Low Cost Repair or Rejuvenate

GENERAL CONSIDERATIONS before choosing a Type of Roof Coatings:

When installed on a new roof, a roof coating should:
• Be a component part of the roofing system. This will ensure compatibility with the system and enhance overall performance of the system.
• Be installed after the roof has weathered as necessary. Weathering periods may vary depending upon the type of system to which the coating will be applied. Use of a primer may also be required for certain substrates to ensure adequate adhesion.

When installed on an existing roof, a roof coating should:
• Be compatible with the existing roof.
• Help extend the life of the existing roof. Although a coating cannot add life back to a roof already beyond its service life, it can help prevent a roof from aging as quickly as it would without the coating.
• Only be applied to a roof that drains properly. Some coatings may be adversely affected by the presence of ponding water. Therefore, areas of the existing roof that pond water should be repaired prior to coating.
• Only be applied to non-leaking roofs. While coatings may help seal some pinhole leaks not visible to the naked eye, they will not generally find and repair existing leaks. Accordingly, existing roof leaks will need to be identified and repaired prior to coating. Allow repairs to fully dry prior to coating.

How to determine if a roof is a good candidate for coating:
• Perform an adhesion test to confirm the coating will adhere to substrate. The use of a primer may be required. See the Adhesion Testing section for additional information
• A Moisture Survey will reveal any wet substrate that will need to be replaced. If the moisure survey reveals that 25% or more of the roof area contains moisture, then a complete tear-off may be considered. See the Moisture Survey section for additional information.