Historic Preservation Technical Documents
These technical documents contain information for maintaining, repairing and rehabilitating the traditional building materials and features associated with historic buildings, landscapes and structures.
Discussion or inclusion of a product or method in these documents does not guarantee that the product or method is suitable for all projects or locations. Specifications should be edited as necessary to address the conditions and requirements of a particular project. Pre-testing or work sample provisions are recommended for inclusion in specifications where results may be affected by building-specific conditions or local climate.