Brick house, there is an air gap of about an inch?

between the outer brick wall (structural) and the inner gypsum and stucco wall which opens into the basement all around. Cold air pours into the basement, chilling it rapidly. Is there any reason this was intentionally left open like this or would it hurt anything to close up the gap in the bottom of the walls?

2 Answers

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  • 1 month ago

    its a wall cavity ..there should be air bricks in exterior wall ...keeps house dry ..no reason you should not blank it off in basement ...here in uk our houses now have a 4" cavity ...filled with insulation

  • equal
    Lv 7
    1 month ago

    its a cavity to break the transfer of temperature inside some you can fill with insulation like rock wool but its underground I presume it may be a vent for fresh air to circulate

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