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A variety of battery-powered fans can be used for a cool room without electric power; most charge off a USB charger so they can be solar charged

A variety of battery-powered fans can be used for a cool room without electric power; most charge off a USB charger so they can be solar charged
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A weatherstripping gasket is installed on the framing that the crawlspace hatch panel rests on.

A weatherstripping gasket is installed on the framing that the crawlspace hatch panel rests on.
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Adding air-sealing and rigid foam insulation at the wall-to-overhanging floor juncture at the outside corner of an existing home

Adding air-sealing and rigid foam insulation at the wall-to-overhanging floor juncture at the outside corner of an existing home
Video:

Adding weatherstripping to a door

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Adhesive caulk is used to seal seams and attach the multiple layers of rigid insulation

Adhesive caulk is used to seal seams and attach the multiple layers of rigid insulation
Video:

Advanced Framing vs Traditional Framing

Presentation:

Advances in Manufactured Home Energy Efficient Design

Advances in Manufactured Home Energy Efficient Design
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After air-sealing the exhaust fan box, re-install the fan, and lights if needed, and re-attach the cover

After air-sealing the exhaust fan box, re-install the fan, and lights if needed, and re-attach the cover
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After cleaning the exhaust fan, the gap around the fan between the fan housing and the drywall should be caulked to stop air leakage from the house to the attic

After cleaning the exhaust fan, the gap around the fan between the fan housing and the drywall should be caulked to stop air leakage from the house to the attic
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After spray foam dries, a utility knife can be used to carefully trim excess foam around the exhaust fan housing

After spray foam dries, a utility knife can be used to carefully trim excess foam around the exhaust fan housing
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After spraying on foaming glass cleaner, smooth the caulk with a gloved finger to get a neat, even finish.

After spraying on foaming glass cleaner, smooth the caulk with a gloved finger to get a neat, even finish
CAD File:

Air barrier at garage band joist - 1 1/2 inch rigid insulation with 2x4 sleepers

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Air barrier at garage band joist - 1 1/2 inch rigid insulation with 2x4 sleepers
CAD File:

Air barrier at garage band joist - 1 inch rigid insulation with 1x3 wood furring

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Air barrier at garage band joist - 1 inch rigid insulation with 1x3 wood furring
CAD File:

Air barrier at garage band joist - 1 inch rigid insulation with 2x2 wood furring

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Air barrier at garage band joist - 1 inch rigid insulation with 2x2 wood furring
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Air leaking through the home's envelope wastes a lot of energy and increases energy costs.

Air leaking through the home's envelope wastes a lot of energy and increases energy costs.
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Air seal a heat pump or air conditioner air handler cabinet at all seams, holes, and junctions

Air seal a heat pump or air conditioner air handler cabinet at all seams, holes, and junctions
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Air seal all holes and seams in the furnace cabinet with mastic, foil tape, or putty

Air seal all holes and seams in the furnace cabinet with mastic, foil tape, or putty
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Air seal and insulate drawer and closet boxes in attic kneewalls

Air seal and insulate drawer and closet boxes in attic kneewalls
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Air seal and insulate light tube

Air seal and insulate light tube
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Air seal around all duct shafts and flues installed through ceilings, walls, or flooring to keep conditioned air from leaking into unconditioned space.

Air seal around all duct shafts and flues installed through ceilings, walls, or flooring to keep conditioned air from leaking into unconditioned space.
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Air seal around kitchen and bathroom exhaust fans to keep conditioned air from leaking into unconditioned space.

Air seal around kitchen and bathroom exhaust fans to keep conditioned air from leaking into unconditioned space.
CAD File:

Air seal at built-out soffit

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Air seal at built-out soffit
CAD File:

Air seal at cabinet soffit - single-story

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Air seal at cabinet soffit - single-story
CAD File:

Air seal at cabinet soffit - two-story

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Air seal at cabinet soffit - two-story