How to Insulate a Horse Trailer

Horse trailers can be made more comfortable with the proper insulation and correct installation -- either for your horse or for yourself as conversion into living quarters. Styrofoam insulation and an extra wall of galvanized, no-rust steel will need to be added to the interior sides since most horse trailers come with single-wall aluminum sides. A one-piece roof design will prevent leakage from the elements better than sealing and caulking rivets and seams on the roof.

Things You'll Need

  • Rigid foam insulation
  • Utility knife
  • Yardstick
  • 2-inch aluminum tape
  • Caulk
  • Flooring
Show More

Instructions

    • 1

      Cut out insulation sections with a utility knife to fit along the sides of the trailer between the beams. Insulation also may be added to the ceiling and floor of your trailer.

    • 2

      Cut into the backside of the insulation with 1/2-inch spacings when fitting the insulation to curved areas within your horse trailer. Do not cut all the way through so that you can bend the insulation.

    • 3

      Secure the insulation with 2-inch aluminum tape. Attach edges of the insulation with the tape along the beams. Aluminum tape will withstand hotter temperatures.

    • 4

      Seal and caulk the roof's rivets and seams to prevent rain leakage. Another option is to install a seamless one-piece steel-reinforced roof made of fiberglass. This kind of roof is bolted to the side walls from the trailer's interior.