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Shear Walls and Structural Integrity

2:06
2:32
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At 2:06 in

How your house gets built 👍 #build #learn #framing #footings #construction

What happens here

With the roof and walls having sheathing, the structure is very strong from front to back, resisting forces along that axis. However, the gable ends (the triangular portions of the walls under the roof trusses) are shown without sheathing in the model. This highlights that, without sheathing, the structure is not strong in that perpendicular direction. Even though gable walls may not bear as much vertical weight as other walls, they carry their own loads and are crucial for shear loads, which are forces that try to distort the structure horizontally. Interior perpendicular walls can also serve as shear walls when properly sheathed and fastened.

Goal: Understand the role of sheathing and shear walls in providing lateral stability to the structure.

Tools and materials

  • Framed House Model N/A — Demonstrating structural strength and weakness
  • Pointer Stick N/A — Highlighting different components of the model
  • Sheathing — Illustrating the effect of sheathing on structural integrity

What they say

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Because this roof and wall has sheathing, this structure is very strong from front to back. Because neither gable end has sheathing, this structure is not strong this way. So, even though your gable walls don't bear as much weight as these walls, they still carry their own loads and are very important when it comes to shear loads. This can also be the case for interior perpendicular walls. Always follow codes and plans and don't be afraid to hire a professional. Thanks for watching.

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