ADU Construction in Mar Vista
ADUs in Mar Vista with eaves and drip edges that keep water off the walls, corrosion-resistant gutters near the coast, and runoff kept off the old house.
Eave depth is the first water decision on a Mar Vista ADU roof. An overhang that reaches well past the wall, finished with a metal drip edge, throws rain clear of the siding and window heads, so less of it ever tests the flashing below. From that edge, gutters gather the water and carry it to downspouts that empty well away from the older house's foundation. Open rafter tails on the house in front can be repeated.
Edges, flashing and metals near the coast
Each roof edge gets a drip flashing, set under the underlayment at the eaves and over it at the rakes, so water never finds the seam. Where a wall rises above the roof, step flashing and a kickout at its base push the flow into the gutter. On a lot this close to the coast, salt carried in the air can pit plain steel, so gutters go in aluminum or copper, hangers and screws in stainless, and the drip edge in a coated metal that holds its color.
Where the runoff goes on the lot
Downspouts on a small unit still move a real volume of water in a hard rain, so each one empties into a solid pipe, a splash block or a gravel basin set back from both buildings. We keep the strip between the ADU and the main house dry, because the older foundation is right there, a few steps from the new work. The original roof and gutters of the main house are left as they stand, and the unit's water never joins them, so neither building sends its rain to the other.
About our ADU Construction serviceEverything we do in Mar Vista
ADU Construction in Mar Vista: common questions
LADWP supplies power and water in Mar Vista, so a new meter or a larger service is planned with that utility. We start from the main panel's rating and the planned ADU appliances, then film the sewer lateral. An older clay line with root intrusion can be replaced under the same permit before the unit is finished.
It can, when the shell holds up. The garage door opening is framed in with a wall and a window sized for the room, the slab is checked for a vapor barrier, and the walls get insulation. Near the coast we also look at the bottom plates and any metal straps for corrosion or rot before deciding to keep the structure.
Start with the roof, since it is the largest surface anyone sees. The unit borrows the main house's pitch and covering, then its fascia profile and window casing. If the older house has divided-light windows, the ADU windows carry a similar grid, and the color comes off a sample taken from the main house trim.
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Other work we do in Mar Vista
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