Touchstone Energy® Home
Program Standards

FLOOR INSULATION:

Three foundation approaches are typical in this area for residential construction: open crawl spaces, enclosed crawl spaces and concrete slabs. Insulation requirements for each are outlined below:

  1. Enclosed crawl space - a minimum of R-19 faced batt insulation will be placed between the floor joist above the crawl space. A ground cover vapor barrier will reduce the evaporation of moisture from the ground into the crawl space. A 6-mil polyethylene vapor barrier must be installed with overlapping joints and 100% coverage.

  2. Open crawl space - a minimum of R-19 faced batt insulation will be placed between the floor joist above the crawl space.

  3. Concrete slab - in this application, a rigid insulation covers the exterior vertical face of the perimeter concrete grade beam. Insulation board is optional for all slab insulation applications, but is recommended.