Attic Temperatures In Middle Of Summer

The summer sun beats down on the roof of your home pushing attic temperatures over 120 degrees.

Attic temperatures in middle of summer.

This super hot air eventually radiates into the living space resulting in warmer interior temperatures. The attic should already be vented both high and low as required by the general building construction industry. 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. An overheated attic can bake asphalt shingles on the roof and cause them to deteriorate.

An unventilated attic can reach 150 degrees in the heat of summer 50 degrees higher than it should be. New study finds attic temperatures can pose serious risk if you ve ever been up in your attic on a sunny summer day you know the meaning of hot. Summer attic air temperatures with reflective roof peak at or slightly above outdoor air ambient. If you have a dark color roof on your house the heat buildup in the attic can be unbearable.

Yet in summer the attic ventilation helps to keep attic temperatures down. In some cases attic temperatures can reach above the 150 degree mark. And that can result in real energy cost savings. 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.

Now as far as adding attic venting because of high temps causing problems with the heat load of the house that would be a good question. Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures. Well pity your home s electrical wiring it has to perform in this superheated environment day. 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.

Actually any temperature over the design temp of the a c system is creating a heat problem. Hot summer weather poses the opposite problem for maintaining recommended attic temperatures. When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees.