Attic Cooler Than House

In many houses it is impractical to increase the insulation in the attic.

Attic cooler than house.

But other factors impact this sort of thing too. Which way does your house face. If you ve got an older home or poorly installed insulation there s a good chance upping your r value and air sealing in the attic will make your upstairs cooler and more comfortable in summer. In contrast whole house fansare most effective in the cooler temperatures of the evening and early morning.

So everything else being equal any house would benefit from a cooler attic. Insulation can only slow and not stop the energy transfer. Proper attic ventilation has year round benefits. In summer the ideal is to have lots of air movement so the attic is as cool as possible.

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. The obvious benefit of increased ventilation in the warmer months is a lower attic temperature which can decrease cooling costs in the home. The ideal temperature outside is at least 5 degrees fahrenheit below the desired indoor temperature.

In this case the most reflective roofing material ivory ir selective metal tile is 23 4 f cooler than attic covered with dark shingles. Maybe but not always.