ADU Construction in Valley Glen Under a Single-Slope Roof
Valley Glen ADU construction with a single-slope roof that sends every drop to one gutter, then to a planter or dry well away from both foundations.
A single-slope shed roof suits a Valley Glen backyard unit, since all of its water runs to one edge. We tilt that edge away from the main house and the neighboring fence, so a single gutter collects the flow. The downspouts then feed a planter box or a gravel-lined channel that lets water soak in on the lot. On a yard that slopes, the low edge of the roof can follow the ground.
Pitch, gutter and overflow
A shed roof still needs enough pitch for its covering. Asphalt shingles call for a steeper pitch, and a membrane or standing-seam metal can go lower. The gutter on the low edge is sized for a hard storm, with a downspout at each end so one clog does not send water over the side. A gutter guard keeps leaves out. At the high edge, a flashed fascia stops water from running back under the roofing. Clerestory windows along the tall wall bring in light without facing the neighbors.
Where the water ends up
Water leaving the downspouts has to move away from both foundations. A splash block alone can soak the ground beside a footing, so we run solid pipe to a planter, a dry well, or a curb outlet where the city allows one. LADBS reviews that drainage on the site plan, and rules for keeping runoff on the lot can apply to new construction. If the yard slopes toward the house, a swale or a channel drain catches surface water before it reaches the back door. Every pipe end gets a screen or a grate.
About our adu construction workEverything we build in Valley Glen
ADU Construction in Valley Glen: questions
Higher ground suits a Valley Glen unit, so roof water and surface runoff flow away from it. Inside the setbacks, we look for a place where the roof's low edge faces open yard, away from fences and the main house. After that, we confirm the drain can reach the house sewer and that carts can reach the site.
Yes, when the Valley Glen unit stays at a single level and 500 square feet or less. Its site plan has to show the direction the roof sheds, each downspout and the pipe route to where the water lands. The build, and any engineering a sloped yard calls for, get their own quote.
Drainage work beyond the gutters adds up: a dry well needs digging and gravel, and a pipe to the curb needs a city permit. Standing-seam metal costs more to install than shingles. If the pad has to be leveled, holding back a small cut adds masonry. Choosing a shorter pipe route can trim the drainage line on the quote.
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