Average Attic Temp In Summer

What should be the difference between outside inside temperature of an attic on a summer day versus a winter day.

Average attic temp 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. I hit 130 degrees in my attic when the outside temperature was. An overheated attic can bake asphalt shingles on the roof and cause them to deteriorate. 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.

One of the toughest spaces to maintain a consistent temperature is in your attic especially in the summer. However more often than not. Hot summer weather poses the opposite problem for maintaining recommended attic temperatures. 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. The cooling load for a home air conditioner depends on the difference in temperature between the inside and outside air and reduction of attic temperatures from 155 degrees to 105 degrees f will result in a. Reducing attic temperatures in the summer aug 14 2017 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. Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures.

An unventilated attic can reach 150 degrees in the heat of summer 50 degrees higher than it should be. Control your attic temperature in summer. I have recently added a ridge vent to my roof and have also been taking temperature readings. January 8 2010 5 15pm text size.

What should the attic temperature be relative to the outside and house temperatures assuming a new supposedly well insulated house.