Animal intruders such as bats or squirrels or water leaking through the top floor ceiling.
Wet insulation in attic ofcondo.
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.
If only a small area has gotten wet it may be easy to remove the damp fibers and let them dry for several days before reinstalling them.
Clothes dryers venting air to the attic rather than outside.
Let the insulation dry out.
Saturated insulation typically loses at least 40 of its insulating r value.
Air conditioner condensate pan not draining.
For many years building codes have required high levels of attic insulation making attics less than hospitable places.
If you discover wet cellulose insulation in your attic walls or crawlspace you have a few options for dealing with the problem.
Trapped moisture encourages corrosion of roofing fasteners and rusting of steel studs and wall ties which reduce wind uplift ratings.
Even if you must remove most or all of the.
Inadequate ventilation attics must be vented to allow moist warm air to escape.
While fiberglass is technically waterproof inside an enclosed attic the thick batt retains moisture which degrades its thermal resistance properties.
Wet insulation no longer performs its primary function of inhibiting heat transfer.
People usually go into their attics for one of two reasons.