Identify what is inside the wall
Request the observed insulation type, location of wet areas, and access limits. EPA’s clean-water material guidance calls for replacement of wet cellulose and fiberglass insulation; it should not be stretched into one rule for every insulation product or contaminated loss.
Clarify the proposed access
- Which areas need opening to evaluate or remove affected insulation?
- What will be checked on the adjacent framing and other layers?
- Are there building-system or regulated-material concerns before disturbance?
Rebuild the intended assembly
The reconstruction scope should state the replacement insulation and how relevant air, moisture, acoustic, or fire-separation details will be restored. Obtain the required inspection and specialist handoffs before concealing the cavity. Owners should not drill exploratory holes into a wet wall.