Attic Temperatures In Middle Of Summer

The attic should already be vented both high and low as required by the general building construction industry.

Attic temperatures in middle of summer. An unventilated attic can reach 150 degrees in the heat of summer 50 degrees higher than it should be. The summer sun beats down on the roof of your home pushing attic temperatures over 120 degrees. Actually any temperature over the design temp of the a c system is creating a heat problem. And that can result in real energy cost savings.

This super hot air eventually radiates into the living space resulting in warmer interior temperatures. 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. If you have a dark color roof on your house the heat buildup in the attic can be unbearable. Now as far as adding attic venting because of high temps causing problems with the heat load of the house that would be a good question.

Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures. In some cases attic temperatures can reach above the 150 degree mark. New study finds attic temperatures can pose serious risk if you ve ever been up in your attic on a sunny summer day you know the meaning of hot. When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees.

An overheated attic can bake asphalt shingles on the roof and cause them to deteriorate. If it s 90 degrees outside the attic temperatures shouldn t exceed 110 according to home inspector jamison brown of amerispec home inspection services in poquoson. Summer attic air temperatures with reflective roof peak at or slightly above outdoor air ambient. Hot summer weather poses the opposite problem for maintaining recommended attic temperatures.

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. Well pity your home s electrical wiring it has to perform in this superheated environment day. 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.