Wet Sheathing In Attic

Moisture or frost on the roofs sheathing.

Wet sheathing in attic. It is never a good idea to install a roof over wet plywood or any type of roof sheathing. Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest. Moist or wet insulation. Trapped water will boil when the sun heats the roof and the shingles will then have small pits where.

In the vast majority of cases the mold growth is caused by condensation. Often this is first noticed when re shingling. 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. There are many signs that an attic is wet.

What to do about a wet attic. Attics can suffer two types of leaks. These signs can vary contingent on the catalyst of the problem and are generally worse on north facing or shady sides of roofs. 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.

Buckled or damaged roof sheathing. Mold on attic sheathing. Wet sheathing was found in attic area due to lack of venting. Prolonged wetness will rot out the roof 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. How does condensation get in the attic.