Attic Temperature Vs Outside Temperature

I hit 130 degrees in my attic when the outside temperature was.

Attic temperature vs outside temperature.

Should there be a difference between a 78 degree day and a 98 degree day. 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. For an indoor temperature of 68 f and an outdoor temperature of 8 f the temperature at the interface between the batt and the foam will be 27 f effect of indoor and outdoor air films is omitted.

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. The technique applies to any number of component layers in an assembly. 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. Warner is right that the attic should be close to the outside temp.

Your insulating and heating cooling the house not the attic. A check the temperature an hour before sunrise. Table 1 shows the calculation for the example in figure 1. What should be the difference between outside inside temperature of an attic on a summer day versus a winter day.

However more often than not. 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.