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.
Texas attic temperature.
Attic temperature depends on the amount of solar radiation construction details and the rate of ventilation.
Summer attic air temperatures with reflective roof peak at or slightly above outdoor air ambient.
An unventilated attic can reach 150 degrees in the heat of summer 50 degrees higher than it should be.
Summer attic air temperatures with old terra cotta colored asphalt shingles peaked at 140 to 145 at 18 above the blown in fiberglass insulation layer at the attic floor.
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.
On a typical summer day with an outdoor temperature between 90 to 100 degrees the temperature in an attic space without radiant barrier can easily reach 140 degrees.
An overheated attic can bake asphalt shingles on the roof and cause them to deteriorate.
However more often than not.
Calculations indicate that on a july day in texas a ventilation rate of one air change per minute for a typical attic using 95 degree f air will lower the peak attic temperature to about 101 degrees f.
Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures.
Providing half air change per minute will lower the temperature to about 106 degrees f.
And it can cause your air conditioner to work harder than it needs to and send your energy bills soaring with the temperature.
However more often than not.
Live attic temperatures in frisco texas real time live attic temperatures in a home in frisco texas with radiantguard radiant barrier attic insulation and ventilation enhancements.