If the problem is the result of water or moisture penetrating the foundation or floor slab there are many remedial actions which may help.
My attic insulation is wet.
It will need to be replaced immediately as it will lose its effectiveness to keep your home comfortable.
My cellulose insulation is wet.
Water is insulation s enemy.
Water in your attic can damage wood beams insulation and even.
It is important to stop air leaks because a heated house is much like a chimney.
If you believe moisture is a problem in your attic go and inspect it for signs of mold and mildew.
Wet insulation means trapped moisture that will slowly degrade the entire roofing system from the decking to the building itself.
A moist attic means moist insulation and moist insulation is less effective.
It creates a breeding ground for mold and mildew and ruins the air trapping pockets that block heat flow.
The best way to fix a wet attic is to stop air movement or leaks from the house.
Once this is done the existing ventilation is usually more than enough to keep the attic dry.
When your cellulose insulation gets wet you need to sit up and pay attention.
If the fiberglass within your wall cavity or in your attic becomes wet from a leaky roof or burst pipe it will lose insulating effectiveness until the material dries out over time.
You ll need to replace it all.
If insulation becomes moist or damp its rendered useless.
Though attics are typically hot and dry a leaky roof or pipe condensation or severe weather can cause water to enter your attic.
Trapped moisture encourages corrosion of roofing fasteners and rusting of steel studs and wall ties which reduce wind uplift ratings.
If it starts to have a funny smell it s a sign that the water that contaminated the insulation was dirty.
Issues such as blocked vents a leaking roof or even basement flooding can cause attic insulation to get wet.
The typical expected cause is water penetration from the exterior due to a defective roof covering.
Look for water stains on the roof sheathing or damp or moldy spots on attic joists and existing insulation as a clue to where leaks might be.
Carefully watch your insulation for the next couple of weeks.
Be sure to take the necessary steps to prevent water damage to your home.
Box out light fixtures.
A roof timbers within an attic can become damp from two sources.
The best solution for controlling moisture is at its source.
