Why wet insulation comes out
Fiberglass batts that soak up water slump and hold moisture against studs and the back of the drywall. Blown cellulose and fiberglass in an attic pack down under water and leave thin spots. Either way the cavity behind it cannot dry while the wet insulation is there.
Where we see it
- Attic floors under an overflowing AC pan or a monsoon roof leak
- Exterior walls after a pipe or window leak
- Garage walls next to a failed water heater
- Ceilings under upstairs bathrooms
How it goes back
Remove and bag
Wet batts and blown fill are removed from the affected area.
Dry the framing
Studs, joists and the back of the drywall are dried and read.
Install
New batts in walls, or blown fill in attics to an even depth.
Close up
Drywall, tape, texture and paint.
Questions people ask
Can wet insulation dry out?
Fiberglass that is barely damp can. Soaked batts and packed blown fill are usually replaced.
Does wet insulation cause mold?
It holds moisture against wood and drywall, which can lead to mold if not dried.
Do you replace attic insulation?
Yes, in the area affected by the leak.
How do you know insulation is wet?
Touch, sagging, and meter readings on the framing and drywall around it.
Is insulation replacement covered by insurance?
When the leak is a covered sudden event, the damaged insulation is usually part of the claim.
Do you remove insulation before drying?
Yes, so the cavity can dry.
Can I walk in my attic to check?
Only on joists with good footing. Stepping between joists can go through the ceiling.
Do you also fix the drywall?
Yes. Drywall and paint follow the insulation.
Which insulation do you install?
We match what was there, batts in walls or blown fill in attics.
Why does insulation matter so much here?
The airport station logs about 79 days a year at 100 degrees or more.