When using plastic make sure the attic fan is properly sealed on all edges.
How to seal off attic fan.
The whole house fan is installed inside the attic between the living space and ceiling.
The attic has about 2 3 of blown in cellulose is pitched i don t know the pitch but it s about average for a typical suburban house and has a gable vent on each end l shaped house.
Turn off the electricity to attic fan by unplugging or by disconnecting the hard wire from the junction box.
Seal off any air leaks at the ceiling.
The house was constructed in 1958 and is 2x6 wood frame on 16 centers.
I believe the best solution may be a combination of radiant barrier to stop the sun s heat from warming up the attic structure to begin with along with proper ventilation attic exhaust fan s insulation and air sealing.
The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows.
Recessed can lights no easy solution cut a 6 in.
Most people just add insulation to their attic this will not stop the escaping warm air.
This prevents air dust movement from living space to attic.
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.
It reduces air leakage through the whole house attic fan saving the homeowner heating and cooling loss and energy costs.
The battic door whole house attic fan ceiling shutter seal is an energy saving insulating seal for whole house attic fans.
If you pressurize the house with a window fan you may be able to feel the leaks with your hand as the air finds its way into the attic.
Without air sealing your attic you are allowing warm air to escape from your home carrying with it your hard earned winter heating money.
It helps to cool your home temperatures and the attic by approximately 30 degrees.
These furry creatures also tear up insulation chew on wires and support beams and wreak untold damage to your house.
Whole house fans work on the principle of removing the hot and humid air out of the house.
I recently bought a house that has an attic fan on a thermostat that seems to run whenever the outside temperature gets above about 70.
Covering the attic fan vent saves energy and helps to prevent ice dams.
Another way to seal off an attic fan is to use thick plastic and insulation.
Hole in your ceiling and add a 100 watt bulb enough heat to bake cookies and you have a recipe for huge heat loss as well as a major contributor to ice dams.
