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(1.5 CEUs) Mobile home factories frame floors from 2 x 6 lumber. The floor cavities are usually uninsulated. The manufacturers insulate the floor with a long and wide blanket underneath the floor joists. A waterproof fabric or asphalt impregnated fiber board protects the insulation and subfloor for moisture and damage. Insulators blow fiberglass insulation into the floor cavities, using a variety of methods. In this course, you’ll learn the following.

  • How to insulate floors by drilling through the rim joist.
  • How to insulate floors through openings underneath the floor.