4 Reasons Not to Seal a Garage Door With Foam for a Generator Cord

Carbon monoxide is odorless and passes through foam seals Even compressed foam cannot block the gas. A partially open door with a foam strip still allows enough air exchange to put your family at risk.

The garage door can damage the extension cord The door can pinch or wear through the cord insulation over time, creating a fire or shock hazard.

Generator exhaust must stay far from any building opening Exhaust needs to be well away from windows, doors, and vents. A foam seal does not change that requirement.

The only safe cord entry is a through-wall pass-through Professionally installed pass-throughs are the correct solution. Better yet, keep the generator entirely outside and away from the structure. Do not take shortcuts here.