Wet Sheathing In Attic

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.

Wet sheathing in attic.

Wet sheathing was found in attic area due to lack of venting. Water or drip marks scattered on the attic floor. Often this is first noticed when re shingling. Prolonged wetness will rot out the roof sheathing.

Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest. Attics can suffer two types of leaks. Moist or wet insulation. Moisture or frost on the roofs sheathing.

This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate. Trapped water will boil when the sun heats the roof and the shingles will then have small pits where. These signs can vary contingent on the catalyst of the problem and are generally worse on north facing or shady sides of roofs. Mold on attic sheathing.

If you have ceiling leaks only in the spring it may be that ice has been forming on the sheathing all winter and it suddenly melts when a warm spell arrives. Water leaks are more obvious as telltale signs such as darkened water stains evidence of mold on the ceiling inside the house or wet sheathing. Buckled or damaged roof sheathing. What to do about a wet attic.

How does condensation get in the attic. In the vast majority of cases the mold growth is caused by condensation.