Quels matériaux sont utilisés pour la réparation des fissures dans les murs de brique? (Guide 2024)
Reading time: 3'

What materials are used for repairing cracks in brick walls? (2024 Guide)

What Materials Are Used for Repairing Cracks in Brick Walls?

Introduction to Crack Repair

Repairing cracks in brick walls is a crucial aspect of building maintenance in Montreal. Understanding the materials used is essential for ensuring a lasting and effective repair.

Analyzing the Causes of Cracks

Before selecting repair materials, it's important to understand the cause of the cracks. This can range from structural movements, climatic changes, to natural wear and tear.

Repair Materials

Repair Mortar

  • Composition: A mix of cement, sand, and water, often enriched with specific components to improve adhesion and durability.
  • Use: Ideal for repointing and repairing small cracks.

Epoxy and Polyurethane Resins

  • Advantages: These resins provide a strong and waterproof repair, resistant to weather and contraction/expansion.
  • Application: Often used for finer, non-structural cracks.

Anchors and Reinforcements

  • Purpose: To stabilize and strengthen the structure.
  • Types: Metal anchors, steel rods, and other structural reinforcements.

Waterproofing Membranes

  • Function: Prevent future water infiltration into repaired cracks.
  • Varieties: Liquid applied membranes or adhesive sheets.

Advanced Repair Techniques


  • Process: Removal of old mortar and replacement with new mortar.
  • Importance: Essential for the longevity and integrity of the wall.

Resin Injection

  • Method: Pressurized injection of resin into the crack.
  • Results: An almost invisible and lasting repair.

Use of Structural Reinforcements

  • Approach: Installation of anchors and reinforcements in affected areas.
  • Goal: Prevent recurrence of cracks and increase stability.

Selecting Materials Based on the Type of Crack

Structural Cracks

  • Necessity: Use of robust materials such as steel anchors and epoxy resins.

Non-Structural Cracks

  • Solution: Repair mortar or polyurethane resins.

Cracks Due to Moisture

  • Treatment: Waterproofing membranes combined with proper drainage techniques.

Environmental and Climatic Considerations in Montreal

  • Freeze-Thaw Resistance: Selection of materials resistant to frequent freeze-thaw cycles in Montreal.
  • Durability: Choice of materials capable of withstanding climatic variations and urban pollution.

Maintenance and Follow-Up Post-Repair

Regular Inspections

  • Objective: Detect early signs of degradation or recurrence of cracks.
  • Frequency: At least once a year, ideally before and after winter.

Ongoing Maintenance

  • Actions: Cleaning of joints, checking of drainage systems, and application of protective treatments.
  • Purpose: To extend the life of the repairs and the structure.

The Importance of Choosing an Experienced Professional

  • Expertise: A qualified professional will know how to choose the best materials based on the type of crack and the specific conditions in Montreal.
  • Quality Guarantee: Correct installation of materials ensures a durable and reliable repair.


Repairing cracks in brick walls is a complex process that requires careful selection of materials and appropriate techniques. In Montreal, where climatic and environmental conditions present unique challenges, it is crucial to choose materials that offer both resistance and durability. By employing experienced professionals

and following a rigorous maintenance program, it's possible to extend the longevity of your brick structures and preserve the integrity of your real estate heritage.

Leave a comment

Please note, comments need to be approved before they are published.