Redondo Beach, Los Angeles County

Seismic retrofit planning in Redondo Beach

Does a Redondo Beach retrofit need an engineer? Aspenwell Construction measures the crawlspace to decide between a prescriptive plan and stamped bracing.

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Does a Redondo Beach retrofit need an engineer, or can it follow a prescriptive plan? The answer comes from the crawlspace. A modest wood house on a raised perimeter foundation, with cripple walls no taller than that plan allows, may qualify for anchors and panels drawn from a set the building department already accepts. A taller cripple wall, a split level, living space over a garage or an older addition on its own footing pushes the job toward stamped calculations.

Signs that point to calculations

We measure each cripple wall from the top of the concrete to the underside of the floor framing and note where the height changes along the perimeter. Stepped footings, a porch tied into the frame, or a basement room each fall outside what a prescriptive plan was written for. So does a room built over open parking, where the ground story has wide openings and little solid wall. When any of these turn up, an engineer draws the bracing and anchor layout, and that design fee shows up by itself on the written quote.

Corrosion, connectors and city review

Redondo Beach faces the Pacific, so the anchor plates, hold-downs and framing clips we specify carry a heavier zinc coat or come in stainless steel. Thin coatings on connectors close to the water can rust through well before the framing around them wears out. The City of Redondo Beach reviews the drawings, prescriptive or engineered, and its inspectors see the anchors and the panel nailing before the crawlspace is closed back up. If an exterior change is part of the job, we ask the city early whether the parcel needs state review for development near the water.

What we build in Redondo Beach

Structural work comes first on this list, and every service starts with a look at the framing and foundation.

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Plan structural work in Redondo Beach

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