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i III-B-11. Replace deteriorated or damaged masonry features, if necessary, to match the
<br /> 2 original in design, material, dimension, and detail. Replace only the deteriorated
<br /> 3 portion or detail of a feature rather than the entire feature whenever possible.
<br /> 4
<br /> 5 III-B-12. Replace a missing masonry feature with a new feature based upon accurate
<br /> 6 documentation of the original or a new design compatible with the scale, size,
<br /> 7 material, and color of the local landmark building.
<br /> 8
<br /> 9 III-B-13. It is not appropriate to introduce new masonry features, such as a large temple-
<br /> to front porch or details to a building, on a designated property, in an effort to create
<br /> 1 i a false historic appearance.
<br /> 12
<br /> 13
<br /> 14 Architectural Metals
<br /> 15 Architectural metals including copper, .,,,,, .
<br /> .1... g f^r.
<br /> 16 bronze, brass, tin, steel, cast iron, � _
<br /> 17 wrought iron, aluminum, and stainless �` �� �."�u � ��-��
<br /> 1g steel are diverse in their properties and � ,� , � `� �
<br /> 19 may be wrought, cast, pressed, rolled, or •�;, �-�f � :��
<br /> 2o extruded. Maintenance and procedures - ;.� " �
<br /> 21 for architectural metal include: '�`
<br /> 22 ■ Routine inspection for evidence of .�„
<br /> 23 rust, corrosion, galvanic action,
<br /> 24 structural failure or weakness. � `-
<br /> 2s ■ Provide proper drainage to prevent _
<br /> 26 standing water.
<br /> 2� ■ Keep metal roofs and gutters free of debris and leaves.
<br /> 2s ■ Retain protective coatings such as lacquers or paints to prevent corrosion.
<br /> 29 ■ Clean surface to remove corrosion or to prepare for recoating or repainting
<br /> 3o using the gentlest effective method.
<br /> 31 ■ Recoat or repaint metal surfaces as needed to prevent corrosion.
<br /> 32
<br /> 33
<br /> 34 DESIGN STANDARDS for Architectural Metals
<br /> 35
<br /> 36 III-B-14. Retain and preserve architectural metals, metallic features and surFaces, as well
<br /> 3� as their form, pattern, detail, color and texture, through appropriate methods.
<br /> 38
<br /> 39 III-B-15. Clean soft metals with chemical cleaning solutions using the least intrusive
<br /> 4o method. Test first to assure that they do not damage the metal or its finish. Do
<br /> 41 not clean soft metal surfaces with harsh abrasive methods.
<br /> 42
<br /> 43 III-B-16. Repaint architectural metal surfaces, when needed, using paint that is appropriate
<br /> 44 for the use. (Staff can provide guidance as necessary.)
<br /> 45
<br /> 46 III-B-17. Repair deteriorated or damaged architectural surfaces and features using
<br /> 47 traditional methods for reinforcing, splicing, or patching.
<br /> 48
<br /> 49 III-B-18. Replace deteriorated or damaged architectural metal only if necessary. Match
<br /> so the original design, material, dimension, and detail. Replace only the deteriorated
<br /> 51 portion or detail rather than the entire feature whenever possible. Consider
<br /> 52 compatible substitute material only if using the original material is technically not
<br /> 53 feasible.
<br /> 54
<br /> 9/27/2010 Draft Orange County Design Standards 29
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