Pole Barn Attic Ventilation

Pole barn insulation is a core part of temperature control and ventilation.

Pole barn attic ventilation.

Condensation occurs when warm moisture laden air contacts a cooler surface such as the underside of your roof steel. Since lower temperature air cannot hold as much moisture as warmer air the excess humidity turns into water droplets. Since you cannot increase the amount of venting in your soffits as you have none you ll need help from power vent fans. Additional doors and windows will both help increase the general flow of air through your pole barn.

Out with the moist stale air. To understand how proper ventilation works here s the anatomy of a basic passive pole barn ventilation system. Warm air has the ability to hold more moisture than cold air. The primary purpose of pole barn ventilation is to prevent condensation moisture build up.

When this warmer air contacts cold surfaces in your pole barn condensation forms since the air loses its ability to retain as much moisture. A literal example of this is that 45 air can hold 1 3 the water vapor that 75 air can. Attic vent fans can be hard wired and equipped with a thermostat and or humidity sensor so they automatically cut on at a preset moisture level or temperature. The process starts with warm moist air rising inside your pole barn.

In the case of a lined building with a ceiling air is rising in the building s attic. Lack of proper pole building ventilation becomes even a greater issue when an enclosed attic space is present. Don t skip features that can increase airflow. Mike the pole barn guru responds.