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July 2008
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HPC Meeting Minutes 2008
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July 2008
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South Bend HPC
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Minutes
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1001361
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07/12 — Safety and Building Codes <br />■ Traditional building code requirements have hampered preservation attempts. Municipal <br />regulations have applied mostly to new construction. Changes in building use may trigger <br />extensive reworking of old buildings and compromise their design and appearance. Note: <br />A.D.A. is a civil rights act and not a building code. Although the construction requirements <br />are enforced through local building departments. <br />■ Enter the IEBC "International Existing Building Code." Attempts to balance the <br />improvements sought by society without imposing an excessive burden upon the owner. <br />Rehab is unpredictable by nature. Its basic goal is predictability and proportionality. The <br />current approach is to encourage areas to be revitalized, permit new uses and to keep all <br />buildings in use. The benefits reduce community costs while generating tax income. The <br />new standards apply to "Rehabilitation" (no change in the character and use of a building, <br />including modernization -preservation) and "Adaptive Reuse" (where the character and use of <br />a building changes). <br />• Since rehab work and building department interpretations may <br />drastically differ, outcomes are not consistent. <br />■ See also the National Trust publication: "Building Codes for Historic Buildings" <br />07/12 — Introduction to LEED <br />■ Over 50% of landfill debris is from new construction. The construction of buildings accounts <br />for 40% of the energy used in the US. <br />■ Energy loss in a building <br />• 35% through Walls <br />• 25% through Roof <br />• 15% from Draughts <br />• 15% into the Ground <br />• 10% through Windows (mostly frames) <br />■ The LEED "Leadership in Energy & Environmental Design" Standards is one method used to <br />encourage better use of resources to create safer environments. But it is not perfect. <br />• The rating system can award points for new materials that exceed credits to retain/reuse entire <br />existing buildings. There is an effort underway to reassess those priorities in the interest of <br />historic preservation and sustainability. <br />• Other "cheats" allow credits for local materials but apply a 500 -mile radius to that definition. <br />Credits for material reuse need not be for the same construction project (not necessarily a bad <br />thing) <br />• LEED-NC (New Construction) if less than 50% of the residents will remain inside the <br />building during construction. <br />• LEED-EB (Existing Buildings) if 50% or more of the residents will remain inside the <br />building during construction. <br />07/12 — New Additions —'The Good, the Bad and the Ugly' <br />■ Appropriateness changes over time. <br />■ US Secretary of the Interior states that new work should be differentiated from the original <br />and compatible with the massing, size, scale and architectural features to protect the historic <br />integrity of the property. <br />• Reversible: the original structure should be able to revert back its <br />prior condition. <br />• Preserve Historic Materials, Features and Character. (of the focus <br />property and its environment. Consider precedents) <br />• Protect Historical Significance — Make visual distinction <br />between the old and the new design <br />• Additions should be subordinate to the parent structure <br />• Typical New Addition Placement . <br />I� <br />
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