However the utility of attic ventilation fans is actually quite a controversial topic.
How to vent an attic fan.
Bathroom exhaust fans perform an important function by removing excess moisture from your home.
The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows.
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.
Whole house fans work on the principle of removing the hot and humid air out of the house.
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.
Adding attic vents is a simple matter of cutting holes and installing vents.
Do not use mechanical means electric attic fans.
The whole house fan is installed inside the attic between the living space and ceiling.
Options for venting a bathroom exhaust fan include best to worst.
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.
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.
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.
The downside of attic ventilation fans.
The master flow erv6 power roof vent is the master flow erv6 power roof vent is a great overall investment in attic ventilation.
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.
Good insulation reduces fan effectiveness.
An attic fan works by exchanging the hot air in your attic space for fresh air pulled through the vents.
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.
This will help to avoid premature damage to the shingles or mold building up in moist hot.
Photos 1 6 show how it s done.
Whole house fans powered attic 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.
Venting a homes attic is a very important best building practices will say 50 at the ridge and 50 at the soffits unobstructed.
It helps to cool your home temperatures and the attic by approximately 30 degrees.