Crack repairs are more common than most people think. We inspect and repair cracks on a weekly basis.
Cracks can play a key role in leaks experienced in roof slabs, balconies and general interior walls.
How Do You Know When A Crack Is Serious?
Identifying which cracks are detrimental to the structural integrity of a building can be tricky. Additionally, there are non-structural and unsightly cracks, but they serve no harm to the working condition of the structure.
Most cracks do not affect the stability or durability of a building. However, they do influence leaks. Allowing us to identify what type of crack you have and how it occurred, will help us determine what repairs are required. Any untreated cracks act as a passageway for water and chemical penetration.
Cracks that are fine (less than 0.3 mm), are acceptable as part of minor settlement.
Cracks that are 0.3 mm wide or greater will become a water ingress issue. Which can lead to concrete or plaster deterioration, affecting its strength and durability.
Successful long-term repair procedures must address the causes of the cracks as well as the cracks themselves. Repairs to concrete structures should be undertaken with the advice of a qualified and licenced professional. Inappropriate repair techniques may result in greater damage later. Repair of mass concrete structures will depend on the crack width, depth, if it is dormant or live (active) and the service conditions of the structure.
If I Do Not Repair The Crack, Will It Get Worse?
The key to successful and long-term crack repair starts by determining the cause and whether the cracks are dormant or active.
Dormant cracks will no longer progress and are stable. Cracks caused by drying, movement or temperature will be considered active cracks. However, sometimes they eventually stabilize and become dormant.
Fine cracks or hairline cracks may become a future durability problem. Therefore, we recommend these be sealed.
Active cracks experience growth. These types of cracks are as a result of continuous foundation movement or they act as contraction and expansion joints.
These cracks must be treated. Treatment for these cracks acts as if they are moving joints. Additionally, this repair must cater for the further potential movement of this particular cracks.
So, to answer your questions – It depends on what crack you have whether or not it will get worse over time.
If you require a crack repair inspection, or you require more information regarding our crack repair solutions, please get in touch with our team at info[at]apexwaterproofing.co.za