Bel Air ADU Construction with a guarded roof

Bel Air ADU construction with a Class A roof, guarded gutters and a dry well, plus a deep overhang shading a glass door onto a stone patio.

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Pitched gently toward the rear, the roof of a Bel Air ADU sends its rain into a single continuous gutter under a metal guard, since leaf litter left in an open gutter gives embers a place to settle, and fire hazard mapping takes in part of Bel Air. A downspout drops into a buried line that carries the water to a dry well, well clear of the patio and the glass door at the front of the unit.

A roof built for embers and shade

The covering is Class A, either standing seam metal or a cool-rated tile, and the eaves are boxed with noncombustible soffits. At the front, the roof steps forward into a deep overhang over the glass door, which shades the room from high sun and keeps rain off the threshold. That overhang has its own short gutter tied into the same line, so no water drips onto the patio. Roof and eave vents carry a listing for ember resistance, and the ground under the drip line is gravel.

LADBS review and the drainage plan

Inspectors from LADBS follow a Bel Air ADU from footings to final, and its plan checkers trace the roof water to its outlet. A dry well needs distance from the footings and the property line, and if the lot slopes, a soils report may be required before infiltration is allowed. Mapped parcels also have the roof, vents, siding and glazing read against the state wildland rules, while the fire department weighs in on access from the street. We prepare the drawings and the engineering and carry the set to approval.

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