How To Vent An Attic Fan

As a certified licensed home inspector it is not correct to say too much ventilation is bad for an attic unless rain moisture is getting in.

How to vent an attic fan.

Attic ventilation fans whether hard wired or powered by their own solar panels seem like a low cost and effective way to help keep your house cool. When venting a bathroom exhaust fan make sure to vent the air to the outside rather than into your attic where it can cause mold and mildew to form. Attic fans are intended to cool hot attics by drawing in cooler outside air from attic vents soffit and gable and pushing hot air to the outside. Bathroom exhaust fans perform an important function by removing excess moisture from your home.

Whole house fans work on the principle of removing the hot and humid air out of the house. It helps to cool your home temperatures and the attic by approximately 30 degrees. Adding attic vents is a simple matter of cutting holes and installing vents. The master flow erv6 power roof vent is the master flow erv6 power roof vent is a great overall investment in attic ventilation.

Mark the roof venting locations from the attic where you can see the rafters and avoid placing roofing vents over them. It can efficiently remove a larger volume of hot and or humid air from your attic when compared to static ventilation. But before you cut any holes plan the locations of the attic vents. Venting a homes attic is a very important best building practices will say 50 at the ridge and 50 at the soffits unobstructed.

This in turn can help save money on your heating and cooling costs. Do not use mechanical means electric attic fans. However the utility of attic ventilation fans is actually quite a controversial topic. Good insulation reduces fan effectiveness.

Whole house fans powered attic fans. The whole house fan is installed inside the attic between the living space and ceiling. The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows. These fans may be controlled by a switch or a thermostat which detects heat build up in the attic space and automatically exhausts the attic space.

The downside of attic ventilation fans. One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home. Fans and vents may be installed on the roof system that will draw the air out of the attic space and exhaust it to the exterior. However if your attic has blocked soffit vents and is not well sealed from the rest of the house attic fans will suck cool conditioned air up out of the house and into the attic.

An attic fan works by exchanging the hot air in your attic space for fresh air pulled through the vents.