Do it Yourself Garage Wall Insulation

Written by kevin mcdermott
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If you have an uninsulated garage that you want to heat, adding insulation is a must. Without it, a large portion of your heating bill will seep through the walls. The process of insulating garage walls is the same as that for insulating a house wall. The insulation is installed between the studs, and drywall is installed directly over that. A standard garage will have 16-inch on-centre studs. If yours are different, see an insulation supplier about getting a non-standard width of insulation.

Skill level:
Moderate

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Things you need

  • Tape measure
  • Long-sleeve shirt
  • Gloves
  • Particle mask
  • Level
  • Razor knife
  • Paper-backed fibreglass insulation
  • Power stapler

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Instructions

  1. 1

    Measure the wall from top to bottom alongside one of the studs. Measure it from the top of the floor plate to the bottom of the ceiling plate.

  2. 2

    Put on a long-sleeved shirt, gloves and particle mask. Unroll a strip of insulation on the floor to the length of the measurement you took of the wall. Cut it off at that length, using a level to guide the razor knife for a straight cut.

  3. 3

    Hang the insulation between two of the studs, filling the space. The paper-covered side of the insulation should face out at you.

  4. 4

    Affix the insulation to the studs, shooting staples through the paper edges of the insulation every 12 inches.

  5. 5

    Cut away the insulation around any electrical boxes or other obstructions on the wall, using a razor knife.

  6. 6

    Repeat for each space between the studs for each exterior wall of the garage.

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