Since nearly all masonry products are porous, it’s normal to expect that through the course of time it will be soiled by pollutants around it.
Certain types of soiling are more damaging than others, which may be more of an eyesore than immediate risk to the building. Cleaning masonry with the proper gentle techniques can dramatically improve the appearance of the building while allowing inspection for other issues that can be curbed before becoming obvious and costly problems.
There are many possible ‘offending’ elements usually acting in tandem that must be treated differently and with care. These include:
Joshua Dunn is the owner of Alliance Restoration LLC, a Kansas City based masonry restoration contractor and consulting service that focuses on traditional methods in masonry construction and up-to-date preservation techniques to maintain our built heritage.