Attic Moisture Fan

A powered attic ventilator has a different purpose.

Attic moisture fan.

It is designed to lower the temperature of an attic by exhausting air from the attic and replacing attic air. This ventilation process helps lower the attic air temperature and reduce humidity levels thus reducing the. In summer the thermostat operates the fan when the attic temperature reaches a preset level usually 90 to 95 degrees f. This american designed fan is designed to reduce attic temperatures and remove destructive moisture thus making your home more comfortable and reducing the load on your hvac system and lowering your.

The short answer to this very involved question and the pages of temperature and humidity level data you sent is yes there is a risk that moisture from humid air in your attic will condense on. So they equalize pretty quickly. This will help to avoid premature damage to the shingles or mold building up in moist hot. In winter the humidistat operates the attic fan when the relative humidity exceeds a preset.

Humidity settings are another issue that can make or break the performance of your heating and cooling systems and your attic ventilation. An attic fan changes the air regularly so moisture doesn t get a chance to settle and do damage. Two main types of attic fan there are two devices commonly called attic fans. Simply by sealing the various possible paths of air leakage already discussed infiltration will be reduced therefore restricting the movement of air and eliminating the stack effect.

Unlike a ventilation fan a whole house fan an attic mounted fan that exhausts air from a home at night is designed to cool a house that is to lower the indoor temperature. By adding moisture to the lower floor you increase the partial pressure of the water vapor which pushes it to areas of lower vapor pressure like the attic. The whole house fan and the attic venting fan. How is an attic fan controlled.

The normal indoor humidity range in winter should be 15. The ideal way to control the operation of an attic fan is with a thermostat and a humidistat. An attic fan works by exchanging the hot air in your attic space for fresh air pulled through the vents. The difference in the two spaces is the dry bulb temperature.

After moisture penetration is controlled as best as possible the next approach to reducing attic moisture is by controlling air infiltration.