John Harry has been a restoration consultant on the maintenance and preservation of the exterior envelopes of historic and older buildings for the last 23 years. Previously, he owned a company for 15 years which performed historic restorations. He has been involved in the restoration of over 500 structures ranging from log cabins to large institutional buildings. He is an expert on historic masonry construction and materials and has conducted over 120 training programs in masonry repair techniques and materials in cities across the United States and Canada.