Whittier ADU Construction With a Roof That Keeps the Patio Dry
Whittier ADU construction with a roof that drains away from the glass door, so the patio under it stays dry and usable. Palmcrest Contractors.
Picture the patio of a Whittier ADU during a hard storm: if the roof drains toward the glass door, every gallon lands where people walk. So we tilt the roof plane the other way, collect its water in a gutter along the back eave and carry it through a downspout toward a rock-filled pit or a shallow planted swale, well clear of both foundations. The tall wall left standing over the patio then takes clerestory glass for extra light.
One slope, one gutter, one exit
A single slope keeps the framing simple and leaves one edge to manage. The back gutter is sized for the roof area, its downspout drops at a corner nobody passes, and the outlet goes into a basin of crushed rock wrapped in filter fabric, or to an emitter in a planting bed. Whittier sits in Southeast Los Angeles on the inland side of the county, so the roof also wants a light color and good ventilation under the deck to shed hard sun. Kickout flashing goes wherever the roof meets a wall.
Glass, shade and privacy from the main house
Under the tall roof edge, the glass wall opens to a patio the unit can call its own. We turn that wall away from the main house where the lot allows, so neither home looks into the other, and plant or fence a screen where it cannot. A short overhang over the door adds shade and keeps drip off the threshold. Low-e panes help a wide opening meet the state energy rules. You pay a set figure for the drawings, and a building quote follows our look at the lot.
ADU Construction in Whittier: what people ask
Toward a rear corner of a Whittier lot, where the glass wall can face open yard and the downspout can drain away from both homes. We also look at which main house rooms face the back, the sewer line and any trees with roots near the footprint before fixing the spot.
A Whittier design that keeps to one level and 500 square feet or less fits it. For a lot in this city the site plan has to trace the drainage path from the downspout as well as the setbacks, and the roof framing sheet shows the single slope. Bigger or two-level units need a design quote of their own.
Yes. The roof tilts away from that door on purpose, so the patio stays dry underfoot, and a glass slider or folding wall opens straight onto it. In Whittier we add shade with a pergola or a solid cover tied to the unit, and a row of shrubs hides that patio from the main house.
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