Peut-on faire un rejointoiement pendant des conditions météorologiques extrêmes? (Guide 2024)
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Can repointing be done under extreme weather conditions? (Guide 2024)

Can You Repoint During Extreme Weather Conditions?

When considering a masonry repointing project, it's natural to wonder whether you can undertake this task even in the presence of extreme weather conditions. After all, Quebec, including Montreal, Laval, Longueuil, the South Shore, and the North Shore, is known for its unpredictable and harsh climate. In this article, we will explore this crucial question and provide you with valuable insights to make informed decisions regarding your repointing project during extreme weather conditions.

Seasons in Quebec

Quebec is known for its distinct seasons, ranging from frigid winters to hot and humid summers. These climate variations can pose challenges for any masonry project, including repointing. Let's see how each season can influence your decision.

  1. Harsh Winter:

    • Winter in Quebec can be very cold, with temperatures well below freezing.
    • The icy conditions can make mortar more challenging to handle and apply.
    • There is an increased risk of mortar freezing during the curing process.
  2. Spring and Fall:

    • These seasons offer more moderate temperatures, which can be ideal for repointing.
    • However, spring and fall precipitation can make the work more complex.
  3. Hot Summer:

    • Hot summers in Quebec can be perfect for repointing as high temperatures promote quick mortar curing.
    • However, it's essential to take measures to prevent premature drying of the mortar during extreme heat.

The Importance of Planning

The key to a successful repointing project during extreme weather conditions lies in meticulous planning. Here are some points to consider:

  1. Choosing the Right Time:

    • Select the most suitable season based on your situation. Fall or spring may be more favorable to avoid extreme temperatures.
  2. Mortar Preparation:

    • Adapt the mortar composition according to the conditions. Special additives can help delay or accelerate curing as needed.
  3. Weather Protection:

    • Consider installing temporary shelters to protect the site from precipitation or intense sunlight.
  4. Continuous Monitoring:

    • During the work, closely monitor weather conditions and adjust your schedule as necessary.

The Benefits of Controlled Environment Repointing

An alternative to consider is repointing in a controlled environment, where the work is done indoors, shielded from the elements. This can be particularly advantageous during the harshest winter months. However, this method may be more costly due to the need for adequate indoor space.


Ultimately, it is possible to repoint during extreme weather conditions in Quebec, but it requires careful planning and adjustments based on the seasons. Choosing the right time, preparing the mortar, and continuous monitoring are essential to ensure the success of your project. If you have doubts or questions, it's recommended to enlist the services of masonry professionals, such as Masonry Montreal, who have the expertise to handle weather-related challenges.

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