Why Historic Masonry Requires A Different Repointing Approach Than Modern Homes

Historic brick is often softer and more porous than modern brick. Its original mortar was designed to work with those qualities by allowing moisture to escape through the joints.

When incompatible mortar is used, moisture can become trapped inside the wall. This may cause cracking, flaking, or loss of the brick face. A harder mortar is not always better, especially when the brick is softer.

Proper repointing considers more than color. Mortar strength, flexibility, texture, vapor permeability, and joint profile should all be compatible with the original masonry.

Careful removal is also important. Proper restoration tools help remove deteriorated mortar without damaging the surrounding brick.

The goal of historic repointing is to replace failing mortar while preserving the original brick, character, durability, and appearance of your historic masonry home.