This intensive, full-day program is designed to provide owners, architects, engineers, contractors and conservators with a detailed, practical understanding of repair systems and mortars and methods for proper application. Through a combination of presentations, demonstrations and exercises, participants will learn the techniques and approaches needed to properly complete masonry repair projects.

February 5: Terra Cotta, Stone & Historic Concrete Repairs; Historic Repointing
MATERIALS PERFORMANCE
The workshop begins by illustrating the significance of each of the various materials properties for stone, concrete and masonry repair and repointing materials. Through examples and case studies, participants are then provided with an understanding of how to approach material selection.

APPLICATION PROCESS
Approaches to large-scale repair, replication of complex terra cotta glaze finishes, and the special issues revolving around wet terra cotta buildings are detailed. Particular attention is paid to properly sequencing work. The proper proportioning of both modern and historic mortars will be explained, including applicable ASTM and preservation standards.

HANDS ON SESSIONS
The workshops include live demonstrations and hands-on exercises, giving participants an opportunity to see and feel the various repair and refinishing systems used in terra cotta and stone repair, and to try their hands at some basic composite repair. Particular emphasis is placed on how to create different textures and profiles, how to blend repairs with adjacent elements, and how to control color variations. Contractors attending for certification training will be provided with additional guidance in extended hands-on portions of the program.

MATERIALS

Composite Patching: Deep and Thin-Section Repair Mortars, Casting Mortars

Adhesives and Grouts

Glaze Replacements and Faux Finishes

Weathering Stains

Masonry Mortars: Lime, Natural Cement, Portland Cement