Roof Boards Damp

Look for potential entry points like roof vents valleys loose nails and mark the area with chalk so you can examine the exterior of your roof after it quits raining.

Roof boards damp. The osb and in fact any wood panels must be allowed to dry completely depending on how wet the panels are this could be a few days before any roofing material is applied to avoid trapping moisture under the roof material that could cause edge swell and buckling. Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest. In the vast majority of cases the mold growth is caused by condensation. Cracking noises can sometimes be heard when walking on the roof during wintertime as a thin layer of ice breaks he adds.

Trapped water will boil when the sun heats the roof and the shingles will then have small pits where the. Another leading cause of condensation in roofs is the use of wood burner cookers. Look for damp spots on the underside of your roof. Such cookers often allow for the quick rise of moist air leaving behind the cold air.

Also look for a thin stream of water flowing down one of the rafters. On structural concrete and possibly wood planks or plywood moisture drips may not be observed. This leads to the formation of damp spots on the surface of the roof. Follow the water uphill till the wood is no longer wet.

Roof cuts and thermographic imaging can also detect moisture in addition to other strategies.