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The DOE Efficient Window Coverings website identifies twelve categories of interior window shading attachments.

The DOE Efficient Window Coverings website identifies twelve categories of interior window shading attachments.
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The double-wall construction results in thick window sills which builder market as an architectural feature.

The double-wall construction results in thick window sills which builder market as an architectural feature.
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The edge of this 1-inch HVAC filter indicates it's dimensions, allowing proper matching of filter to air handler

The edge of this 1-inch HVAC filter indicates it's dimensions, allowing proper matching of filter to air handler
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The Efficient Window Coverings website allows direct comparison of various window attachment types based on thermal, visual, functional, and installation and durability criteria.

The Efficient Window Coverings website allows direct comparison of various window attachment types based on thermal, visual, functional, and installation and durability criteria.
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The fluid-applied asphalt coating provides a weather-resistant, moisture resistant layer around the house, serving as a continuous drainage plane and flashing for window and door openings.

The fluid-applied asphalt coating provides a weather-resistant, moisture resistant layer around the house, serving as a continuous drainage plane and flashing for window and door openings.
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The furnace filter slot cover should fit tightly to minimize air leakage but it should not be taped or caulked to enable frequent filter replacements.

The furnace filter slot cover should fit tightly to minimize air leakage but it should not be taped or caulked to enable frequent filter replacements.
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The green-lit panel next to the fan and light switches is an indoor air quality sensor that will automatically turn on the exhaust fan if it detects a rise in humidity or indoor air pollutants.

The green-lit panel next to the fan and light switches is an indoor air quality sensor that will automatically turn on the exhaust fan if it detects a rise in humidity or indoor air pollutants.
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The light fixture is connected to the exhaust fan with an electric wire which is sometimes hard wired but in this case is plugged in so it can be unplugged to clean the light fixture and access the fan for cleaning

The light fixture is connected to the exhaust fan with an electric wire which is sometimes hard wired but in this case is plugged in so it can be unplugged to clean the light fixture and access the fan for cleaning
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The light-colored exterior roll-down shades on this building, and the shaded entryway provide very effective control of solar heat gain

The light-colored exterior roll-down shades on this building, and the shaded entryway provide very effective control of solar heat gain
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The MERV rating, particle capture efficiencies, and pressure drops are printed on the side of this 1-inch pleated filter

The MERV rating, particle capture efficiencies, and pressure drops are printed on the side of this 1-inch pleated filter
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The metal head flashing over the window trim angles out slightly to provide a drip edge so rain water will drop away from the window instead of rolling down onto the window trim.

The metal head flashing over the window trim angles out slightly to provide a drip edge so rain water will drop away from the window instead of rolling down onto the window trim.
Presentation:

The New Normal - Delivering Healthy Air in Every Home We Build

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The NFRC/ENERGY STAR label provides consumers with several performance ratings for a window

The NFRC/ENERGY STAR label provides consumers with several performance ratings for a window
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The nut holding the light housing in place in this combination exhaust fan/light can be unscrewed by hand

The nut holding the light housing in place in this combination exhaust fan/light can be unscrewed by hand
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The operable windows in this house are located at occupant level to provide comfort ventilation.

The operable windows in this house are located at occupant level to provide comfort ventilation.
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The optimal indoor relative humidity for comfort and health is 30% to 50%

The optimal indoor relative humidity for comfort and health is 30% to 50%
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The overhang on the left is much wider than the window, allowing it to provide better shade throughout the day than the overhang on the right, which is only the width of the window (results shown for south-facing window, late summer, 2pm, 36N latitude).

The overhang on the left is much wider than the window, allowing it to provide better shade throughout the day than the overhang on the right, which is only the width of the window (results shown for south-facing window, late summer, 2pm, 36N latitude).
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The overhang on the left is much wider than the window, allowing it to provide far better shade throughout the day than the overhang on the right, which is only the width of the window (results shown for south-facing window, late summer, 36N latitude).

The overhang on the left is much wider than the window, allowing it to provide far better shade throughout the day than the overhang on the right, which is only the width of the window (results shown for south-facing window, late summer, 36N latitude).
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The patio roof on this home provides full shade to large glass doors and windows, reducing the home's heat gains.

The patio roof on this home provides full shade to large glass doors and windows, reducing the home's heat gains.
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The pulleys in this old window frame were once used for counterbalancing weights to help raise and lower the window; this window can be restored with new pulley ropes or the weight pockets can be insulated with caulk and rigid insulation.

The pulleys in this old window frame were once used for counterbalancing weights to help raise and lower the window; this window can be restored with new pulley ropes or the weight pockets can be insulated with caulk and rigid insulation.
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The rough opening around this window is air sealed and insulated with nonexpanding spray foam.

The rough opening around this window is air sealed and insulated with nonexpanding spray foam.
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The rough openings for the windows are flashed with a paint-on flashing product then the windows are installed and additional flashing tape is installed over the flashing. Nail holes are sealed with caulk.

The rough openings for the windows are flashed with a paint-on flashing product then the windows are installed and additional flashing tape is installed over the flashing. Nail holes are sealed with caulk.
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The Solar Radiation Data Manual for Buildings provides window overhang sizing guidance for 239 locations across the U.S.; this example is for Boulder, CO

The Solar Radiation Data Manual for Buildings provides window overhang sizing guidance for 239 locations across the U.S.; this example is for Boulder, CO
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The south face of this home has an overhanging second floor, a pergola, and a roof eave to provide effective window and door shading for both floors in the summer without blocking view, diffuse daylighting, breezes, or ingress/egress

The south face of this home has an overhanging second floor, a pergola, and a roof eave to provide effective window and door shading for both floors in the summer without blocking view, diffuse daylighting, breezes, or ingress/egress