Air seal your garage with low-VOC sealant – HHWG

Air seal your garage with low-VOC sealant


  • Why is this important?

  • Garages are often where car exhaust accumulates and household chemicals are kept. Emissions and offgassing from these sources enter the living area whenever the door is opened or through unsealed wall openings. While this is a common feature in homes it presents a health challenge in trying to keep pollutants out of the home.

  • What should I do?

  • Ensure the living space is sealed from the garage. The door should be weatherstripped and you should feel no airflow when shut. The wall separating the garage from the living space is also important. Be sure there are no gaps at the ceiling and corner joints. Use foam air sealant at the bottom of the wall where it meets the foundation. You can hire someone to air seal as part of an attic and/or basement project, or do it yourself. Retail air sealing products typically contain a high amount of VOCs. The product below is Greenguard Gold Certified and emits the lowest VOCs we’ve found for DIY.


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