My Attic Insulation Is Wet

Though attics are typically hot and dry a leaky roof or pipe condensation or severe weather can cause water to enter your attic.

My attic insulation is wet.

Loose fill vermiculite insulation may contain small amounts of asbestos and you should consult a professional if it is going to be disturbed. Wet insulation means trapped moisture that will slowly degrade the entire roofing system from the decking to the building itself. If you believe moisture is a problem in your attic go and inspect it for signs of mold and mildew. Cmhc s information piece asbestos provides additional guidance.

It creates a breeding ground for mold and mildew and ruins the air trapping pockets that block heat flow. Trapped moisture encourages corrosion of roofing fasteners and rusting of steel studs and wall ties which reduce wind uplift ratings. It will need to be replaced immediately as it will lose its effectiveness to keep your home comfortable. Issues such as blocked vents a leaking roof or even basement flooding can cause attic insulation to get wet.

A moist attic means moist insulation and moist insulation is less effective. If you find vermiculite insulation in your attic do not disturb it. Small black and or greenish colored dots on insulation boxes or other materials is a sign of an exceedingly high moisture content in the air. These can include installation of seamless gutters and downspouts.

Moisture trapped inside of insulation is a breeding ground for mold and bacteria. 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. Be sure to take the necessary steps to prevent water damage to your home. If insulation becomes moist or damp its rendered useless.

Box out light fixtures. If the problem is the result of water or moisture penetrating the foundation or floor slab there are many remedial actions which may help. Water in your attic can damage wood beams insulation and even. 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.

Water is insulation s enemy.