
The purpose of this approach is to determine the appropriate level of treatment for the preservation of historic wood frame buildings. When retention, including retention with some repair, is not possible,then replacement of the irreparable historic material can be considered. It begins with the premise that historic materials should be retained wherever possible. They range from hand-split clapboards of short lengths with feather-edged ends (shown here), to pit or mill sawn boards which can be beveled, rabbeted, or beaded. Historic wood siding exhibits rich and varied surface textures. This planning process is a sequential approach to the preservation of historic wood frame buildings. To assist owners, developers and managers of historic property in planning and completing rehabilitation project work that will meet the Secretary's "Standards for Rehabilitation"(36 CFR 67), the following planning process has been developed by the National Park Service and is applicable to all historic buildings.



(Igloo)" reproduced from David Macaulay's Great Moments in Architecture.
