Roof Is Damp In Attic

Even a small pin head sized hole can send gallons of water pouring into your attic over the course of a couple months.

Roof is damp in attic.

A roof timbers within an attic can become damp from two sources. If you suspect you have moisture problems in your attic check for the following indications of excess moisture in the attic. Buckled or damaged roof sheathing. Moist or wet insulation.

The typical expected cause is water penetration from the exterior due to a defective roof covering. Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest. Moisture frost and ice buildup on roofing nails. There are dozens of things that can cause condensation buildups in the attic one of which is a leaking roof.

The source of the attic moisture is usually indoor air that enters the attic through ceiling cracks. Most people assume this is caused by a leaking roof but that might not be the source. And to make matters worse these holes are not easily identified unless it s raining. Fixing this issue can be less costly than replacing a roof but it should be addressed as soon as possible.

If attic air is humid and roof sheathing is cold condensation or frost can accumulate on the underside of the sheathing. Moisture or frost on the roofs sheathing. Common causes of condensation in the attic. Noticeable musky damp odor.

Finding water damage on the wall or ceiling is worrying for any homeowner. This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate. The cause depends on whether you have an unconditioned attic or a conditioned attic.