New Construction in Valley Village, Built to Shed Water

New houses in Valley Village with every exterior layer lapped to shed water, sill pans that drain out and roof water piped clear of the foundation.

Describe the house and the work

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Shingle-style laps are the rule for each exterior layer of a new Valley Village house, upper over lower, so rain that slips behind the plaster runs down and back out. That rule starts with the drip edge and gutters at the roof and ends at a weep screed above the soil. The plaster itself is noncombustible cement, and the paper and flashing beneath it do the work of keeping the framing dry.

Windows that drain at the sill

Before a window is set, its rough opening gets a sill pan sloped toward the outside, with end dams turned up at the corners. The unit goes in with sealant behind the side and head flanges only. The bottom flange is left unsealed, so any water that reaches the pan has a path out. Flashing tape covers the side flanges, a metal head flashing caps the top, and the upper sheet of building paper laps down over that head flashing. Wherever water lands, it meets a lap that sends it outward, toward the face of the wall.

Ground, slab and roof water

The finished grade slopes down and away from the house all the way around, and the weep screed sits at least 4 inches above the soil so the plaster never wicks moisture up from the ground. Under the slab, a vapor retarder laid over a crushed rock base slows moisture rising into the floors. Gutters collect roof water, and the downspouts connect to solid pipe that carries it well clear of the footings. LADBS reviews the grading and drainage shown on the plot plan along with the rest of the permit set, and the inspector checks them in the field.

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