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Wrong - Insulation was not sliced to wrap around wiring.

Wrong - Insulation was not sliced to wrap around wiring.
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Wrong - Lack of insulation in the wall above this window combined with poor bathroom ventilation has contributed to mold growth.

Wrong - Lack of insulation in the wall above this window combined with poor bathroom ventilation has contributed to mold growth.
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Wrong - Moisture from within the basement foundation wall can migrate into the insulation cavity in a conventional blanket insulation installation.

Wrong - Moisture from within the basement foundation wall can migrate into the insulation cavity in a conventional blanket insulation installation.
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Wrong - No insulation was installed behind the shower surround.

Wrong - No insulation was installed behind the shower surround.
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Wrong - Plastic-covered blanket insulation that is installed directly against concrete walls with no rigid foam or closed-cell spray foam covering the concrete could trap moisture coming through the concrete, leading to mold, moisture, and odor problems.

Wrong - Plastic-covered blanket insulation that is installed directly against concrete walls with no rigid foam or closed-cell spray foam covering the concrete could trap moisture coming through the concrete, leading to mold, moisture, and odor problems.
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Wrong - Polyethylene sheeting should be lapped up sides of walls and pillars and taped

Wrong - Polyethylene sheeting should be lapped up sides of walls and pillars and taped
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Wrong - Poor ventilation has encouraged the build up of mold in this shower.

Wrong - Poor ventilation has encouraged the build up of mold in this shower.
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Wrong - Rim joist cavity missing insulation

Wrong - Rim joist cavity missing insulation
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Wrong - The basement blanket insulation is loosely attached to the interior of the basement wall, does not cover the entire wall, is not sealed at the edges, and is not installed over rigid foam that covers the entire surface of the foundation walls.

Wrong - The basement blanket insulation is loosely attached to the interior of the basement wall, does not cover the entire wall, is not sealed at the edges, and is not installed over rigid foam that covers the entire surface of the foundation walls.
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Wrong - The fiberglass blanket insulation has no perforated vapor retarder, does not cover the entire basement wall, is not sealed at the edges, and is not installed over rigid foam.

Wrong - The fiberglass blanket insulation has no perforated vapor retarder, does not cover the entire basement wall, is not sealed at the edges, and is not installed over rigid foam.
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Wrong - The roof insulation panels for this building were not installed in multiple layers with joints offset. The snow melt pattern shows thermal bypasses at the insulation panel joints.

Wrong - The roof insulation panels for this building were not installed in multiple layers with joints offset. The snow melt pattern shows thermal bypasses at the insulation panel joints.
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Wrong - This attic access hatch cover is not insulated

Wrong - This attic access hatch cover is not insulated
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Wrong - This plastic-covered blanket insulation is not perforated, does not cover the entire basement wall, is not sealed at the edges, and is not installed over rigid foam.

Wrong - This plastic-covered blanket insulation is not perforated, does not cover the entire basement wall, is not sealed at the edges, and is not installed over rigid foam.
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Wrong - Unfaced fiberglass batt is not properly cut to fit in all the stud bays.

Wrong - Unfaced fiberglass batt is not properly cut to fit in all the stud bays.
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Wrong - Wall cavities behind shower are not completely filled with insulation and are lacking the solid interior air barrier.

Wrong - Wall cavities behind shower are not completely filled with insulation and are lacking the solid interior air barrier.
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Wrong - Wood-to-wood and wood-to-subfloor seams not caulked or poorly caulked.

Wrong - Wood-to-wood and wood-to-subfloor seams not caulked or poorly caulked.
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Wrong – A clothes dryer that vents to the crawlspace can contribute moisture to the crawlspace; this can result in damp, molding, and rotting insulation

Wrong – A clothes dryer that vents to the crawlspace can contribute moisture to the crawlspace; this can result in damp, molding, and rotting insulation
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Wrong – A visible gap in the insulated sheathing introduces unwanted outside air, creating a thermal bypass and encouraging convective air flow

Wrong – A visible gap in the insulated sheathing introduces unwanted outside air, creating a thermal bypass and encouraging convective air flow
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Wrong – Attic access panel does not have an insulation cover installed

Wrong – Attic access panel does not have an insulation cover installed
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Wrong – Compression and misalignment because insulation is not split around plumbing

Wrong – Compression and misalignment because insulation is not split around plumbing
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Wrong – Compression and misalignment because insulation is not split around wires

Wrong – Compression and misalignment because insulation is not split around wires
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Wrong – Conventional T-post detail is extremely difficult to insulate and usually doesn't happen

Wrong – Conventional T-post detail is extremely difficult to insulate and usually doesn't happen
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Wrong – Design walls so that windows are positioned to fit regularly spaced studs so less additional studs are needed.

Wrong – Design walls so that windows are positioned to fit regularly spaced studs so less additional studs are needed.
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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.