Buckled or damaged roof sheathing.
Attic sheathing wet.
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.
Installation tips osb roof sheathing the ol sage builder trubord.
This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate.
Water or drip marks scattered on the attic floor.
What to do about a wet attic.
Mold growing on the sheathing in your attic is a serious problem that shouldn t be ignored.
The presence of mold inside your home even if it.
Attics can suffer two types of leaks.
Prolonged wetness will rot out the roof sheathing.
And that the sheathing was extremely wet.
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.
It is never a good idea to install a roof over wet plywood or any type of 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.
When the roof sheathing is rotted or damaged or when other structural repairs are needed a tear off is unavoidable.
There are many signs that an attic is wet.
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 was found in attic area due to lack of venting.
There appears to be some kind of mold up there but there is no access to the attic due to a very low pitched roof.
When moisture gets into the attic it condenses on the roof sheathing in the form of frost.
The bathroom fan has been replaced and is now vented properly but.
In the vast majority of cases the mold growth is caused by condensation.
Often this is first noticed when re shingling.
Melting frost can lead to deteriorated roof sheathing mold on the roof sheathing wet insulation and water stains on the ceilings.
Mold on attic sheathing.
Frost itself doesn t do any damage but once it melts things get wet and then damage occurs.
Moist or wet insulation.
Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest.
Moisture or frost on the roofs sheathing.