Repointing (sometimes called tuckpointing) is the process of removing old and corroded mortar from around brick or stone to a correct depth for a long lasting repair - without damaging the wall or the masonry unit. Then “pointing” or placing, compacting and tooling the correctly formulated mortar to the wall being repaired.
Properly excecuted, a pointing job will last many years, enhance your building’s appearance, help prevent water damage and provides stability to the masonry wall.
Information about Repointing (Tuckpointing) Kansas City Buildings
Historic mortar was a lime based mix rather than a portland cement based mix as modern mortars are. There are several reasons to re-point with the same type or compatible mix as what was used in the historic masonry. Using harder, less permeable modern day mortars can lead to total wall failure.
The amount of water used in the mix should be minimal to reduce shrinkage but still provide a workable consistency.
Need help with your Kansas City building or home? We would be happy to discuss your project!
Should you apply a sealer or water repellent after tuckpointing or repointing your masonry?
This is a question that we are asked often. One part of this question is easy to answer. You should almost never apply a "sealer" which we usually define as a film-forming product that can peel off of the masonry. These products usually create a sheen and peel like clear paint when they start to fail. They also tend to hold any unwanted moisture vapor within the masonry.
What about quality water repellents that are non-film forming? The answer is: it depends. Many times, it is a very good idea. There are several factors that we need to take into consideration when considering a water repellent application to your masonry. We want to preserve the brick or stone to our best ability without creating unintended consequences. We can provide a good assessment of your project and the appropriate treatments while reviewing for repointing or tuckpointing repairs.