Attic Temperature In Summer

Summer attic air temperatures with old terra cotta colored asphalt shingles peaked at 140 to 145 at 18 above the blown in fiberglass insulation layer at the attic floor.

Attic temperature in summer.

Summer attic air temperatures with reflective roof peak at or slightly above outdoor air ambient. An overheated attic can bake asphalt shingles on the roof and cause them to deteriorate. When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees. The results of this study showed that during the summer in illinois attic ventilation could lower attic air temperature by 28 f 15 5 c and sheathing temperature by almost 10 f 5 5 c.

Hang an outdoor thermometer in your attic making sure its range reaches at least 130 degrees fahrenheit. And it can cause your air conditioner to work harder than it needs to and send your energy bills soaring with the temperature. If you ve ever had to go digging through your attic in the summer to try and find something you realize immediately the temperature in your attic is noticeably hotter. Hot summer weather poses the opposite problem for maintaining recommended attic temperatures.

However attic ventilation had only a minor effect on roof shingle temperature. Attics can reach temperatures of 150 to 160 degrees f during a summer day although outside air temperatures are only 95 to 97 degrees f. In some cases attic temperatures can reach above the 150 degree mark. Of course some environments are much hotter than others so this will be the perfect time to measure out how warm your attic will get during the most heated of seasons.