
To Add Insulation on a Mobile home when redoing the Siding, you have to remove the wind wrap or other protective wrap that covers the home’s wall sheathing or foam board. After that, caulk gaps in the wall sheathing or the existing foam around doors, windows and utility inlets with a silicone caulk. You need to Re-tape existing foam boards if necessary. Then, Check the 6-inch-deep wall pockets for insulation and have a professional with the proper equipment add sprayed insulation through the wall sheathing if insulation has settled. Next, Affix foam boards to exterior walls with construction adhesive.
You must Tape seams with foil tape to keep water out and stop infiltration of cold air and insects. You should follow the manufacturer’s instructions for the type of adhesive, tape and any nailing instructions. Forth, wrap the entire house with a wind or fire-retardant paper as dictated by local building codes. You can Tape the wrap down around windows, doors and other edges and openings with insulation tape. Last, Nail 1-by-2 vertical nailing strips every 16 inches over the wall studs.