Foam roofs are commonly used in many commercial and industrial roofing systems. These roof systems are popular because of the additional layer of insulation they provide. They will require a certain amount of ongoing maintenance to help make sure the foam roofing reduces heating and cooling costs efficiently.

The Do’s and Don’ts of Recoating a Foam Roof

Your foam roof maintenance routine should include regular inspection and repairs as needed. Foam roofing can last 25 years, but periodic recoating will keep your roof in good repair and let you enjoy an effective and energy-efficient foam roof system for longer. Plan to re-coat your foam roof every 5-10 years, depending on the quantity and quality of coating previously installed. Common foam roof problems to be aware of include:

  • Weather damage
  • Delamination
  • Water intrusion
  • Fading or peeling
  • Bird droppings & pecking

A foam roof coating will deteriorate over time, as a result of being exposed to the elements. Weathering can form small pits in the coating as it ages. The process is gradual and may not be immediately visible, but if the pit develops into a hole where water can enter, the whole roof will need to be replaced.

Pre-Coating Inspections

Before you begin recoating your foam roof, a thorough inspection of the whole surface should be done. This includes a visual inspection for obvious cracks, peeling, ponding, or staining. Be sure to take a close look around HVAC units, exhausts, or anywhere a joint or cut was made. These spots are typically the weakest points and most susceptible to damage. Following this inspection, a more in-depth inspection may be required. An infrared scanner or FLIR camera is used to identify ‘hot spots’ where insulation is failing or where water may have entered the building. The contractor can also make test cuts to make sure previous layers of foam roof coating are still adhering properly.

Repair The Foam Roof

Before recoating can take place, you need to complete any necessary repairs of problems you identified during the inspection. This can include patching splits and blisters as well as removing any out-of-use equipment. The cleaner your foam roof system is, the more resistant it will be to future weather and environmental damage. If you discover any water damage or water intrusion your contractor may need to remove and replace whole sections of the roof. The entire system may need to be replaced too. Once the damaged material has been removed, give the area sufficient time to dry before sealing it off. This will prevent further damage and limit the potential for mold growth.
When repairing your foam roof, choose a foam kit, roof cement, flashing compound, or elastic cement that is compatible with your foam roof coating and other roof system materials. Give patches and repairs sufficient time to cure and make sure any new seals and seams are water-tight before the recoating process begins.

Foam Roof Recoating

All debris needs to be removed before the new coating can be applied. Thoroughly clean your roof with a blower and broom or a pressure washer. You can also use suitable detergents to clean off any grease or oil. Give your clean roof time to dry before applying your first layer of coating. We have the right products for getting your roof clean and ready for recoating. Recoating should be done only under the right weather conditions. We are here to help you evaluate when the right time for recoating will be.


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