Insulation sits just below the roof s membrane.
Roof leaked all attic insulation got wet.
A roof repair or replacement is the perfect time to replace your insulation.
Wet insulation no longer performs its primary function of inhibiting heat transfer.
While your roof is being repaired or replaced the decking can be easily lifted to allow for blow in insulation to be shot up through a tube into your attic creating little disturbance and no mess.
If the insulation became wet from water that contained any contaminates such as flood water and sewage then the affected insulation and the wallboard are likely ruined and both materials need to be removed as soon as possible.
Wet insulation increases the burden on the building itself and over time can lead to warping and other structural damage.
Often this is first noticed when re shingling.
If the roof has leaked it likely got the insulation wet.
When insulation is wet or even just damp it no longer works to regulate the temperature in your home.
Prolonged wetness will rot out the roof sheathing.
If you have closed cell spray foam insulation that s been exposed to moisture never fear.
Saturated insulation typically loses at least 40 of its insulating r value.
However a burst pipe or roof leak may dampen cellulose insulation installed in your attic exterior walls or crawlspace.
There are many signs that an attic is wet.
Mold on attic insulation ceilings etc.
What to do about a wet attic.
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.
After all despite chemical treatments cellulose fibers aren t waterproof.
Especially as your home ages a bit.
Closed cell spray foam insulation provides a moisture barrier and an air tight seal.
Musty smell in the attic.
No matter how well your skylights were installed it is still possible for them to leak during heavy rains.
Skylight leaks in heavy rain are a common source for roof leaks.
If you re noticing water on your spray foam insulation it almost certainly means that you ve got a leak somewhere.
Loss of insulating value.
My spray foam insulation is wet.
During installation each skylight essentially creates a big hole in an otherwise uniform roof surface.
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.
When your insulation is inundated with water you need to act quickly.
Insulation in the attic is often the first victim when roof leaks occur or when plumbing pipes routed through the attic leak.
Here s what happens if cellulose insulation gets wet and how to handle it.
While in your attic inspect the insulation as well.