Pointing, which is the name given to the visible layer of mortar between the joints of your stone or brickwork, is much more than a decorative feature. It has an important weatherproofing role as it fills in any irregularities in the bricks or stones while providing around 15% of the surface area of your building, taking much of the impact of the elements.
However, once your pointing has deteriorated, it can no longer provide that protection and your brick and stonework will start to erode more quickly. What’s more you can end up with voids which allow water to enter and collect within the structure. This can cause damp and even structural damage. How long has it been since your home was properly repointed?
Repointing is the art and technique of restoring the mortar so that it continues its job of protecting the surface of the house from the elements. Performed by skilled professionals like MPC employees, your pointing can last for half a century or more.
Why DIY repointing can be a false investment
On the surface, repointing can seem a relatively simple job and something you might consider doing yourself. However, a lot of people, even those in the trade, have caused problems by not understanding the importance of using the right materials and techniques.
For example, lime mortar, used in most homes up to the Victorian period, should never be replaced by cement. Older houses need breathable lime mortar to expel moisture and repointing with cement can trap water, leading to serious damp problems (often mistaken for rising damp).