Common Roof Problems

Top Commercial Roof Problems

Learn about the most common commercial roof problems seen in Florida

Commercial roofs in Florida can be vulnerable to many issues due to the subtopic weather conditions. From extreme heat and high winds to torrential rains and hail, many elements can cause a roof system to leak or break down prematurely. While today’s roofing systems are tougher than they were 20 years ago, neglecting roof maintenance can lead to premature roof failure. For the best insurance against the high costs associated with roof repairs and replacement, Advanced Roofing recommends semi-annual inspections and maintenance to ensure your roof system performs optimally throughout its service life.

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Metal Flashings

75% of all roof failures occur at the metal roof flashing. These are the areas where the roof membrane meets the vents and HVAC equipment. If left untreated, water can penetrate the roof system. Damage is often caused by high-winds, thermal expansion, material fatigue, trapped moisture, lack of maintenance, or improper installation.

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Clogged Gutters & Drains

Clogged drains, improperly installed seals, corrosion issues, and downspout sizing problems are common reasons for roof leaks.

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Pitch Pans

These are common in roofing systems with unusual or irregularly shaped penetrations. They are made to be watertight, but excessive wear & tear occasionally results in leaks. These are also known as pourable sealer pocket leaks.

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Air Conditioning Stands

HVAC curb flashings, pitch pan, deficient cabinetry, and condensation issues can be typical sources of a roof leak.

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Splitting

Splitting can be caused by excessive pressure, ponding water or simply poor workmanship. It can be that the surface has not been cared for appropriately and solar-reflective coatings or stones have not been maintained, or the surface has been damaged due to excessive foot traffic.

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Blistering

Blistering happens when air is trapped between the layers of felt or plies. When the air heats it causes air pockets which can lead to puncture when the blister breaks particularly if it is a larger blister and located on a joint. If this happens then water can pass through the roof. The area will need to be cleaned and fixed professionally to ensure a waterproof seal is maintained without the presence of moisture.

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Ponding Water

Ponding will show as standing pools of water that do not drain or in dry conditions you will notice a concave area with a watermark surrounding it. If ponding occurs on the edge of your roof,  you can either install scuppers to collect the excess water, or an automatic pump can be implemented for problem areas in the middle of the roof. You could investigate fitting drains or ideally have the lower areas built up to stop the ponding altogether.

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Plant Growth

A tear in the roof membrane can trap moisture in the roof system creating plant growth and damage to the roof insulation.