However more often than not.
Normal attic temperature in summer.
Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures.
An overheated attic can bake asphalt shingles on the roof and cause them to deteriorate.
When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees.
An unventilated attic can reach 150 degrees in the heat of summer 50 degrees higher than it should be.
And it can cause your air conditioner to work harder than it needs to and send your energy bills soaring with the temperature.
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.