Structural Work in Temple City
Old boards on a Temple City cripple wall can pass for bracing. Aspenwell Construction tells the two apart and scopes the plywood the plan needs.
From the crawlspace hatch, boards nailed across the inside of a Temple City cripple wall can pass for bracing. They may be horizontal planks that add little resistance to racking, the sideways lean a cripple wall takes in an earthquake. Finding them changes the scope. Those boards usually come off, and structural plywood goes on where the drawings call for it, nailed into the sill, studs and top plate.
Telling bracing from boards
Real bracing is structural panel, plywood or a rated equivalent, nailed at close spacing along every edge. Horizontal boards fastened with a nail or two at each stud act like a ladder laid on its side, and they bend easily when pushed. Diagonal boards do better, though they may still fall short of what a plan expects. We look at the nails, the panel stamps and the edges to decide which the house has. A cripple wall sheathed only with boards is generally treated as unbraced for the retrofit.
What the finding changes
Boards that come off expose the studs, and that can be where a second hidden condition shows up: a stud cut short for a pipe, a split top plate or decay at the bottom. Each of those gets repaired before plywood goes on. The written findings for the Temple City house describe what was found and what the repair adds to the scope. The agency that permits the work sends an inspector to look at the new nailing and the replaced wood before anything is closed.
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Usually both, unless the floor framing sits directly on the foundation. Bolts hold the sill down, and plywood bracing keeps cripple walls standing. A wall covered in old boards is generally treated as unbraced, so a Temple City house with boards and bolts may still need the plywood.
If the house qualifies, we prepare the prescriptive bolt and brace plan the code provides. Beams, footing repairs and soft-story frames are larger matters, handled by a licensed engineer. Once plan check approves the set, the permit is issued.
What is nailed to the cripple walls. Boards, plywood or bare studs each lead to a different scope, so we identify them first, checking nail spacing and any panel stamps. Then the sill gets probed and the anchors counted.
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Describe the house and what it needs. We look at the structure first and send the quote in writing.