Roof Systems

The roofing system contains many components, such as framing, plywood decking, felt underlayment, sheet metal flashings and the exterior roofing material. There are many types of exterior coverings, such as clay tile, asphalt shingles and wood shake, to name a few. Construction defects of roof systems can cause damage to personal property in a home or building, and also to the interior framing members, ceilings, drywall, paint and wallpaper by allowing water intrusion into the building. Water intrusion can also cause molds and fungi to propagate and create unhealthy indoor air quality. Common roof system construction defects are:

Roof tiles overexposed, improperly lapped and misaligned
Broken and chipped roof tiles
Roof tiles that are not attached, loose and sliding
Roof paper or “felt” fails to completely cover roof deck
Split, torn or deteriorated felt
Missing anti-ponding metal at eaves
Open gaps at joints of flashing
Valley metal cut too short
Failure to use corrosion-resistant nails
Flashing improperly installed at chimney saddles and skylight