Cold Air Coming From Walls

Cover your windows with thermal draperies.

Cold air coming from walls.

Gap around just six ceiling boxes is the equivalent of cutting a 4 in. With cold air inside the wall and warm air on each side in the house heat moves through the drywall which has a low r value and warms up the air in the cavity. In fact a mere 1 8 in. Hole in your ceiling.

Air infiltration occurs when outside air finds its way inside your house. You can expect higher heating and cooling bills if you have a lot of air infiltrating into your home. Even if a wall or ceiling is sufficiently insulated the insulation may have been cut away to make room for the electrical boxes which means these spots become conduits for cold air to pass through from the outside. As that warmed air leaves the interior wall cold attic air moves into the cavity to take its place.

The reason for this is simple. The small air gaps around electrical boxes on exterior walls and ceilings leak more air than you might imagine. It s winter and your home is closed up tight to keep out the cold air but you still feel a draft. When you combine that with the.

Or in the summer when the hot 100 f air finds its way into your cool inside living space. The warm air then rises into the attic a process called the stack effect. Where could it be coming from. Department of energy s doe oak ridge national laboratory.

Think of the amount of heat you d lose. And on walls where there is no insulation or insufficient insulation cold air circulating inside the wall finds a perfect pathway into living.