How to Insulate & Raise the Basement Temperature

Insulated basements make appliances work less to heat during the winter.
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Yes, your basement can be warmer in cold weather. The temperature reading for the basement depends on how deep the room sits above the ground, how much of your heated house covers the underground opening, and the house heating system. If, after looking at these conditions, you still want to insulate your personal underground cave to make it toastier, the process is quite simple. You'll need some basic tools and a vehicle with space to transport the insulation.

Step 1

Remove any old basement windows. Install new energy efficient model replacement windows following the manufacturer's instructions.

Step 2

Spray the foam to seal around the edges of the window openings to eliminate any outside drafts.

Step 3

Attach the nails to pairs of opposing ceiling floor joists. Wrap the metal wire around the nails to create a cradle holder for the basement ceiling insulation batting.

Step 4

Stuff the insulation batting between the floor joists and above the metal wire until the insulation is locked in place.

Step 5

Nail the boards horizontally to the basement sill plate.

Step 6

Nail more boards horizontally around the base of the basement floor. Avoid resting the boards on the basement floor, but attach the boards as close as possible to the floor.

Step 7

Nail additional boards around the edges of the basement windows. Avoid nailing into the replacement window trim.

Step 8

Staple the rolls of wall insulation every 4 to 6 inches along the row of boards installed along the basement sill.

Step 9

Use duct tape or the double-stick tape pre-attached to the sides of some insulation rolls to tape together the insulation.

Step 10

Staple the wall insulation every 4 to 6 inches along the lower boards near the basement floor. Trim any excess for a neat look.

Step 11

Staple the insulation as needed to the boards around the basement windows.

Step 12

Cut the center of the window batting out to expose the window opening.

Step 13

Sweep the floor to collect any dust and dirt. Use a mop to apply the sealer to the basement floor. Begin in one corner and work toward the exit door.

Step 14

Apply a second coat to the basement floor after the first coat dries. Read the manufacturer's directions to determine the ideal drying times.

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