Commercial Construction in Altadena
Altadena commercial construction and retrofits that tie roof framing to walls, built to stamped drawings and permitted through Los Angeles County.
"Is the old wood roof tied to the walls well enough?" Ask it about an Altadena commercial building and a straight answer needs a look above the ceiling. Joists or trusses should be fastened to the top of each wall with metal connectors, and the roof sheathing should be nailed to blocking along every edge. Where either link is missing, sideways force from shaking has no clean route into the walls and down to the footings.
Closing the gaps in the load path
A missing connector is replaced with one the engineer specifies, fastened with the nail or screw count on the drawings. Blocking is fitted between rafters at wall lines so the sheathing edge has something to nail into. Where a wall runs long with few openings, the engineer may add plywood on its inside face to stiffen it, plus hold-downs at its ends that anchor into the footing. Because Altadena is unincorporated, plan check and field inspection for this work are handled by Los Angeles County building officials.
Under the slab, outside the walls
Hold-downs need concrete deep enough to grip them, so we open the slab at each end of a new shear wall and check footing depth before the anchor detail is final. A shallow footing gets a new reinforced section doweled into the old one. Outside, parts of Altadena sit within state mapped fire hazard zones, and a parcel inside one brings the wildfire chapter to any new roof covering, vents or siding added during the work. We confirm that mapping before ordering exterior materials.
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Commercial Construction in Altadena: questions
The owner hires the inspection firm, often through the engineer of record, as the California Building Code requires, and that firm reports to the county building official. We plan the job around its visits, calling the inspector out when anchors, steel or connections are ready and keeping them uncovered until they pass.
Much of the time, since roof connections and wall sheathing can go in one section after another. The occupied area stays separated by dust walls with exits kept open. Slab cutting for new footings is the loudest step, so it is scheduled with you, and a space may need to close briefly when work moves inside it.
In writing, from the engineer's stamped sheets and what we find above the ceiling and under the slab. Demolition, concrete, framing and hardware, roofing and finish repair each carry their own line, with allowances named. Conditions revealed later are written up as changes and approved before that part continues.
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Describe the house and what it needs. We look at the structure first and send the quote in writing.