Attic Ventilation Theory

However in pursuit of attic ventilation some people choose to install attic power ventilators.

Attic ventilation theory.

In theory balancing the venting system is important in order to maintain appropriate air pressure in the attic space. The same goes for attic ventilation. A powered attic ventilator or attic fan is a ventilation fan which regulates the heat level of a building s attic by exhausting hot air. A thermostat is used to automatically turn the fan off and on while sometimes a manual switch is used.

Foam tech creates superior insulation and environmental control solutions by installing safe cost effective and environmentally friendly polyurethane foams. The theory behind attic ventilation is to give that moisture a place to escape before it causes mold mildew rot or other problems. We have the capabilities to spray and inject a variety of foam systems to achieve a high r value while providing both effective vapor and air barriers. The theory is the same for your attic ventilation system.

Attic ventilation is a process of creating air circulation in the home. In theory these are excellent tools for circulating air in the attic and keeping the attic temperature low. An attic fan can be gable mounted or roof mounted. Attic ventilation in the winter.

In mixed climates ventilation serves either role depending on the season. While heat migrates in the summer because your attic is acting as a giant pressure cooker in the winter the attic space is colder allowing more room. It s essential for reducing moisture and preventing excessive heat. Having attic ventilation doesn t ensure the moisture gets ventilated away before it condenses on your expensive roof and wall surfaces.

A key benefit of venting the attic is that the approach is the same regardless of how creative your architect got with the roof. Additional vents are required to draw in fresh air as the hot air is exhausted. Because the roof isn t in play here it doesn t matter how many hips valleys dormers or gables there are. You would think that venting an attic would be counterintuitive in the winter or cold months.