Attic Temp Is 150

Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures.

Attic temp is 150.

An unventilated attic can reach 150 degrees in the heat of summer 50 degrees higher than it should be. If the absorptivity of the roofing material is 0 92 the model predicts that the maximum hourly temperature for the roof sheathing plywood is 140 f 60 c and the maxi mum predicted exterior roof membrane temperature is 150 f 66 c. They have done much of their testing in las vegas and phoenix where conditions are the worst and 150 degree attic temperatures are common. If your attic is not properly ventilated your cooling costs will not be as low as they should be because your system is constantly running to compensate for the excess heat.

However more often than not. The cooling load for a home air conditioner depends on the difference in temperature between the inside and outside air and reduction of attic temperatures from 155 degrees to 105 degrees f will result in a significant reduction in cooling load. 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. While these powered vents do effectively draw out the.

In some cases attic temperatures can reach above the 150 degree mark. And it can cause your air conditioner to work harder than it needs to and send your energy bills soaring with the temperature. An overheated attic can bake asphalt shingles on the roof and cause them to deteriorate. A standard powered exhaust vent turns on when the temperature inside the attic reaches a pre set limit and runs until the temperature drops.