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The drywall above the dropped ceiling duct chase extends beyond adjoining top plates for a continuous air barrier

The drywall above the dropped ceiling duct chase extends beyond adjoining top plates for a continuous air barrier
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The front porch on this home survived a hurricane

The front porch on this home survived a hurricane
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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 Importance of Roof Truss Bracing

The Importance of Roof Truss Bracing
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The incremental cost of EV charging infrastructure.

The incremental cost of EV charging infrastructure.
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The Integrated Design Process loops in design input at every stage of development

The Integrated Design Process loops in design input at every stage of development
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The original corner seam is air-sealed with caulk, then rigid foam is installed on the existing garage ceiling and walls, and finally covered with drywall.

The original corner seam is air-sealed with caulk, then rigid foam is installed on the existing garage ceiling and walls, and finally covered with drywall.
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The PNNL Quality Install Tool simplifies and standardizes the documentation of HVAC installations and efficiency upgrades through photo-based prompts

The PNNL Quality Install Tool simplifies and standardizes the documentation of HVAC installations and efficiency upgrades through photo-based prompts
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The preferred method for elevating electrical components

The preferred method for elevating electrical components
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The volume of a home with a pitched roof an attic space can be calculated using height, width, length, and attic height dimensions.

The volume of a home with a pitched roof an attic space can be calculated using height, width, length, and attic height dimensions.
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There should be less than 2.5 inches per each five foot of duct length

There should be less than 2.5 inches per each five foot of duct length
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Thermal and air barriers at rim joist or new blocking prevent Infiltration of unconditioned air into the floor cavity

Thermal and air barriers at rim joist or new blocking prevent Infiltration of unconditioned air into the floor cavity
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This builder in central Washington state chose durable low-maintenance exterior finishes like metal roofing, and hydrolyzed lime and metal siding.

This builder in central Washington state chose durable low-maintenance exterior finishes like metal roofing, and hydrolyzed lime and metal siding.
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This central heat pump water heating system with a hot water circulation loop that returns to the primary storage tank relies on a multi pass heat pump to provide both primary DHW heating and hot water circulation temperature maintenance

This central heat pump water heating system with a hot water circulation loop that returns to the primary storage tank relies on a multi pass heat pump to provide both primary DHW heating and hot water circulation temperature maintenance
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This central heat pump water heating system with a hot water circulation loop that returns to the primary storage tank relies on a single pass heat pump to provide both primary DHW heating and hot water circulation temperature maintenance

This central heat pump water heating system with a hot water circulation loop that returns to the primary storage tank relies on a single pass heat pump to provide both primary DHW heating and hot water circulation temperature maintenance
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This EV charger is located near the home’s electrical panel and a time-of-use (TOU) meter.

This EV charger is located near the home’s electrical panel and a time-of-use (TOU) meter.
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This EV charger was properly installed with clear floor and wall access for charging.

This EV charger was properly installed with clear floor and wall access for charging.
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This fastener schedule for metal panel siding shows denser spacing for the end panels to resist stronger wind pressures. Some manufacturers specify that panels be installed with the prevailing wind - in this example wind direction is right to left.

This fastener schedule for metal panel siding shows denser spacing for the end panels to resist stronger wind pressures. Some manufacturers specify that panels be installed with the prevailing wind - in this example wind direction is right to left.
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This flood-resistant exterior wall with brick or fiber-cement siding will limit moisture damage in exterior walls.

This flood-resistant exterior wall with brick or fiber-cement siding will limit moisture damage in exterior walls.
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This flood-resistant masonry wall design with metal framing and rigid foam insulation will limit moisture damage in exterior walls.

This flood-resistant masonry wall design with metal framing and rigid foam insulation will limit moisture damage in exterior walls.
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This flowchart describes which ACCA manuals are needed in each phase of the HVAC design process.

This flowchart describes which ACCA manuals are needed in each phase of the HVAC design process.
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This fully packaged/skid-mounted central heat pump water heating system was shipped to the building on a truck and craned into location

This fully packaged/skid-mounted central heat pump water heating system was shipped to the building on a truck and craned into location
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This fully specified central heat pump water heating system has four individual outdoor heat pump units plumbed in parallel to indoor storage tanks

This fully specified central heat pump water heating system has four individual outdoor heat pump units plumbed in parallel to indoor storage tanks
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This house wrap assembly can work in all climates except extreme cold.

This house wrap assembly can work in all climates except extreme cold.