How to Determine if Your Roof is a Candidate for Restoration
Metal, built-up, modified bitumen, single-ply, and spray polyurethane foam roofing systems can all be coated. There are many variables that influence the feasibility of applying a roof coating, though; these include location and slope, as well as exposure to chemicals, high heat, and UV. Condition of the existing roof system is the biggest determinant.
Without corrective action, you cannot apply coating to a roof that has:
- Wet insulation.
- Raised fasteners.
- Deteriorated decking.
- Excessive foot traffic or is used as a work platform.
Additionally, roofs with poor drainage are not a candidate for coating application. The coating deteriorates faster because of the presence of ponding water. Water dispersion or drainage systems must be added before coating.
Many of the conditions listed above can be remedied so the roof is eligible for coating. A thorough roof inspection will help identify any deficiencies that need to be addressed.
Infrared imaging or core cuts may be used to identify the presence of moisture. Once wet areas are replaced and repaired, an adhesion test will be conducted to make sure the coating will bond properly. All repairs or correction action should be made prior to the coating application. Only then can the project begin.
It’s important not to put off the decision. The condition of your roof can change dramatically in just one year, making coating no longer possible.