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Spray Foam Insulation

Mobile Home Underbelly Insulation: Is It Really Worth It?

  

mobile home underbelly insulation

Replacing the insulation under your mobile home can be a daunting task, especially with larger mobile homes, but the rewards more than make up for it.

You can sleep more soundly at night knowing that your home is safely, and efficiently, insulated.

 

Why Replace the Insulation Under Your Mobile Home? 

There are three reasons one may need to replace the insulation under one’s mobile home: Wear and tear, pest control, and moisture accumulation.

Let’s take a look at each of these reasons in a little more detail:

Reason 1: Wear and Tear: Inevitably, insulation suffers from wear and tear. Older mobile homes are particularly susceptible to this, as the insulation that was originally installed may not be up to modern home insulation standards, and is thus largely ineffective overall.

Reason 2: Pest Control: Mobile homes are often built close to the ground, and like other houses, are susceptible to be boarded by pests, such as rodents.

Reason 3: Moisture Accumulation: The worst that can happen if a mobile home is improperly insulated is that moisture can accumulate underneath a mobile home. Water can damage floors and carpeting, and, if left unaddressed, lead to mould and structural damage.

The best way to deal with these problems is to replace the insulation under your mobile home. Here's how...

mobile home underbelly insulation

The worst that can happen if a mobile home is improperly insulated is that moisture can accumulate underneath a mobile home. Water can damage floors and carpeting, and, if left unaddressed, lead to mould and structural damage

How to Do Mobile Home Underbelly Insulation

There are several steps you must take to replace the insulation beneath your home:

  1. Check the underside for any holes or damage.
  2. Patch any holes or other damage, or if necessary, replace the polyethylene or other material entirely. This step can be done after installing the insulation, thus guaranteeing that the underbelly and insulation are both protected.

Now that one has taken care of the underbelly, the next step is to work on the insulation.

mobile home underbelly insulation

Use spray foam insulation to fill smaller or hard to reach gaps and places, taking care that none of the foam hits the face or the body!

Insulating Your Mobile Home, Step by Step

Step 1: Remove the older insulation carefully, taking care not to inhale any material that may be dangerous. The latter is especially necessary in much older mobile homes that use such material. Careful removal will ensure that the newer insulation will be placed in properly, without any hitches.

Step 2: Lay a moisture barrier on the ground before installing the insulation. One source we have consulted recommends using 6 mm polyethylene plastic sheeting. The reason is twofold: it protects insulation against ground moisture that may damage it, and it is much more comfortable to crawl on plastic.

Step 3: Remove the road barrier that protects the underbelly from the road. You should use a flat head screwdriver to remove staples, a Philips screwdriver to remove screws, and a pry bar to remove nails. If the road barrier is flexible, you can leave one side attached to the rim joist of the underbelly.

Step 4: Cover all water pipes with foam insulation and secure the insulation to the mobile home’s underbelly. This step is especially critical in colder climes.

Step 5: Inspect all the seams between the floor and joists. Also, inspect any points through which wires pass through the floor. Seal any gaps with silicone caulk. Use fiberglass batt insulation to cover any cavities between the joists.

Step 6: Use spray foam insulation to fill smaller or hard to reach gaps and places, taking care that none of the foam hits the face or the body.

Step 7: Reattach the road barrier using the same fasteners that were removed earlier.

These steps should only be attempted by mobile homeowners who are are confident in their D.I.Y capabilities. If you’re a relative novice in this area then you should enlist the help of the experts. To do so, call 0800 1700 636, or click the button below to get started today!