Wet Sheathing In Attic

What to do about a wet attic.

Wet sheathing in attic.

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. 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. Buckled or damaged 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. There are many signs that an attic is wet. How does condensation get in the attic. Mold on attic sheathing.

It is never a good idea to install a roof over wet plywood or any type of roof sheathing. Trapped water will boil when the sun heats the roof and the shingles will then have small pits where. Moist or wet insulation. This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate.

Prolonged wetness will rot out the roof sheathing. These signs can vary contingent on the catalyst of the problem and are generally worse on north facing or shady sides of roofs. Often this is first noticed when re shingling. In the vast majority of cases the mold growth is caused by condensation.

Water or drip marks scattered on the attic floor. Installation tips osb roof sheathing the ol sage builder trubord.