Insulating Attic Fan Winter

1 measure the widest part of the whole house fan working inside the room where the fan is located and not.

Insulating attic fan winter.

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The hinge allows to lid to be blown open by the fan when operating which means you won t have to crawl in the attic over the blown in insulation to open close the lid seasonally. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. The usual areas where air leaks are possible include attic access panels pull down stairs exhaust fan housing recessed lighting plumbing stacks chimneys and around interior partitions. Unless your roofing system has insulation on the roofing deck and is designed without ventilation your furnace should not be heating your attic.

Seal nail penetrations and around electrical hvac and chimney penetrations. 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. Insulation can help reduce this heat exchange keeping your energy bills lower in winter. This allows plenty of blown in insulation cellulose fiberglass rockwool etc to be installed in the attic without falling into the whole house fan.

During cold winter months the attic vent fan is not necessary. Battic whole house attic fan shutter seal 30 install a piece of rigid foam board insulation on the underside of the opening attaching with strong magnetic or velcro strips. Small attic vents located below the roof peaks provide sufficient ventilation to let the moisture created by heat rising into the. Do not cover your attic vents for the winter.

Poor insulation is usually the culprit although if you enter the attic on sunny winter day your attic space can be warmed by the sun more than your furnace. In addition to the attic ventilation solutions above there are more steps you can take to prevent moisture issues in your attic and help maintain proper attic ventilation throughout the winter. Install a box made of foam board insulation over the top of the attic fan if your attic access door is large enough to get the box up there. If your roof vents have been damaged replace them as well as crushed ridge vents to aid in proper ventilation.

Both can be added to uninsulated attics or layered over existing material. Use rigid boards for insulating access panels and for the attic door add a door sweep and weather strip.