The Secretary of the Interior's "Standards for Rehabilitation" require that where historic windows are individually significant features, or where they contribute to the character of significant facades, their distinguishing visual qualities must not be destroyed. Further, the rehabilitation guidelines recommend against changing the historic appearance of windows through the use of inappropriate designs, materials, finishes, or colors which radically change the sash, depth of reveal, and muntin configuration; the reflectivity and color of the glazing; or the appearance of the frame. Repair of historic windows is always preferred within a rehabilitation project. Replacement should be considered only as a last resort. However, when the extent of deterioration or the unavailability of replacement sections renders repair impossible, replacement of the entire window may be justified. In the case of significant windows, replacement in kind is essential in order to maintain the historic character of the building. However, for less significant windows, replacement with compatible new windows may be acceptable. In selecting compatible replacement windows, the material, configuration, color, operability, number and size of panes, profile and proportion of wood and metal sections, and reflective quality of the original glass should be duplicated as closely as possible... Preservation Brief 13: Sharon C. Park, AIA

• Match Historic Window Fabric

• Match Historic Profile & Site Line

• Match Methodology of Construction
Mortise & Tenon / Cope & Stick

• Match / Incorporate Glazing
Historic Glass, IG Glass, Low-e Glass, Etc.
Putty Glazing / Cypress Wood Beveled Trim

• Match Historic Paint / Stain Finishes

• Match Hardware, Pulleys, & Rope/Chain

• Match / Incorporate Weatherstripping

• Optional Installation Services

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For inquiries, email: info@leedsclark.com

Although Leeds Clark does not replicate historic steel, galvanized, or hollow metal windows, Tom Clark can assist architects and owners in the planning stage of the window preservation effort. Acting as a consultant, Leeds Clark can provide the architect/owner with 30 plus years of hands on experience in historic window preservation and solid relationships with the Department of Interior, state historical commisions, and local preservation organizations. Leeds Clark can act as the go between as the owner seeks approval from the various historic preservation organizations involved. Leeds Clark can also assist in the specification writing for the proposed historic replacement window, assuring that the replacement window specifications meet all Department of Interior Guidelines. In addition, Leeds Clark has worked close over the years with several of the top steel and architectual aluminum window manufactures to help replicate in kind replacement windows on projects across the country. Leeds Clark works close with the manufacturer to produce a mock-up window prior to the window preservation effort beginning. This allows all parties involved a finished product they can inspect and approve. If there are any changes to the specifications, corrections can be made during the planning stage. Tom Clark believes this approach allows the architect/owner the opportunity to establish a firm budget and helps address problem areas up front to help avoid project delays and change orders. Below is a few of the top steel and architectural aluminum window manufactures Leeds Clark has worked with over the years: