Rebuilding in Granada Hills, Los Angeles County

Fire rebuild in Granada Hills

Granada Hills fire rebuild that settles the soils question early, so the engineer designs footings from tested ground and LADBS reviews a complete set.

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Do we need a soils report before anyone draws the new house? On a Granada Hills lot that question deserves an answer at the start of planning, because the engineer sizes footings from what the ground can carry. We find out whether the lot calls for a geotechnical study, arrange the borings when it does, and hold the structural design until the findings are back in hand.

When the ground gets tested

A soils engineer drills or digs test holes, logs each layer and sends samples to a lab. The report gives bearing values, notes any expansive clay and says how deep footings must reach. LADBS can ask for that report at plan check, and the City of Los Angeles may want one on any lot with fill or a grade change. If the old house sat on uncompacted fill, the report usually prescribes removal and recompaction. Getting it early keeps the foundation drawings from being redone after review comments arrive.

Ember details for a mapped area

Parts of Granada Hills fall inside mapped fire hazard zones, so a new house there may be held to ember resistance rules. Those rules shape the outside of the building. Attic and crawl space vents carry fine metal mesh or a listed ember baffle. Eaves are boxed in, with soffits rated for exterior fire exposure. Siding, decking within reach of the walls and the roof covering are drawn from tested materials. We put each of these on the plan set by product name, which lets the inspector match what was approved to what was installed.

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