EFFECTIVE MAY 30, 2022 77 chapter 3 Decks • Design new decks to rear or obscured facades with minimal visibility from the street. • Use wood materials and simple wood rail designs with square balusters. • Rooftop decks may be appropriate if the decks are not visible from the front facade or the street. Select inconspicuous rail designs that minimize their visibility and prominence. • Stain or paint decks so that their colors are compatible with those of the building. • If screening is desired, use simple designs with the minimum number of vertical and horizontal framing members needed to support the screening. Use wooden frames only. Materials & Exterior Finishes • Use materials and exterior finishes that complement the historic building, such as frame or brick. Simple glass and metal designs that minimize the number of framing members may be considered on rear facades. • Use lap, weatherboard, or clapboard siding for additions to frame buildings. Lap siding exposure should be consistent with that on adjacent historic buildings. Use smooth cement wood siding rather than vinyl or aluminum siding. Avoid board-and-batten and other exterior finishes that accentuate the verticality of an addition. • Match surrounding historic masonry in width of the mortar joints, size and scale of the bricks, color, and texture. • Use roofing materials that complement the architectural style of the historic building, such as asphalt, wood, stone, slate, or fiber-glass shingles, 5V metal, or standing-seam metal. Rubber membrane roofing material is appropriate for flat roofs with parapet walls. • Alternative materials may be considered for use on a case-by-case basis. Considerations include the potential impact on historic significance, durability, accuracy of appearance, location, environmental impacts, and
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