Quelles sont les options d'isolation et d'efficacité énergétique pour les murs en briques?
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What are the insulation and energy efficiency options for brick walls?

Insulation and Energy Efficiency Options for Brick Walls: A Comprehensive Guide for Montreal Homeowners


Brick walls are known for their durability and aesthetics, but many homeowners in Montreal may be concerned about their insulation and energy efficiency. Fortunately, there are several options to improve the thermal performance of brick walls, making them a suitable choice for both residential and commercial buildings. In this comprehensive guide, we will explore the various insulation and energy efficiency options for brick walls in Montreal.

Understanding the Thermal Properties of Brick Walls

Heat Capacity

Brick walls have a high heat capacity, meaning they can store and release heat slowly. This property helps to keep your home warm during the winter and cool during the summer, reducing energy costs.

Thermal Mass

The thermal mass of brick walls can also help regulate indoor temperatures, as the walls absorb heat during the day and release it at night, providing a natural temperature control system.

Insulation Options for Brick Walls

Cavity Wall Insulation

Cavity wall insulation involves filling the space between the two layers of a cavity brick wall with insulating material. This method significantly improves the thermal performance of the wall.

Internal Insulation

Internal insulation is the process of adding insulating materials to the inner surface of a brick wall. This method is more suitable for existing walls, as it is less invasive and disruptive than other methods.

External Insulation

External insulation involves adding insulating materials to the outer surface of a brick wall. This method provides excellent thermal performance and can be applied to both new and existing walls.

Energy Efficiency Tips for Brick Walls

Opt for High-Performance Bricks

Choose bricks with higher thermal performance, such as those with a low thermal conductivity or high insulating properties.

Use Insulating Mortar

Using insulating mortar can further improve the thermal performance of brick walls by reducing heat transfer through the mortar joints.

Seal Gaps and Cracks

Ensure that any gaps or cracks in the brickwork are sealed, as this can minimize drafts and heat loss.

Incorporate Passive Solar Design

Incorporate passive solar design strategies, such as orienting the building to maximize sunlight exposure, to take advantage of the thermal mass of brick walls.


Brick walls can be made more energy-efficient and better insulated through a variety of methods, including cavity wall insulation, internal insulation, and external insulation. By understanding the thermal properties of brick walls and implementing the tips and techniques outlined in this guide, Montreal homeowners can enjoy comfortable, energy-efficient living spaces while maintaining the classic look of brick walls.