Historic Masonry Cleaning Solutions

The cleaning of historic masonry is one of the most important aspects of a restoration project. Simple cleaning can make the difference in the overall impression of a project, regardless of any structural or sub-surface issues that may have been sucessfully resolved.  This review of historic masonry cleaning covers the most common means and methods, including both chemical and mechanical techniques, some old and well-known, and some newer methods that are less familiar. 


Related Projects

Masonry Cleaning, Water Only

Masonry Cleaning, Water Only

Various Cities and Counties,
California, USA

  Here, we are cleaning some brick at the Presidio in San Francisco using a garden hose. No chemicals, no pressure, only water. Moderately pressurized water applied to the surface effectively removes instances of atmospheric carbon and soiling. In this case, it may have...

Masonry Cleaning With Chemicals

Masonry Cleaning With Chemicals

Various Cities and Counties,
California, USA

Chemical cleaning of masonry surfaces is probably the most common method used for removing dirt, soiling, and old coatings from historic masonry surfaces. It is uually cost-effective and offers the most consistent results for the most common types of cleaning.  Alkaline cleaning products are usually effective in breaking down organic...

Masonry Cleaning With Abrasives

Masonry Cleaning With Abrasives

Various Cities and Counties,
California, USA

Abrasive cleaning is a generic term for abrasive media forced against the masonry surface in order to mechanically remove the soiling agent or coating. A much-abused method for the last hundred years, it has been unfairly tarred with the brush of "inappropriate" and "harsh" when in truth it was simply...