Attic Temperature Vs Outside Temperature

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Attic temperature vs outside temperature.

Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures. Your insulating and heating cooling the house not the attic. Interior attic air exterior air inner and outer sheathing and internal rafter temperatures of black and white shingled chambers were monitored. 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.

I have recently added a ridge vent to my roof and have also been taking temperature readings. 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. I hit 130 degrees in my attic when the outside temperature was. If your attic soars above 100 degrees and reaches the 150 mark its time to consult professionals.

What should the attic temperature be relative to the outside and house temperatures assuming a new supposedly well insulated house. A good sign is when you open your attic in the winter and you don t see any frost on the nails poking through. Ideally you don t want it any hotter than it is outside but reality generally prevent this from happening. A check the temperature an hour before sunrise.

Warner is right that the attic should be close to the outside temp. What should be the difference between outside inside temperature of an attic on a summer day versus a winter day.