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Recycling and Preservation: Making It Work

 

Since the beginning of the preservation movement, restorers have used old materials taken from one building to replace missing elements in another. Countless historic structures now feature mantels or doors or stairs taken from other buildings. Even floor boards and ordinary lumber, where a two-by-four actually measures two inches by four inches, can be valuable. There were cases where one old building was plundered to restore another, but most restorers soon agreed that it was only responsible to remove materials from buildings that were being demolished.

With the rise of increased environmental consciousness, this idea of reusing building materials has spread beyond preservation. Now ‘deconstruction’—carefully dismantling buildings, rather than demolishing them, so that as many materials as possible can be reused—is promoted as a form of recycling. Like preservation, deconstruction promotes reusing not only trim or other decorative elements, but also such mundane items as floor boards and even two-by-fours.

As part of an overall commitment to maximize recycling, the Connecticut Department of Environmental Protection (DEP) has convened a Materials Reuse Network whose goal is to increase awareness of deconstruction and building materials reuse and to encourage more trained workers and professionals in the industry of deconstruction. Members of the network include professionals from the fields of deconstruction, demolition, architecture, green building development, training and education, community colleges, solid waste management, engineering, historic preservation, and environmental activism.

From its first meeting, in November 2008, the group recognized an obstacle: state law governing demolition includes deconstruction, and any person involved in building demolition or deconstruction must be registered with the Department of Public Safety. According to the deconstruction industry, deconstruction is the selective dismantlement of building components, specifically for reuse, recycling, or waste management. It differs from demolition, in which a site is cleared of its building by the most expedient means. The industry is suggesting ways to separate these activities in the regulations.

The key issue for historic preservationists is that no matter how desirable recycling may be, demolition and deconstruction both result in the same thing: the loss of a building. From the preservation point of view, the current demolition definition needs to be even more specific about what constitutes deconstruction or demolition, including what is now called ‘soft stripping’—the removal of windows, doors, and other trim—which currently doesn’t require a registered demolition contractor. 

The challenge for preservationists is to make sure that encouraging reuse of materials is balanced by the accepted hierarchy of treatments for historic buildings. From the most to the least desirable, the options are: 

  1. Restoration on-site for the original use;
  2. Restoration or rehabilitation on-site for a new use;
  3. Relocation;
  4. Recording architectural and historic features;
  5. Salvaging key elements for recycling, in other words, deconstruction;
  6. Demolition 

At the very least, the historic preservation community needs to be assured that state statutes and regulations not encourage selective dismantling of historic buildings unless all alternatives to demolition have been evaluated.

The Connecticut Trust will continue to follow the proceedings of the MRN/deconstruction group. In the meantime, local preservationists should make sure that their historic building stock has been surveyed and, when appropriate, listed on the State or National Register of Historic Places to discourage selective dismantling.

 

—Helen Higgins