Reso 2001-020 RDA 2001-002 - Laserfiche WebLink

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Appendix -Design Guidelines faces. All stucco surfaces should be smooth to prevent collection of dirt and surface pollutants and deterioration of painted surfaces. 3. Precast Concrete -options in terms of form work, pigments, and aggregates should be explored to create rich surfaces. 4. Ceramic Tile - is recommended as an accent material. 5. Not Appropriate: The following materials are not appropriate for exterior treatment: 6. Glazing -Clear glazing is strongly recommended. Reflective glazing should not be used. If tinted glazing is used, tint should be as light as possible (green, grey, and blue are recommended). H. ROOF DESIGN -Roofs should complement facade composition and wall surfaces in terms of style, detailing and materials. They should contribute expressive and interesting forms that add to the overall character of the area and are attractive when viewed from surrounding areas. Multi-slope roofs are generally recommended. a. Plywood batten board. b. Concrete block. c. Aluminum siding. G. WINDOWS -are an important element of building composition and an indicator of overall building quality. 1. Window-to Wall Proportion - In general, upper stories should have a window-to-wall area proportion that is smaller (typically 30 - 50%) than ground-floor office spaces or storefronts. 2. Window Openings -should generally be vertical (i.e., higher than wide) in orientation, or square; if square, window panes should be square or vertical in shape. Strongly horizontal "ribbon windows" are not recommended. 3. Window Inset -Glass should be inset a minimum of 3 inches from the exterior wall surface or from surrounding window frame to add surface relief; this is especially important for stucco buildings. 4. Shaped Frames and Sills - should be used to enhance openings and provide additional relief. They should be proportional to the glass area framed; e.g., a larger window should have thicker framing mem- bers. 5. Mullions and Muntins -are recommended to create multi-pane win- dows. Snap-in grilles or muntins should not be used. Multi-pane windows are especially recommended for highly-visible locations I~ such as the main building entrance, the first floor windows, and spe- cial or projecting building masses. 1. Roof Slopes -should be between 30° and 60°. 2. Roofs Should Extend - across a minimum of 75% of office building frontages to ensure the roof contributes significantly to the charac- ter of the building. 3. Roof Ridges - should be aligned to be parallel and/or perpendicular to the street frontage. 4. Roof Overhangs -are recommended. Overhangs should be a mini- mum of three (3) feet, with additional articulation in the form of sup- port braces, significant fascia panels, and/or exposed beams/rafter ends. 5. Fascia Panels - should be substantial in dimension, in proportion to the roof they trim. 6. Materials: a. Metal Seam Roofing -should be anodized, fluorocoated or painted. Copper and lead roofs should be natural or oxidized. b. Clay, Ceramic or Concrete Tile - is recommended for decora- tive roof shapes, such as parapets, domes, and turrets. c. Tar and Gravel, Composition, or Elastomeric Roofs - should be screened by parapets or false-front sections of sloping roofs. d. Asphalt or Wood Shingles -are not recommended. BALCONIES & LOGGIAS -Large and/or shared balcony areas should be designed as loggia/arcades, with attractive columns and other fram- ing members. -A3-