Keystone Preservation Group                               
Historic Preservation, Architectural Conservation, Scope Consultation, RITC Consulting  
Masonry Testing/Forensic Analysis of Conditions
We possess more than 15 years of experience with the diagnosis and
treatment of problematic conditions for historic masonry and other building
materials.  Having the opportunity to be involved in the earliest stages of
pre-construction design development can lead to fewer unknowns regarding
product selection, fewer problems during construction, lower potential for
construction delays and, most importantly, a better restoration.  

Our pre-construction testing surfaces include:

- Coordination/installation of forensic probes
- Treatment testing programs, including those for cleaning, stain removal,
desalination, composite repair, coatings, mortar
- Moisture mapping and monitoring
- Thermohygrographic monitoring

We have worked on a variety of projects ranging from small residences to
large religious buildings and state capitols.  As such, we believe that our ability
to identify solutions to complex problems for all types of building owners is
unmatched.  Furthermore, having direct experience with the construction
trades, academic research, laboratory analysis and design consulting makes
our ability to communicate effectively to a wide range of individuals who are
typically involved in a restoration project unique.

Keystone has successfully consulted on restoration programs for all types of
historic masonry:

- Granite
- Marble
- Limestone
- Sandstone
- Terra cotta
- Brick
- Stucco
Structural probe: Count Basie
Terra cotta probe: Count Basie
Rotec cleaning test: Cottage Club
Rotec cleaning test: Cottage Club
Terra cotta probe: Rodeph Shalom
Terra cotta probe: Rodeph Shalom
Mortar mock-up: Rodeph Shalom
Stain removal: Edgewater Mun. Bldg.