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Stesso

Securing Plates and Double Top Plate Installation

11:20
14:50
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At 11:20 in

Learn House Framing and Why it Fails

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What happens here

When a wall is positioned parallel to the floor joists, the bottom plate must be securely nailed into both the rim joist and the adjacent floor joist. This technique ensures a strong connection to the subfloor. On the other sides of the structure, where wall plates run perpendicular to the floor joists, the nails are driven directly into each joist. Once the bottom plate is secure, install the second layer of the top plate, known as the double top plate. While its seams do not strictly have to land on a stud for code compliance (as the first top plate provides continuity), it is a best practice for enhanced strength if they do. Although installing top plates on the ground is generally easier, doing it after the wall is stood up allows for crucial adjustments to achieve a perfectly plumb and square wall.

Goal: Secure wall plates to the subfloor/rim joist and install the second top plate

Tools and materials

  • Bottom Plate — The base of the wall frame requiring secure attachment
  • Double Top Plate — The second layer of the top plate, adding strength and load distribution
  • Hammer — Bumping plates into final position and driving nails
  • Joists — The horizontal members supporting the floor
  • Pneumatic Nail Gun Paslode — Nailing plates and studs
  • Rim Joist — The structural member connecting the ends of the floor joists

What they say

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and use this line to determine your seat cut and you can leave this long to cut your rafter tail and install your rafters. When nailing your ridge, if you hold the rafter a little high and top nail, it's much easier to knock this down and then finish your three nails. When installing rafters, if your walls bow out, nothing will hold your ridgeboard. If you install a rafter tie, if the walls can't bow out, this is what keeps your ridge from separating. Bottom cords for rafter ties and trusses are in tension, so they're getting pulled apart. If we remove the rafter tie, or if the rafter tie doesn't have enough fastening, it's typically a lot more than you think. If plates let go, nails let go, or this gets cut, it lets the walls bow out. If we install a ridge beam, this keeps your ridge from pushing down and bowing out your walls. So, if you end up wanting a vaulted ceiling, so in this case you have loads on your exterior wall and your center beam, if your rafters aren't connected well, these can still bow out. So, in this case nailing alone isn't enough to keep this from spreading apart, and just a collar tie isn't enough, either. It's common to strap over the top of the ridge to avoid the separation.

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