Our Approach to the Process
Mortar has the following rating scale- M,S,N,O,K, and L (lime putty). “M” being the hardest and “L” being the softest.
These are some of the factors we use in designing the right mortar for the right application. We use acrylic bonding agents and other ingredients that produce a superior mortar. We also custom dye each batch for very even color matching.
From our experience in analyzing the causes of deterioration in various masonry buildings we look long term for solutions that solve problems before they occur. This cause and effect approach helps us not only fix problems but eliminate the causes and produce work that literally lasts lifetimes.
History of Mortar
With the invention of Portland cement in 1824 and its widespread use in the United States (early 1900’s). Portland cement was then used as an additive to mortar. Which resulted in a “harder” mortar. Hard is not always good, in fact the use of too hard of a mortar is one of the major causes of masonry building deterioration. This is why all historic preservation societies recommend using a “soft” mortar for repointing historic buildings. We have seen many projects where a brick building built in 1890 is in better condition than one built in 1970. Why? Using the right mortar for the right application.