Sherman Oaks Decks & Patios, Water Planned
Sherman Oaks decks and patios planned around water: threshold drains, gapped boards, drained deck undersides and patio slopes, permitted through LADBS.
A slot drain along the door threshold is where water planning starts on a Sherman Oaks patio. Rain blown against the glass runs down to the sill, and a patio that meets the door flush has nowhere to send it. The drain catches it and pipes it to an approved outlet. On a raised deck the same thinking moves below the boards. If the lot slopes, water leaving the deck is carried down and away from the footings.
Where the patio meets the house
The patio surface stays below the interior floor, with a slot or trench drain where the two come close. Away from the door, the surface falls toward area drains or a planted edge. Pipe from those drains is sized and routed to the street or another approved discharge point, and a cleanout is left where a hose can reach it. Along the foundation, the patio edge is sealed or flashed so water cannot run down the house wall to the footing. Every drain line is drawn on the permit set.
Under a raised deck
Gaps between boards let rain fall through, so the question becomes where it lands. Under a deck at grade, the soil is shaped to a swale or covered with gravel over fabric, pitched toward a drain. Under an upper deck with a room or patio beneath, a drained ceiling system catches the water between joists and carries it to a gutter. Posts sit on standoff bases so end grain stays dry. LADBS reviews the drainage with the structure, and the inspector sees the lines before they are covered.
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On a slope, the engineer sets each depth so the footing bears below loose soil, with the downhill ones deepest. Saturated soil loses strength, so runoff is routed away from every footing. A flat yard can use shallower spread footings. LADBS inspects each hole before the pour.
Fire mapping for the specific lot is the first thing we confirm. A mapped lot means ember-resistant decking and a protected underside, which also affects how the space below is drained and vented. An unmapped lot uses the base code. LADBS confirms the result in plan check.
Area sets the boards, joists and guards. Height sets posts, bracing and footing depth. Drainage is priced as its own line, and a drained ceiling under an upper deck adds to it. The quote shows each group so you can weigh a raised deck against a patio at grade.
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