§ 117-257. Manufactured housing units, residential design.

Compliance with all of the standards of this section is required in order for a manufactured housing unit to be classified as a residential design, manufactured housing unit.

(1)

Size.

a.

The minimum width of a residential design, manufactured housing unit shall be 22 feet, with width measured perpendicular to the longest axis at the narrowest part.

b.

The length of a residential design, manufactured housing unit shall not exceed four times its width, with length measured along the longest axis.

c.

A residential design, manufactured housing unit shall have a minimum area of 1,150 square feet enclosed and heated living area.

(2)

Roof.

a.

Pitch. The roof must be predominantly double-pitched and have a minimum vertical rise of two inches for every 12 inches of horizontal run.

b.

Materials. The roof must be covered with material that is customarily used on site-built housing units. Customary materials include wood, asphalt composition shingles, or fiberglass shingles, but not aluminum, corrugated fiberglass, or metal.

c.

Eaves. The roof shall have a minimum eave projection and roof overhang of ten inches, which may include a gutter.

(3)

Siding.

a.

Materials. Exterior siding must be of a material customarily used on site-built housing units. Customary materials include wood, composition, simulated wood, clapboards, conventional vinyl or metal siding, brick, stucco, or similar materials. Customary materials do not include smooth, ribbed or corrugated metal or plastic panels or material that has a high gloss finish.

b.

Design and placement. Siding material shall extend below the top of the foundation or curtain wall, or the joint between the siding and enclosure wall shall be flashed in accordance with the city's adopted building code.

(4)

Installation of unit.

a.

Guidelines. The unit shall be installed in accordance with the recommended installation procedures of the manufacturer, and the standards established by the International Conference of Building Officials and published in the most recent edition of Guidelines for Manufactured Housing Installations.

b.

Foundation. A continuous, permanent concrete or masonry foundation or masonry curtain wall, unpierced except for required ventilation and access which may include walk-out basements and garages, shall be installed under the perimeter of the unit, also in accordance with International Conference of Building Officials guidelines.

(5)

Entrance landing area. At the main entrance door to the unit there shall be a landing that is a minimum of five feet which is constructed in accordance with building code requirements.

(6)

Transport equipment. All running gear, tongues, axles, and wheels must be removed at the time of installation of the unit on the lot.

(7)

Finished floor elevation. The finished floor of the unit shall meet the manufacturer's specifications unless the unit is located in a floodplain, in which case floodplain regulations shall rule.

(8)

Additions. Attached additions and detached garages shall comply with the building code, and floodplain regulations, if applicable. All standards of this section shall apply to such additions and garages.

(Zoning Ord., § 14.32.10)