trapped under a roofing membrane. Minor blistering need only minimal repairs, especially if it doesn’t occur in a lap joint. However, large or excessive blisters may indicate a roof needs serious repairs or even needs to be replaced entirely.

Blow-offs, Tenting, Flashing Damage

Whether the result of poor flashing, improper fastening, or even natural shrinkage over time, your roof may suffer from blow-offs and tenting. These problems are serious when they occur, but can be prevented by regular inspections and flashing repairs when needed.

No Matter what issues occur, make sure you have a reliable roofing contractor. Royal Roof Co. has been in business since 1981 and would like to help you with your roofing needs. If you are in Chino or the Pomona Valley, give us a call at 877-257-5003 or contact us online. For a full list of our service areas, visit our  Areas Served page.

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