The starting point for a roof inspection should be the interior of the building. The interior walls and ceilings should be checked for signs of water staining. After the inspection of the interior a thorough inspection of the exterior walls should be made along with the roof system.
The following roof components should be inspected:
Flashing: These are the protection for the membrane termination and often provide a waterproof cover at the membrane termination. These include Counter- flashing, expansion joint covers, copings and flashing at walls and curbs. A variety of problems may occur at these vulnerable locations.
Penetrations: These are pipes, drains, vents, stacks and other items that penetrate the roof membrane. These MUST be flashed properly to assure a watertight roof system.
Field Membrane - What to look for:
· Open seams excessive blisters, wrinkles, ridges or areas of non-adhered membrane.
· Worn spots holes or deteriorated areas of the membrane.
· Deteriorated, areas of surface coating on the membrane.
· Adequate, drainage and ponding problems of the membrane.
· Areas around rooftop equipment that may have been degraded by leaks or spills or punctured by
dropped equipment parts.
Leak Maintenance Procedure:
1. Protect the interior.
2. Remove excess water from the roof. Check roof drains and scupper boxes to be certain that they are functional. Excessive ponding on the roof may cause roof system damage, structural damage or even roof collapse.
3. Locate the source of the leak by locating the paint an the roof above the leak in the building's interior.
4. Perform necessary repairs. Once the source of a leak is located, the materials and procedure used to make the roof watertight will be determined by the roofing professional.
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