Insulate Basement Rim Joists

Cut heat loss through the rim joists and tighten up your house with rigid foam insulation.

Required Tools for this Project

Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.

  • Tape measure
  • Circular saw
  • Caulk gun
  • Stepladder

Use a box cutter to cut the insulation. You can cut the insulation strips with a circular saw or table saw.

Required Materials for this Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.

  • Acrylic caulk
  • Expanding foam