How To Insulate a New Window

Whether you are building a new home or renovating your existing structure, an important consideration is insulation. Most people recognize that they need to insulate attic and crawlspaces to save on energy. Walls are also important to insulate. Many people, however, fail to insulate around their doors and windows.

Things You'll Need

• Batt insulation
• Shim or long screwdriver
• Razor knife

Instructions

1. Cut several strips of batt insulation with a razor knife. These strips should be 3 or 4 inches wide and 3 to 6 feet long.

2. Use a wooden shim, screwdriver or other similar tool to push the insulation into the space between the window and frame. There should be a small gap created by the shim.

3. Fill any gaps that are accessible from the inside and the outside of the home. You may be able to fit insulation between the window buck (the frame created in the opening for the window) and the wood frame of the house.

4. Secure the interior molding on the inside of the home. This will hold the insulation in place and hide it from view. If you put dry wall all the way to the window, the drywall will serve the same purpose.

5. Apply exterior metal (aluminum) to the exterior of the home to protect it from the elements. This will also protect and cover the insulation.

Tips & Warnings

• Although it is generally recommended that insulation be left fluffy, it is not important here. The small space being insulated does not allow for this. Foam insulation is another option for tight-fitting windows. This type is a spray-in insulation that expands.

• Exterior trim is a vital part of protecting your home. If you are not skilled in the process, it is best left to leave it to professionals.