Attached garages are a convenience for Central Arizona homeowners, but they can also be a hazard to you and your family’s health. Air from your garage can seep into your house if it’s not properly sealed, resulting in pollutants such as carbon monoxide infiltrating your home and reducing your indoor air quality.What you smell and what you can’t
If you’ve caught an occasional whiff of a garage odor, that’s not a good sign. It means that garage air is leaking inside and mixing with your indoor air. 

After stopping your vehicle engine, it may take as much as an hour for the engine to cool down. While it’s hot, fumes from transmission fluid, oil and burned gasoline or diesel fuel are mixing with the air. If you smell these odors in your home, there are others accompanying them that you can’t smell. Neither carbon monoxide nor benzene have an odor. Both are dangerous gases and both are produced by fuel-burning engines. In fact, vapors you smell and can’t smell are not just annoying but a health hazard as well.

What to do
If air from your garage is leaking inside your home, it needs to stop. Here are a few ways to remedy the problem:

  • Use caulk or a foam sealant to seal cracks. Also seal along the junction where the shared garage and home wall meets the ceiling.
  • If there’s a room over the garage, seal all around the area where walls and ceiling meet.
  • Replace the weatherstripping and door sweep on the garage access door.
  • Install a small exhaust fan in an outside wall to vent air from your garage to the outside.
  • Remove mowers, trimmers and any combustible engine equipment to an outside storage area.

The air from your garage can present an indoor air quality hazard. Make sure yours doesn’t. If you need more tips on keeping your home’s air healthy, contact us at Wolff Mechanical. We’re always happy to answer your home comfort questions.

Our goal is to help educate our customers in the Phoenix Valley area of Arizona about energy and home comfort issues (specific to HVAC systems). 

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