An unventilated attic can reach 150 degrees in the heat of summer 50 degrees higher than it should be.
Normal attic temperature in summer.
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.
Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures.
Hot summer weather poses the opposite problem for maintaining recommended attic temperatures.
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.
And it can cause your air conditioner to work harder than it needs to and send your energy bills soaring with the temperature.
In some cases attic temperatures can reach above the 150 degree mark.
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.