Attic Cooler Than House

Attic fans perform this ventilation by pushing hot air out into the environment while also pulling fresh cool air into the attic.

Attic cooler than house.

The ideal temperature outside is at least 5 degrees fahrenheit below the desired indoor temperature. But other factors impact this sort of thing too. Proper attic ventilation has year round benefits. Attic fansare most effectiveduring the hottest part of the day and they are usually controlled by a timer thermostat 2 or humidistat.

The result is a cooler attic space with plenty of air exchange. Regardless of what the insulation level is there will be some level of energy transfer from the warmer attic to the cooler house. In many houses it is impractical to increase the insulation in the attic. In summer the ideal is to have lots of air movement so the attic is as cool as possible.

In contrast whole house fansare most effective in the cooler temperatures of the evening and early morning. Which way does your house face. So everything else being equal any house would benefit from a cooler attic. Maybe but not always.

In this case the most reflective roofing material ivory ir selective metal tile is 23 4 f cooler than attic covered with dark shingles. The obvious benefit of increased ventilation in the warmer months is a lower attic temperature which can decrease cooling costs in the home.