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WHY KEEP HISTORIC WINDOWS? <br />............................................ <br />• Most heat loss occurs from ceilings, and from infiltra- <br />tionaround frames. Have an energy audit performed on <br />your home to determine sources of energy loss before <br />assuming that removing windows will solve the prob- <br />lem. <br />• Most wood windows that are greater than 60 years old <br />are constructed with old growth lumber, and are more <br />long lasting than their modern equivalents. <br />• Vinyl replacement windows give off toxic byproducts <br />• On average, replacement windows take 100 years to <br />pay for themselves in energy savings. -National Trust for <br />Historic Preservation <br />• 30% of replacement windows are replaced again within <br />10 years. -National Trust for Historic Preservation <br />A properly maintained single pane wood window with <br />a storm window added to it can be just as efficient as a <br />modern double paned low-e glass window. <br />when they are manufactured. <br />HOW TO BRING HISTORIC WINDOWS TO MODERN ENERGY STANDARDS <br />....................................................................... <br />• Keep exterior wood windows properly painted <br />and repair loose or dried out glazing putty. <br />• Repair and re-glaze broken panes rather than <br />replacing windows. <br />• Remove old paint if windows stick or are difficult <br />to close. <br />• Mount storm windows on the interior or exterior. <br />Storm windows mounted on the interior surface <br />maintain the integrity of the home's exterior. <br />ASSISTANCE AVAILABLE <br />.................................. <br />The Historic Preservation Commission's <br />Design Review Committee isavailable to offer <br />limited assistance and recommendations on <br />your Old Town home remodel project. Archi- <br />tects onthe committee are available to give you <br />advice on addition location, height and massing, <br />second story step-backs, and possible energy <br />saving options. <br />Committee members are able to give you <br />ideas that may help to maintain your old home's <br />character as you plan your addition. <br />This assistance is best taken early in your <br />planning process. More limited assistance is <br />available once your design is complete. <br />To avail yourself of this assistance, please con- <br />tact Meredyth Muth at muthm@ci.louisville.co.us <br />^ The Historic Preservation Commission advises <br />the City Council and City staff on preservation <br />issues. In addition, the Commission oversees the <br />process for properties in Louisville to be designat- <br />ed as local landmarks of historical relevance. <br />To find out about preservation incentives <br />that are available to owners of historic buildings, <br />please contact Meredyth Muth at 303.335.4536 or <br />muthm@ci.louisville.co.us. <br /> <br /> <br />or 303.335.4536. <br />11 <br />721 Grant Avenue <br />