Attic Temp 85 In House
What temperature should attic fan be set at.
Attic temp 85 in house. When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees. Luckily my wife and i were upstairs and hear the rafters crackling looked outside and saw the wall of fire and got our. This will use more energy and make your air conditioner work harder which will increase your summer utility bill. For most homes the biggest concern is the effect of attic temperature on living space comfort.
Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures. So my house burned down a couple of years ago. The consensus seems to be that if you have the maximum amount of insulation in your attic floor for your area lowering the temperature of the attic by 10 or even 20 degrees will have a minimal if any impact of actual heating and cooling costs. Take its temperature.
Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape. Excessive heat deteriorates items you store in the attic and can cause moisture problems in your house. Install electric ventilators and attic fans which remove hot air from an attic. The fire started on an outside wall went up the wall and into the attic space spread across the entire house in the attic with no smoke coming into the house until the ceiling was about to collapse which was far too late.
They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees. If your attic soars above 100 degrees and reaches the 150 mark its time to consult. Only about 10 of the hip roof is shaded so it gets plenty of direct sunlight. I m spending more money on running the dehumidifier year round than i previously was to heat the house with outside temperatures ranging between 5 f and 95 f attic temperatures range between 48 f and 92 f.
The closer you can get the max attic temp swings to ambient the better but it is really hard in existing housing stock especially when the existing roofing surface is nowhere near needing replacement. High temperatures inside your attic shorten the life span of shingles.