Show the intended collection point.
Place the gutter outlet and proposed storage location on the concept plan, keeping usable access beneath the cover in view.
Patio Covers · Milton, Washington
Patio covers in Milton add a roof runoff path that may include garden-water collection. If you want a rain barrel, discuss the collection point, full-container condition and overflow route while the gutter and downspout are still being planned.
Evergreen Home Pro helps you put the collection intention on the cover proposal. A barrel should not become an assumed solution for the entire roof’s stormwater obligations.

Compare shed and gable forms, width and projection in 3D. Include any rainwater-collection goal for the site review; the calculator does not design drainage, storage support or local approvals.
Choose a callback time if you want help with a more detailed estimate, or send the request without one.
Patio cover installation
Washington Ecology describes rain barrels as a supplemental irrigation source and notes that roof area and intended use affect storage needs. Have the project provider explain the full-water condition and safe siting, rather than comparing only the empty barrel’s size.
Place the gutter outlet and proposed storage location on the concept plan, keeping usable access beneath the cover in view.
Have the provider describe where excess runoff goes and how the filled container is supported. Avoid assuming the existing deck or loose paving is suitable.
Confirm applicable stormwater requirements with Milton. A collection accessory does not by itself establish an approved site drainage design.
Before work begins
Milton’s stormwater page provides different project categories and guidance for new impervious area. Have the applicant identify the actual site changes and relevant review rather than assuming an accessory barrel exempts the new roof.
Record the collection goal with the roof area and drainage proposal before fixing post locations and the downspout route.
Storage depends on the roof, rainfall and intended use. Ask how excess water is managed.
Have the applicant confirm the project’s stormwater obligations; the accessory alone does not establish compliance.
Ecology identifies local approval and suitable systems for in-home use. Do not treat a garden collection accessory as a potable supply.