Do I Need To Insukate Cold Air Return In Attic. Stop using your attic for storage. 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.
The exfiltration of warm interior air through your attic and the infiltration of cold outside air through your basement or crawl space could be to blame. Likewise when the air is only holding half of the water that it can hold then the humidity level is 50.
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.
At first it seems odd to add insulation for warmth and then purposely create ventilation holes for cold air to enter. Now that we know what humidity is we can talk about the dew point. If someone spends a lot of time in the garage insulating it may improve their comfort even if it doesn t lower any bills. But if you don t do this you re setting yourself up for moisture problems.
