Attic Temperature Vs Outside Temperature

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

Attic temperature vs outside temperature.

Warner is right that the attic should be close to the outside temp. A good sign is when you open your attic in the winter and you don t see any frost on the nails poking through. Interior attic air exterior air inner and outer sheathing and internal rafter temperatures of black and white shingled chambers were monitored. I have recently added a ridge vent to my roof and have also been taking temperature readings.

What should the attic temperature be relative to the outside and house temperatures assuming a new supposedly well insulated house. Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures. Ideally you don t want it any hotter than it is outside but reality generally prevent this from happening. Your insulating and heating cooling the house not the attic.

Should there be a difference between a 78 degree day and a 98 degree day. 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. If your attic soars above 100 degrees and reaches the 150 mark its time to consult professionals. Simply undertstand that the insulation in your inner envelope ceiling attic floor must insulate the inner envelope of your house living area against whatever temp is in your attic.

I hit 130 degrees in my attic when the outside temperature was. Temperatures were measured using thermocouples and recorded over a 3 year period from october 1991 through september 1994 using a datalogger multiplexer device.