Attic Temperature In Summer Texas

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Attic temperature in summer texas.

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. The tenwolde model predicts that wet plywood sheathing dries quickly under warm summer conditions. Louis and often wondered what the temps are in attics here in the dead of summer. Summer attic air temperatures with reflective roof peak at or slightly above outdoor air ambient.

Now if the ridge vent is only partial or if the attic air temperature is excessive 20 degrees higher than the outside air fans may prove beneficial pick the right fan. Dropping the temperature from 120 150 degrees to roughly the same as the outside temperature will save you enough on your power bill to offset the purchase and installation charge. For example if plywood with a moisture content of 60 percent is. I would guess 130 140 degrees as an estimate.

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. Hot summer weather poses the opposite problem for maintaining recommended attic temperatures. Attic temperature depends on the amount of solar radiation construction details and the rate of ventilation. The temperature in your attic can reach 150 degrees on a hot summer day a situation that if left unchecked can drive up cooling costs by as much as 40 percent.

Control your attic temperature in summer one of the toughest spaces to maintain a consistent temperature is in your attic especially in the summer. Installing attic vents if you don t already have them is another way to assist in the movement of hot and cold air out of your attic. Ing temperature histories are also influenced by the radiant energy absorptivity of roofing surface the pitch of the roof and the presence of insulation and attic ventilation. Providing half air change per.

If your attic has less than r 22 insulation 7 inches of fiberglass or rock wool or 6 inches of cellulose you should add more. An overheated attic can bake asphalt shingles on the roof and cause them to deteriorate. And it can cause your air conditioner to work harder than it needs to and send your energy bills soaring with the temperature. Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures.