To repair or patch an existing underbelly in a mobile home, cut a piece of polyethylene slightly larger than the hole being patched and clean around the area to be patched. Add insulation up in the belly or attach it directly to the polyethylene using insulation with a paper (kraft) backing and silicone. The underbelly of a manufactured home protects the insulation and keeps out moisture and pests. The mobile home underbelly has several names, including bottom board, belly, barrier, bottom wrap, sheeting, belly paper, and closure.
To insulate under a mobile home, clean the area under your mobile home, seal gaps or cracks in floor joists/skirting, measure and cut foam boards, install foam boards between joists, and secure them. Effective methods to insulate under a mobile home include fiberglass batt insulation, underbelly wrap, foam board insulation, spray foam insulation, skirting insulation, and more. Insulate your mobile home smartly for comfort and savings by assessing needs, choosing the right material, preparing well, sealing leaks, installing correctly, addressing moisture issues, insulate skirting, and checking. If the underbelly is significantly damaged, consider replacing it to protect the insulation from critters.
In summary, to repair or patch an existing underbelly, assess the extent of the damage, cut a piece of underbelly material slightly larger than the area needing repair, and use Flex-Mend™ belly repair tape for small to medium-sized holes or tears.
📹 Repairing a hole in the underbelly
Cutting and patching a hole in the belly of your mobile home, camper or RV.
📹 Repairing Damaged Mobile Home Underbelly Fabric : E108 / BC Renovation Magazine
In this video I show you how I repaired the damaged underbelly fabric in our abandoned mobile home renovation project. Keeping …
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