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Types of window attachments include exterior attachments such as storm windows, fixed awnings, dynamic awnings, roller shutters, roller shades, and solar screens, and interior attachments such as drapes, louvered blinds, roller shades, surface applied fil

Types of window attachments include exterior attachments such as storm windows, fixed awnings, dynamic awnings, roller shutters, roller shades, and solar screens, and interior attachments such as drapes, louvered blinds, roller shades, surface applied films, cellular shades, and window quilts.
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Utility room floor plan showing solar hot water tank

Utility room floor plan showing solar hot water tank
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Vertical side-shading, such as these side fins, can provide effective summertime shading for north-facing windows, but are generally not recommended for other orientations due to their marginal performance and restricted views

Vertical side-shading, such as these side fins, can provide effective summertime shading for north-facing windows, but are generally not recommended for other orientations due to their marginal performance and restricted views as compared to horizontal shading devices.
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View-preserving interior solar screens such as these help reduce glare and solar heat gain while maintaining view to the outside

View-preserving interior solar screens such as these help reduce glare and solar heat gain while maintaining view to the outside
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Wall space is provided next to the electrical panel in the garage for the home’s photovoltaics system.

Wall space is provided next to the electrical panel in the garage for the home’s photovoltaics system.
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Wall surfaces having high solar reflectance and high thermal emittance will remain cooler when exposed to direct sunlight.

Wall surfaces having high solar reflectance and high thermal emittance will remain cooler when exposed to direct sunlight.
Video:

Wallingford Passive House | Blower Door Test

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Water management detail for a solar panel rack mounting block installed in rigid foam that was installed over an existing roof

Water management detail for a solar panel rack mounting block installed in rigid foam that was installed over an existing roof
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Where the optimal tilt angle for PV panels is 30°, if the roof is facing due south, the tilt angle (roof pitch) can vary 0° to 60° or roof direction can vary up to 65° to east or west and the roof can still collect 90% to 100% of available solar energy.

Where the optimal tilt angle for PV panels is 30°, if the roof is facing due south, the tilt angle (roof pitch) can vary 0° to 60° or roof direction can vary up to 65° to east or west and the roof can still collect 90% to 100% of available solar energy.
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With very few roof penetrations and a simple design, the south-facing roof provides ample space for solar panels for this net zero home.

With very few roof penetrations and a simple design, the south-facing roof provides ample space for solar panels for this net zero home.
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Wood blocking for future PV panel installation is installed in the layers of polyisocyanurate rigid foam insulation during a flat roof retrofit

Wood blocking for future PV panel installation is installed in the layers of polyisocyanurate rigid foam insulation during a flat roof retrofit
Case Study:

WPPI GreenMax-Chambers Residence: Near Zero Energy Monitoring Summary

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Wrong - This IR image of a second-floor landing shows that attic air is flowing far into the interstitial floor cavity of the second-floor landing

Wrong - This IR image of a second-floor landing shows that attic air is flowing far into the interstitial floor cavity of the second-floor landing
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Wrong - This IR image shows where hot attic air has penetrated into the floor cavity that lies behind the stairwell wall

Wrong - This IR image shows where hot attic air has penetrated into the floor cavity that lies behind the stairwell wall
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Wrong – The blower door is installed improperly with a gap at the corner and along the side of the frame that will allow air leakage and could allow the frame apparatus to become dislodged during testing

Wrong – The blower door is installed improperly with a gap at the corner and along the side of the frame that will allow air leakage and could allow the frame apparatus to become dislodged during testing
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Wrong – The blower door pressure reference hose (blue) ends too close to the outdoors side of the fan. Air moving across the end of the hose will affect the pressure reading

Wrong – The blower door pressure reference hose (blue) ends too close to the outdoors side of the fan. Air moving across the end of the hose will affect the pressure reading
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Wrong – The gas water heater is left on during enclosure leakage testing, which could result in dangerous backdrafting of the water heater when the home is depressurized

Wrong – The gas water heater is left on during enclosure leakage testing, which could result in dangerous backdrafting of the water heater when the home is depressurized
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Wrong – this framing material has a moisture content above 18% as shown by the moisture meter

Wrong – this framing material has a moisture content above 18% as shown by the moisture meter