When July temperatures push past 95°F in St. Louis, an uninsulated garage can easily hit 110°F or more. That heat bleeds into your home, strains your air conditioner, and makes the garage unusable as a workspace.
Start With the Door
The garage door is the largest opening in your home, and a single-layer steel door is basically a radiator in summer. Upgrading to an insulated door with an R-value of 12 or higher makes an immediate, noticeable difference. If a new door isn't in the budget, insulation panel kits for existing doors are an affordable middle step.
Seal the Gaps
Check the weather seal along the bottom of the door and the perimeter trim. Cracked or flattened seals let hot air pour in. Replacing bottom seals and side weatherstripping is a quick, inexpensive fix we handle on most service calls.
Ventilation Matters
Hot air rises — a simple exhaust fan or passive roof vent lets trapped heat escape instead of baking your garage all afternoon.
Thinking about an insulated door upgrade? Straight Up Garage Doors installs energy-efficient doors across the St. Louis metro. Call (314) 788-1106 for a free estimate.