Should You Blow Cold Air Into Attic

Measure the temp between the return and supply in the attic if you can.

Should you blow cold air into attic.

Sometimes the hissing means a low charge or other issues but not always. Blown in insulation flows down around wall studs. 1 the first is out of a white pvc pipe that has an odd section sticking straight up but it s completely open so the cold air is coming out of the top of that. In cold weather you may see frosty areas in the insulation caused by warm.

You should have about. The ceiling design temp should be the greatest attic temp delta t not the ambient air temps. You may have more leaks somewhere. The closer you can get the max attic temp swings to ambient the better but it is really hard in existing housing stock especially when the existing roofing surface is nowhere near needing replacement.

Whether using loose fill or batts put the vapor barrier closest to the warm side of your installation where hot moist air would get in facing the house s interior in cold climates beneath floor insulation and the attic s interior in hot climates on top of floor insulation. Insulation efficiently fills gaps. We include blown in attic insulation pros and cons but we can t recommend blown in fiberglass or cellulose as your best insulating choice. Even though most of the gaps spilling warm air into your attic are buried in insulation you ll still see evidence of the escaping air.

Materials can be layered for added protection. When you decide to trade in your room air conditioner for central air you ll have decisions to make including where. Bottom has gas furnace and on top is the ac air handler. Should it be open.

That vertical pvc pipe on the drain line i noticed it s blowing cold air into the attic. Check the return too to make sure you are not pulling attic air into the system. Can you put your air conditioning unit in the attic with blown in insulation. Blown in fiberglass is considered flame resistant.

Ignore that duct tape i noticed the aluminum foil has gaps i need to re tape those to prevent cold air leaks around the evaporator bo thanks. I went up into the attic to investigate and i did notice that in 2 places labeled with red arrows there is ice cold air simply blowing out from the air handler into the attic.