Attic Ventilation Theory

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Attic ventilation theory.

You would think that venting an attic would be counterintuitive in the winter or cold months. An attic fan can be gable mounted or roof mounted. 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.

In theory these are excellent tools for circulating air in the attic and keeping the attic temperature low. Having attic ventilation doesn t ensure the moisture gets ventilated away before it condenses on your expensive roof and wall surfaces. Additional vents are required to draw in fresh air as the hot air is exhausted. 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.

The theory behind attic ventilation is to give that moisture a place to escape before it causes mold mildew rot or other problems. Attic ventilation is a process of creating air circulation in the home. Because the roof isn t in play here it doesn t matter how many hips valleys dormers or gables there are. However in pursuit of attic ventilation some people choose to install attic power ventilators.

Foam tech creates superior insulation and environmental control solutions by installing safe cost effective and environmentally friendly polyurethane foams. Learn here about ventilation processes products common problems solutions. A thermostat is used to automatically turn the fan off and on while sometimes a manual switch is used. The same goes for attic ventilation.

In theory balancing the venting system is important in order to maintain appropriate air pressure in the attic space. 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. Attic ventilation in the winter. The problem with this design is it is wishful thinking.