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Video:

Wind Resistant Roof Types

Image:

With a quality installation, tape can last a long time

With a quality installation, tape can last a long time
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With the nailed block method, wood blocks are attached to the sill plate and the cripple wall plywood is attached to the block to provide shear strength for correctly bracing a cripple wall in a seismic retrofit

With the nailed block method, wood blocks are attached to the sill plate and the cripple wall plywood is attached to the block to provide shear strength for correctly bracing a cripple wall in a seismic retrofit
Video:

Wood Frame and Steel Sheathing Tornado Safe Room

Video:

Wood Tornado Shelters Segment 4

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Wrong - House wrap is not fully attached to sheathing.

Wrong - House wrap is not fully attached to sheathing.
Image:

Wrong - Lack of a weather-resistant barrier allowed water to get behind the siding and rot the framing in this corner rim joist area.

Wrong - Lack of a weather-resistant barrier allowed water to get behind the siding and rot the framing in this corner rim joist area.
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Wrong - Reflective housewrap not installed properly

Wrong - Reflective housewrap not installed properly
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Wrong - Roof deck sheathing nails missed the trusses, potentially weakening the roof in high winds.

Wrong - Roof deck sheathing nails missed the trusses, potentially weakening the roof in high winds.
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Wrong - Sheathing was poorly cut and does not align at corners.

Wrong - Sheathing was poorly cut and does not align at corners.
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Wrong - Siding is missing or broken and wood crawl space wall is unprotected.

Wrong - Siding is missing or broken and wood crawl space wall is unprotected.
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Wrong - This tile roof was damaged by high winds.

Wrong - This tile roof was damaged by high winds.
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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 – Either this tape was not pressed down firmly or the surface was wet or dirty so the tape is not sticking properly even during construction.

Wrong – Either this tape was not pressed down firmly or the surface was wet or dirty so the tape is not sticking properly even during construction.
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Wrong – Holes in the OSB are not patched.

Wrong – Holes in the OSB are not patched.
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Wrong – If the insulated sheathing will serve as an air barrier and drainage plane, any cuts and seams must be taped or sealed.

Wrong – If the insulated sheathing will serve as an air barrier and drainage plane, any cuts and seams must be taped or sealed.
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Wrong – Insulated sheathing seams should align with framing members

Wrong – Insulated sheathing seams should align with framing members
Image:

Wrong – Rigid insulation is being installed without cap nails

Wrong – Rigid insulation is being installed without cap nails
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Wrong – The flashing of the roof-wall juncture was installed above the roof shingles instead of below the roof shingles; also no kickout flashing was installed.

Wrong – The flashing of the roof-wall juncture was installed above the roof shingles instead of below the roof shingles; also no kickout flashing was installed.
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Wrong – When insulated sheathing is installed correctly, you should not see daylight. Nail holes were also left unplugged.

Wrong – When insulated sheathing is installed correctly, you should not see daylight. Nail holes were also left unplugged.
Image:

Wrong – Wiring holes in OSB were cut much larger than needed.

Wrong – Wiring holes in OSB were cut much larger than needed.
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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
Image:

Wrong: Not enough space was left in the floorplans for both the heat pump water heater and a duct elbow to be attached to the right side of the water heater (the orange circle outlines the tank; the rectangle shows the space needed for the duct)

Wrong: Not enough space was left in the floorplans for both the heat pump water heater and a duct elbow to be attached to the right side of the water heater (the orange circle outlines the tank; the rectangle shows the space needed for the duct)
Image:

Wrong: Sized per Approach 1 or 2, this heat pump’s modulating zone has a small overlap with the home’s heating load line, resulting in a large amount of short-cycling; the unit will require backup heat when the temperature is below 25°F

Wrong: Sized per Approach 1 or 2, this heat pump’s modulating zone has a small overlap with the home’s heating load line, resulting in a large amount of short-cycling; the unit will require backup heat when the temperature is below 25°F