Do I Need To Insukate Cold Air Return In Attic

When the air is holding as much water as it can possibly hold the humidity level is said to be 100.

Do i need to insukate cold air return in attic.

Continuous air space between. Plan to pull up the flooring and layer new insulation on top of the old. First building codes in many areas require that the cold air return line gets external insulation and therefore you will need to leave a gap for the insulation around the duct return line. When you add insulation to attic rafters and attic floors it s important to maintain at least a 1 in.

Due to your attic s location at the top of your house it can be a major location for energy loss especially if you lack sufficient insulation. If someone spends a lot of time in the garage insulating it may improve their comfort even if it doesn t lower any bills. Likewise when the air is only holding half of the water that it can hold then the humidity level is 50. Now that we know what humidity is we can talk about the dew point.

So the real cooling load for the house is likely to be no more than 1 1 3 tons but it could even be on the order of 3 4 tons with the air leaks to the attic sagging attic insulation are corrected. The insulation will keep the naturally hot or cold air in the garage and the artificially warmed or cooled air in the room above it. Running a metal cold air return duct between studs requires knowledge of both hvac systems and the components involved in framing. Stop using your attic for storage.

The remaining 2 tons of capacity is at least 1 5x oversized for the actual 1 load. The primary reason to insulate any part of the home is to provide a thermal barrier between conditioned heated or cooled interior space and the. Does a garage attic need to be insulated. But if you don t do this you re setting yourself up for moisture problems.

Because the simplest and cheapest way to insulate an attic is to add material to the floor. Homeowners also should insulate a garage completely including in the attic above it. At first it seems odd to add insulation for warmth and then purposely create ventilation holes for cold air to enter.