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When installing fasteners in roof sheathing, common mistakes include using the wrong size fasteners, missing the framing members, overdriving nails, and using too many or too few fasteners.

When installing fasteners in roof sheathing, common mistakes include using the wrong size fasteners, missing the framing members, overdriving nails, and using too many or too few fasteners.
Video:

Why A Sealed FORTIFIED Roof

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Wind path and uplift force for a gabled roof, a hip roof, and a pyramidal (another variant of a hip) roof design

Wind path and uplift force for a gabled roof, a hip roof, and a pyramidal (another variant of a hip) roof design
Video:

Wind Resistant Roof Types

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Wind-Damage Reduction as a Function of Retrofit Level

Wind-Damage Reduction as a Function of Retrofit Level
CAD File:

Window head at window frame wall

Preview Image
Window head at window frame wall
CAD File:

Window head at wood frame wall

Preview Image
Window head at wood frame wall
CAD File:

Window sill at wood frame wall

Preview Image
Window sill at wood frame wall
CAD File:

Window sill at wood frame wall

Preview Image
Window sill at wood frame wall
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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

Case Study:

WPPI GreenMax-Chambers Residence: Near Zero Energy Monitoring Summary

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Wrong - House wrap is not fully attached to sheathing.

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