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Wrong – Conventional wood deck risks ignition from embers falling on the surface or from unmaintained vegetation burning below.

Wrong – Conventional wood deck risks ignition from embers falling on the surface or from unmaintained vegetation burning below.
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Wrong – Don’t use nails to fasten poly vapor barrier around flex ducts; it will allow moist air to reach the ducts where it could condense and ruin the insulation.

Wrong – Don’t use nails to fasten poly vapor barrier around flex ducts; it will allow moist air to reach the ducts where it could condense and ruin the insulation.
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Wrong – The gable end wall failed because the rigid foam sheathing was not backed up by plywood or OSB.

Wrong – The gable end wall failed because the rigid foam sheathing was not backed up by plywood or OSB.
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Wrong – The stud was cut too long then not installed plumb and level.

Wrong – The stud was cut too long then not installed plumb and level.
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Wrong – This second-story floor plan has red lines that indicate openings from the attic into the interstitial floor space

Wrong – This second-story floor plan has red lines that indicate openings from the attic into the interstitial floor space
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Wrong – Where possible, design walls and specify window sizes and placement to minimize the use of studs around windows; and seal all wood-to-wood seams to minimize air leakage through walls.

Wrong – Where possible, design walls and specify window sizes and placement to minimize the use of studs around windows; and seal all wood-to-wood seams to minimize air leakage through walls.
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Wrong: Drywall does not extend beyond the top plate of the interior walls. This installation has the potential for leakage at the sides where the ducts penetrate the side walls of the chase

Wrong: Drywall does not extend beyond the top plate of the interior walls. This installation has the potential for leakage at the sides where the ducts penetrate the side walls of the chase
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Wrong: HPWH inlet and outlet are piped to mixing valve inlet and DCW make up, driving erratic HPWH and mixing valve behavior

Wrong: HPWH inlet and outlet are piped to mixing valve inlet and DCW make up, driving erratic HPWH and mixing valve behavior
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Wrong: The exhaust air from one heat pump water heater is blowing into the intake of the heat pump water heater next to it

Wrong: The exhaust air from one heat pump water heater is blowing into the intake of the heat pump water heater next to it
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Wrong: The fiber-cement siding has cracked due to over-driven nails located too close to the edge of the board; these cracks provide a pathway for bulk water entry and offer little resistance to high winds.

Wrong: The fiber-cement siding has cracked due to over-driven nails located too close to the edge of the board; these cracks provide a pathway for bulk water entry and offer little resistance to high winds.
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Wrong: The waterproofing around this hose bib was haphazardly detailed allowing water a pathway to wick behind the siding.

Wrong: The waterproofing around this hose bib was haphazardly detailed allowing water a pathway to wick behind the siding.
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Wrong: This air handling equipment is installed in the garage without isolating the equipment from the garage space

Wrong: This air handling equipment is installed in the garage without isolating the equipment from the garage space
Video:

Your Northern Home: Crawl Spaces in Southeast Alaska