The Trilogy of Exterior Masonry Preservation

The Trilogy is your guide to the repair, restoration, and preservation of exterior masonry and concrete surfaces for structures of all ages. Whether new, two, or two hundred years old – the chemistry and principles are the same. Author is a primary author of ASTM’s definitive publication, STP 935, Cleaning Stone and Masonry. Author was a featured speaker at the 2010 APT Conference, and was invited to speak on The Evolution of Doomed Practices, which exposed the continuing sale and usage of destructive HCl acid products for cleaning limestone and other acid-soluble materials, previously condemned by ASTM STP 935 and the Secretary of The Interiors Standards for Historic Preservation Projects. Author developed the CSI Monograph “Specifying Water Repellents”, the most extensive treatise on the subject ever written. Trilogy includes a practical guide for determining when surface treatments are appropriate and detailed instructions for achieving optimum performance.