Are you noticing cracks appearing in the mortar between your bricks or even within the bricks veneer? It's a common occurrence in many buildings and not all cracks are the same, but knowing when to take action can be a bit puzzling.
In this blog, we'll explore the intricacies of cracks in brick mortar and bricks. This will help guide you on when they're merely cosmetic and when they may indicate underlying structural issues.
By understanding the different types of cracks, their potential causes, and the signs that warrant professional attention, you'll gain the knowledge needed to assess and address cracks in brick mortar and bricks with confidence.
Wall cracks can be attributed to various factors, each with its own unique implications for the building's structural integrity. Let's explore some common causes of these cracks.
Exposure to extreme weather conditions, such as freeze-thaw cycles, heavy rainfall, and temperature fluctuations, can seriously damage brickwork.
Over time, repeated expansion and contraction due to temperature changes can weaken the mortar, leading to cracks.
Changes in the underlying soil or ground conditions can also contribute to cracks in walls.
Soil settlement, expansive clay soils, or nearby excavation work can result in uneven settling of the foundation or cause foundation movement. This causes the bricks above to crack as they adjust to the shifting ground.
Water is one of the most common culprits behind cracks in brick walls and mortar joints. Poor drainage, leaky gutters, and inadequate waterproofing can allow water to seep into the brickwork. Freeze-thaw cycles speed up this process, as water trapped within the bricks expands when frozen, exerting pressure on the surrounding masonry and leading to cracks.
Lastly, flaws in the construction process can contribute to the formation of cracks in brick walls and joints. Improper mixing or application of mortar, inadequate curing time, and insufficient structural support can all weaken the integrity of the brickwork and increase the likelihood of cracks.
When assessing cracks in brick walls, understanding their size and severity is crucial in determining the appropriate course of action. Let's examine different categories of brick cracks and when they should raise concerns.
Small cracks in brick mortar or brick veneer cracks are common and may not always indicate significant structural issues. These cracks are typically hairline cracks or superficial fissures that result from minor settlement, shrinkage, or thermal expansion.
Medium-sized cracks, typically ranging from a few millimetres to several centimetres in width, merit closer inspection and evaluation. These cracks may be indicative of more significant structural issues, such as foundation settlement, water infiltration, or inadequate support.
Large cracks in walls, exceeding several centimetres in width or length, are cause for immediate concern and require prompt attention. These cracks often signify serious structural problems, such as foundation failure, excessive settlement, or significant structural movement. Large cracks may compromise the stability and safety of the building, posing risks of collapse or further damage if not addressed promptly.
When it comes to cracks in brick walls, their orientation can provide valuable insights into the underlying causes and potential structural implications. Let's examine the distinguishing characteristics of these brick cracks:
Vertical cracks in walls typically run straight up and down, perpendicular to the ground. These cracks may result from various factors, including settlement, thermal expansion, or structural movement. While these cracks are common in brick veneer and may not always indicate serious structural issues, they should be carefully monitored for any signs of progression or widening.
In some cases, vertical cracks may be relatively benign, especially if they are hairline fractures or superficial fissures.
However, if vertical cracks are extensive, widening, or accompanied by other warning signs such as bowing or bulging of the wall, they may signify more significant structural problems requiring professional assessment and intervention.
Horizontal cracks in brick walls run parallel to the ground, typically indicating more severe structural issues. These cracks may be caused by excessive settlement, foundation failure, or lateral pressure exerted on the wall. They are concerning because they can compromise the integrity of the wall and may indicate serious structural damage or even severe structural damage.
If left unaddressed, they can lead to structural failure or collapse, posing risks to the safety of occupants and the stability of the brick home.
Another consideration is stair step cracks. Stair step cracks are a combination of both which may indicate foundation repair is required. These cracks could indicate the home's structural integrity is compromised likely due to the home's foundation shifting. When the foundation shifts, stepped cracks appear which will require professional inspection and professional intervention.
While it's challenging to entirely eliminate the risk of structural cracks in walls, there are proactive measures you can take to minimize their occurrence and preserve the structural integrity of your brickwork.
Start by ensuring proper site preparation and foundation construction to minimize settlement and ground movement, which can contribute to cracks.
Next, implement effective drainage systems to prevent water infiltration and minimize the risk of moisture-related damage.
Lastly, regular maintenance, including repointing mortar joints and repairing any damaged bricks, can help prevent small cracks from worsening over time.
The cost of brick-and-mortar repair can vary significantly depending on various factors, including the extent of the damage, the size of the area needing repair, and the specific repair techniques required.
Minor repairs, such as patching small cracks or repointing mortar joints, are generally more affordable and can be completed relatively quickly.
However, extensive damage or structural issues may require more extensive repairs, such as rebuilding sections of the wall or addressing underlying foundation problems, which can be more costly.
Deciding whether to hire a professional masonry contractor or attempt DIY brick-and-mortar repairs depends on various factors, including the complexity of the project, your level of expertise, and the resources available.
Marco Pedri, who is a rental agent in Toronto, recommends to work with professional masonry contracts. He recommends them because they have the expertise, specialized equipment, and experience necessary to assess the scope of the damage accurately and implement effective repair solutions.
Whether you're facing minor cracks or extensive damage to your brickwork, our team of experienced masonry contractors is here to help.
Contact us today to schedule a consultation and take the first step towards preserving the longevity and value of your property with expert brick repair and restoration services.
Piotr Lesiak
