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Case Study:

DOE ZERH HIA 2017 Case Study: United Way of Long Island, United Veterans Beacon House, Huntington Station, NY

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DOE Zero Energy Ready Home PV-Ready Checklist - Minimum Roof Area (Revision 07)

DOE Zero Energy Ready Home PV-Ready Checklist - Minimum Roof Area (Revision 07)
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Don’t install drip edge flashing with the lower leg touching the fascia; this can encourage wicking of water behind the flashing. Instead set the lower leg of the drip edge away from the fascia.

Don’t install drip edge flashing with the lower leg touching the fascia; this can encourage wicking of water behind the flashing. Instead set the lower leg of the drip edge away from the fascia.
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Downspout termination

Downspout termination
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Draft stopping and air barrier at fireplace enclosure, plan view

Draft stopping and air barrier at fireplace enclosure, plan view
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Draft stopping and air barrier at fireplace enclosure, side view

Draft stopping and air barrier at fireplace enclosure, side view
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Drifting of snow led to heavy accumulation between the gables which required snow removal to reduce risk of roof collapse

Drifting of snow led to heavy accumulation between the gables which required snow removal to reduce risk of roof collapse
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Ductwork located in a vented attic is subject to high attic temperatures and significant heat gain through the walls of the ducts

Ductwork located in a vented attic is subject to high attic temperatures and significant heat gain through the walls of the ducts
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During high wind events, high localized areas of negative pressure (“suction”) occur above roof membranes

During high wind events, high localized areas of negative pressure (“suction”) occur above roof membranes
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During high wind events, sloped roofs and flat roofs experience higher uplift forces than flat roofs with parapets

During high wind events, sloped roofs and flat roofs experience higher uplift forces than flat roofs with parapets
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During high wind events, vortices form along the edges of the roof creating areas of localized negative pressure (“suction”) above the roof

During high wind events, vortices form along the edges of the roof creating areas of localized negative pressure (“suction”) above the roof
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End wall failure under hurricane force winds due to inadequate bracing of the gable end wall.

End wall failure under hurricane force winds due to inadequate bracing of the gable end wall.
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Energy 101: Cool Roofs

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ENERGY STAR reflective shingles cover the roof, which is ideally angled for solar panels.

ENERGY STAR reflective shingles cover the roof, which is ideally angled for solar panels.
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Example A of a gable truss and gable end wall bracing for a home in a hurricane region

Example A of a gable truss and gable end wall bracing for a home in a hurricane region
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Example B of a gable truss and gable end wall bracing for a home in a hurricane region

Example B of a gable truss and gable end wall bracing for a home in a hurricane region
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Example of a cool roof, painted white to reflect solar heat gain.

Example of a cool roof, painted white to reflect solar heat gain.
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Example of a properly braced gable end wall

Example of a properly braced gable end wall
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Example of a truss bracing requirement tag that some truss manufactures place strategically onto the truss to remind installers

Example of a truss bracing requirement tag that some truss manufactures place strategically onto the truss to remind installers
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Example of ladder framing of gable roof overhang

Example of ladder framing of gable roof overhang
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Example truss bracing for resisting wind loads as determined by design software used by truss manufactures

Example truss bracing for resisting wind loads as determined by design software used by truss manufactures
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Examples of many common ceiling penetrations that will be difficult to insulate and air seal in this cathedral ceiling.

Examples of many common ceiling penetrations that will be difficult to insulate and air seal in this cathedral ceiling.
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Examples of Related Projects that Can be Done while Conducting a Roof Replacement or Bathroom Remodel

Examples of Related Projects that Can be Done while Conducting a Roof Replacement or Bathroom Remodel
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Exhaust fan ducts should be made of rigid metal ducting not flexible corrugated ducts like these and the ducts should be attached to the roof or soffit to vent completely to the outside not left open in the attic near an attic vent

Exhaust fan ducts should be made of rigid metal ducting not flexible corrugated ducts like these and the ducts should be attached to the roof or soffit to vent completely to the outside not left open in the attic near an attic vent