What causes cracks in foundations?
Cracks present in foundations or basement floors are sometimes linked to completely natural phenomena. Concrete is not elastic and undergoes shrinkage which can create small cracks that are often harmless. However, you should never ignore foundation problems, as they can hide more important issues such as structural cracks.
It is essential to control their evolution and ensure proper foundation crack repairs when needed to avoid water infiltration problems. These repairs are even more essential if your foundation walls are not protected by an effective waterproofing process.
The other most frequent causes of cracks in foundations:
- Movement and swelling of the soil, especially in clay soil
- Uplift of foundations due to freezing
- Tree roots that are located too close to the foundation or basement walls
- Poorly constructed foundations
- Poor balancing of the weight distribution of the house during construction
- Problems associated with pyrite in the backfill or concrete of the foundation walls and floors
- A physical shock on the house or excavation work carried out in an unsafe manner
When we don’t see them, what are the signs of possible cracking in foundations?
Apart from visible foundation cracks, there are many symptoms that indicate that your home does not have effective protection against external waterflow. These signs should be taken seriously and addressed immediately, since neglecting them could inflict serious damage on your home and generate significant financial costs.
Our specialists at Groupe Durasec can quickly analyze and detect problems in order to carry out rapid and meticulous foundation crack repairs.
The most common signs :
- An excessive degree of ambient humidity in the basement
- Signs of moisture on the walls
- Excessive condensation on windows and piping
- Water accumulation on the floors
- Musty, mouldy, or bad odors and fumes
- Softened plaster
- Crumbling concrete or the formation of salt deposits on concrete surfaces
- The formation of black spots and mould on walls, fabrics, or woodwork
- Rotting floors
If you notice that some of these symptoms appear in your basement or crawl space, you are most likely dealing with cracks in your foundation or you don’t have adequate waterproofing of your foundation walls. This is why it is necessary to contact the experts at Groupe Durasec for specialized foundation crack repair services.
Before taking action
Cracks in your foundation can occur for many reasons and repairing them can be a complex undertaking. Whether it occurred as a result of ground movement or infiltration, you should seek the advice of a specialist before undertaking any repair work.
We are accredited as a Réno-Maître, foundation repair contractor and foundation waterproofing specialists. Don’t hesitate to ask for our expertise today! We can identify the causes of your foundation problems and find appropriate solutions.
We can propose two solutions when you are dealing with foundation crack issues
In order to prevent the problem from arising again, you can proceed to:
- Injecting polyurethane foam through the interior of the cracks with the help of injection ports. This is the least expensive method and the injection is guaranteed for a period of 5 years.
- Spraying of cracks from the outside including excavation. We exclusively repair foundation cracks by applying the Rub-R-Wall waterproofing membrane. This revolutionary product offers the following advantages:
- It dries quickly and doesn’t deteriorate over time
- It’s ecological and doesn’t give off toxic products
- It can be installed during any season, starting at 4°C
- It has incomparable elasticity, even at low temperatures (as low as -26°C)
- It repairs and stems foundation cracks up to 3.2 mm (1/8 in) wide
- Any repair carried out is guaranteed for 25 years
Concrete injection is a process used for crack repairs, which is done with closed formwork and which is useful to fill a void. Using a pump, we inject an anti-shrink concrete formulation. This type of concrete does not decrease in volume during the curing period.
If your home has basement windows that face directly onto the ground outside or below, they must have window wells and proper drainage. Without proper drainage, rainwater can collect in the sill and window and seep in, damaging everything in its path. Your windows and foundation walls are at risk of serious damage.
Frequent humidity can also lead to the development of mould, bacteria and fungi that are dangerous to your health. Take action now to avoid serious structural and financial problems.
The Durasec solution
To protect your foundation and avoid having to undertake crack repairs, it is important to:
- Adjust the leveling and ground level of windows to create clearance
- Conduct a crushing process and add a drainage system, resting on your French drain (not connected) around the perimeter of the window
- Install a metal or masonry window well that will isolate the ground from the drainage area and prevent excessive water runoff from your yard to your windows
By carrying out this type of improvement, moisture and water will not stagnate anymore along your windows all while improving their lifespan. Your basement will be protected from all moisture and infiltration coming from this source.
Also, the presence of window wells is necessary for all windows that are too close to the ground. When selling or buying a property, owners who do not have window wells are often required to add them. You might as well install them as soon as possible!
Front-free basement entrance
Whether you want to build a new downward-sloping basement entrance, replace an existing one that’s feeling the effects of time and freezing, or even build an areaway, Groupe Durasec’s techniques offer a durable solution.
A downward-sloping basement entrance made with insulated formwork for concrete will allow you not only to obtain a high-quality job, but will also give you a wide range of finishing possibilities that you can do yourself thanks to recycled plastic finishes available in a variety of colors.
Downward-sloping garage entrance gutters
Who’s never been confronted with the scary sight of a garage filled with water due to a catch basin that’s too small at the bottom of their downward-sloping garage entrance?
Don’t worry, we have the solution! Whether you have a double or single garage, we will adapt your gutter accordingly. You will be protected in case of heavy rain!
Rebuilding the foundation wall footing
It’s possible that during the initial excavation, the depth wasn’t respected, additional material was added to the bottom of the excavation and that it didn’t have the bearing capacity to support the weight of the footing and the foundation wall. With a void underneath, the footing can then crack, creating a space between the wall and the footing. It will then be necessary to carry out repairs.
It’s also possible that the footing was poured onto frozen ground, causing a similar result. In this situation, the footing sags and cracks when thawing.
In both cases, it’s critical to rectify the situation since the sagging footing will lead to cracking in the foundation walls and rigid sidings, such as brick or stone.
Our certifications and warranties
Choosing Durasec Group for the execution and implementation of your projects ensures a lasting result that meets your expectations.