The perfect refresher for Certified Jahn Installers.

Our simple solution achieves an almost invisible repair using Cathedral Stone Products’ non- and low-acid cleaners and our standard and laboratory-matched pigments and stains.

Why is training critical? Because, installed properly, Jahn Mortar will last as long as the original stone.

In this two-part series, I look at a pair of scenarios in which contractors often presume repair is impossible and replacement with cast stone is the only option. Part 1 addresses instances when terra cotta units can be repaired “in situ” rather than removed.

It was still winter when they received their Jahn Certification, so they began casting new units indoors, working in a climate-controlled area and prepping the building as weather allowed. When warm weather arrived, the units were ready to install.

Congratulations 2021 winners!

Dennis Rude recalls Jahn’s “Coming to America” story, Part II: how we ended up taking Jahn back to the world.

Recommendations: How to choose the correct Jahn Mortar for patching and making repairs to cast-stone panels installed on an entire building.