A DIY Guide to Insulating Your Entire Garage in One Day.
Clear the Walls
Seal Gaps and Cracks
Insulate the Ceiling
Install Fiberglass Insulation
Cover with Drywall
Insulate the Garage Door
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How to Insulate a Garage in 6 Easy Step
✤ Remove tools and equipment from the walls
✤ Clean up dirt and stud cavities
✤ Remove tools and equipment from the walls
✤ Clean up dirt and stud cavities
Step 1: Clear the Wall
Step 1: Clear the Wall
✤ Shake expanding foam before use
✤ Attach straw, hold can upside down, and spray gaps 50% full.
✤ Allow 5-15 minutes to expand
✤ Shake expanding foam before use
✤ Attach straw, hold can upside down, and spray gaps 50% full.
✤ Allow 5-15 minutes to expand
Step 2: Seal Gaps and Crack
Step 2: Seal Gaps and Crack
✤ Staple insulation to the sides of the studs.
✤ Use a piece of wood as a guide and cut insulation with a utility knife.
✤ Tuck and staple the insulation along the studs.
✤ Staple insulation to the sides of the studs.
✤ Use a piece of wood as a guide and cut insulation with a utility knife.
✤ Tuck and staple the insulation along the studs.
Step 3: Install Fiberglass Insulation
Step 3: Install Fiberglass Insulation
✤ Use coarse-thread screws and glue to attach drywall to studs.
✤ Space screws about 8 inches apart.
✤ Do not leave insulation paper exposed; it's a fire hazard.
✤ Use coarse-thread screws and glue to attach drywall to studs.
✤ Space screws about 8 inches apart.
✤ Do not leave insulation paper exposed; it's a fire hazard.
Step 4: Cover with Drywall
Step 4: Cover with Drywall
✤ Use thicker R-40 insulation.
✤ Install rafter vents with a staple gun, spacing staples 8-10 inches apart.
✤ Cut insulation to fit between rafters, with the paper side facing down.
✤ Use thicker R-40 insulation.
✤ Install rafter vents with a staple gun, spacing staples 8-10 inches apart.
✤ Cut insulation to fit between rafters, with the paper side facing down.
Step 5: Insulate the Ceiling
Step 5: Insulate the Ceiling
✤ Determine your door type: steel, wood frame-and-panel, or flat.
✤ Use flexible insulation or foam board based on the door type.
✤ Determine your door type: steel, wood frame-and-panel, or flat.
✤ Use flexible insulation or foam board based on the door type.