Crawlspace Insulation

  Crawlspace insulation is a relative hot topic in our industry. There are several ways to insulate a crawlspace and several theories on what type works best. I can only tell you what I’ve seen and experienced and help you to make an informed decision.

  Previously, I told you that spraying expanding foam insulation in a crawlspace is a bad idea. I stand by that statement, but I’d also like to add an asterisk. Spraying the walls is a bad idea for the simple fact that it creates a “highway” from the wet dirt to the moisture rich wood. Termites absolutely love this aspect of the spray foam system. The asterisk I’d like to add is that spraying a little bit inside the rim joist, or the cavity created up against the outer wall in between the support joists, is a great and easy way to insulate that area. DryZone uses this method as well as the SilverGlo rigid board method to insulate these small pockets around the outer perimeter of the house. Either way, you are doing yourself a service and saving energy. The spray foam isn’t connecting the wet soil to the wet wood, so it won’t attract termites. Also, it doesn’t completely cover the wood so your CleanSpace vapor barrier system and SaniDry dehumidifier can properly dry the wood out. This leaves the whole crawlspace smelling and feeling much better.

  Talk to your inspector about the ways DryZone can better insulate your crawlspace.

DryZone proudly serves the entire Delmarva area. We will come out to see you in Delmar, Seaford, Whaleyville, Ocean Pines, or Salisbury.