While detached garages and carports were commonplace before the 1960s, attached garages have become a standard convenience in most modern homes. Because automobiles give off pollution, your vehicle can emit a high level of combustible pollutants, both when starting your car in the garage, as well as when parking it. Even after the car is turned off, it will continue to give off emissions for an hour or more. In addition to other air quality hazards, vehicle exhaust fumes contain carbon monoxide (CO). Odorless, invisible and tasteless, CO can cause poisoning and even death.
Because air moves through small gaps, crevices and cracks in the walls between your garage and your home, ensuring that fumes from the garage such as CO do not enter your home is crucial. In new homes, the contractor should:
- Ensure proper weatherstripping in the doorway between the attached garage and the house.
- Make sure the garage ceiling and common wall are airtight before any insulation or drywall is installed on the garage side.
- Seal all air openings between the home and the garage, such as holes for wiring, vents or plumbing.
- Seal all wall-to-wall and wall-to-floor junctures. In older homes, it may be more difficult to find and seal leaks, and to prevent air movement from the garage to the house.
Homeowners with older homes should:
- As with new homes, ensure proper weatherstripping around the house-to-garage door, to prevent fumes from the garage from entering the home.
- For homes with no installed drywall between the home and garage, fill holes and provide insulation by applying spray foam insulation between the two areas.
- Seal the ceiling space between the garage and any rooms above. This will help stop the flow of airborne contaminants such as CO from entering your home, as well as keeping the home warmer and reducing utility bills.
With both older and new homes, ensure proper ventilation in the attached garage, as well as installing an exhaust fan, to make sure the garage’s air pressure stays lower than inside your house. This way, air movement will go from inside to outside, rather than vice versa.
For more expert information and advice about protecting your home from fumes from the garage, please contact us at?Robert R. McGill Air Conditioning, Inc. Family owned and operated, we have been proudly serving residential and commercial equipment in eastern Palm Beach, northern Broward and southern Martin counties since 1979.
Our goal is to help educate our customers in Palm Beach County, Florida about energy and home comfort issues (specific to HVAC systems).?
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Filed under: Garage
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