Sherman Oaks Kitchen Remodeling That Stays Dry

Sherman Oaks kitchen remodels with a listed dishwasher air gap, a flashed sink window and a dampered hood cap, permitted through LADBS.

Describe the house and the work

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Water gets into a Sherman Oaks kitchen at a handful of points: the sink, the dishwasher, the refrigerator line and the window above the counter. Each one is detailed to stop a slow leak before it rots a cabinet floor. The sink drain is trapped and vented, the dishwasher discharges through an air gap fitting at the counter, the ice maker line gets its own shutoff, and the window is flashed into the wall from the sill upward.

Under the sink and behind the dishwasher

The California Plumbing Code calls for an approved air gap fitting on a dishwasher drain, mounted at the sink or the counter, so dirty water from a clogged drain cannot siphon back into the machine. A hose looped high under the counter does not satisfy that rule in California. We set the listed fitting, run its outlet to the disposal or a wye tailpiece, and check every supply valve under pressure. A drip pan can sit beneath the dishwasher, and a leak sensor can sit in the sink base so a small drip is caught early.

The window wall and the hood duct

Outside, the kitchen wall can take water at the window rough opening and at the hole cut for the range hood duct. We slope a sill pan under the window, lap the building paper over its top flange, and wrap the duct sleeve with flashing tape before the stucco patch goes on. A spring-loaded damper inside the duct cap snaps closed between uses, which blocks wind-driven rain and stray embers alike. Sealant is the last line here, and the laps in the paper do the real work of turning water outward.

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Tell us about the house and the kitchen remodeling work. We reply about a walk-through and a written scope.