How To Seal A Window Ac Unit

Narrow or hard to reach gaps measure the length of gaps that are 1 8 inch thick or smaller.

How to seal a window ac unit.

It provides an easy to paint surface once the job is done which helps to hide unsightly marks on the wall s surface. Most window air conditioners come with an accordion style flap attached to the sides to fill the open space. Stick the plastic to the tape taking care to seal off the window at every corner and side. Then you can cover the foam with a cover spread to prevent heat from escaping.

Continue reading below our video of the day. How to seal an air conditioner window gap. You can also use a cover spread on the face of the air conditioner to prevent heat from escaping through the air conditioner. Even extremely small gaps can leak air which reduces the efficiency of your air conditioner.

Smooth the caulk and wipe away. To fix this purchase some air conditioner foam seal at your local hardware store if there isn t any with your unit. Re close the window tightly. Most window air conditioners have an expanding curtain on either side to help seal any gaps between the window frame and the air conditioner but sometimes this seal isn t perfect.

If the gap is deep you may need to press two pieces into the gap to fill it completely. Step 3 examine the sash. Then lift the window and place the seal under the lip of the window. The best way to insulate window air conditioners is by using foam sealing strips to close off the crack between the window and the air conditioner.

Neglecting to fill the window gap with the foam seal makes your window unit work harder to control the indoor temperature and potentially lets moisture dust and insects enter your home as well. Press the caulk into the gap. So typically when you install a window air conditioner you have the window the upper part of the double hung window sits on top of the box and then it has sort of like wings that slide out the side of the air conditioner to kind of seal out the space between the air conditioner and the opening of the window correct. Press the plastic over the tape to ensure a good seal and effectively seal any remaining cold air that could enter your home through the window air conditioner.