How Spray Foam Protects your Home from Moisture Damage

Preventing Moisture Damage

We’ve sung the praises of closed cell spray foam before here, here, and here, but if you still need evidence that spray foam can benefit your home’s crawl space, we’ve got something remarkable to show you.

First, though, a quick reminder of the benefits of insulating your crawl space with closed cell spray foam. Spray foam insulation:

  1. Prevents air infiltration that leads to cold feet during the winter months.
  2. Seals in conditioned air to save energy and money.
  3. Closes off cracks and crevices that allow insects and rodents to creep into your home.
  4. Increases structural integrity.
  5. Repels moisture from the earth that leads to rotten floorboards and termite infestations.
  6. Resists mold, mildew, and other problems related to the damp conditions beneath homes.

Now, on to the powerful proof that spray foam will resist the moisture damage that occurs beneath your home better than any alternative insulation.

Leigh Bock, owner of By Land or Sea Construction, knows a thing or two about the perils of mixing wood and water. He’s been building piers, houseboats, and other floating structures for more than twenty years.

Over the years, he and his team have employed a variety of materials to keep their structures afloat, but recently he turned to closed cell spray foam insulation, which is exactly what we use to seal up the undersides of homes in humid southern Louisiana.

After a six inch application of closed cell spray foam, we had Bock’s latest project, a floating dock for Tulane’s rowing team, high and dry! Watch Bock’s crew jump on the dock to see just how well closed cell spray foam repels water.

Closed cell spray foam will do more than keep the dock afloat, however. It also provides increased structural integrity to the dock, acting as a rigid, impermeable glue that adds strength to the wood structure.

If spray foam can do this for a floating dock, just imagine what it can do underneath your home! To find out more about closed cell spray foam and how it benefits homeowners, read more here or give us a call. We’re happy to share more information with you.


Main Office: Sunlight Contractors, LLC 2323 Bainbridge St #110, Kenner, LA 70062 (504) 919-9993

New Orleans location: Sunlight Contractors, LLC 650 Poydras St, Suite 1400, Rm 33, New Orleans, LA 70130 (504) 302-0058

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