Loose, lifting and buckling veneer are common problems encountered with historic furnishings. Historic furnishings are constructed from various species of wood and are adhered almost exclusively with the natural adhesive animal hide glue. Various factors contribute to the delaminating and distortion of veneers. An ideal environment rarely experiences rapid and/or dramatic fluctuations in temperature or humidity. Housed in optimal environmental conditions, an animal adhesive will maintain its integrity for many years; however, such conditions are seldom the case.