Ensuring the watertightness of your flat roof is essential to prevent water from seeping into the building. That's why it's inevitable to install a coating on your roof. However, over the years, natural wear and tear coupled with the vagaries of the weather can cause your waterproofing solution to lose its effectiveness, or even become obsolete. In this case, you can re-coat your membrane. But this is costly, and can be a major contingency in the budget.
If you find yourself in this situation, you can turn to a white heat-resistant paint to extend the life of your waterproofing solution.
What is retreading a sealing solution?
Re-coating is a method of restoring an existing waterproofing solution, giving it a new lease of life. To do this, the professional applies a new layer of waterproofing to an existing membrane.
All membranes can be retreaded. So, whether you have a terrace roof covered with an EPDM waterproofing solution, an SBS membrane or a bituminous roofing membrane, you're free to use this method.
The operation involves thoroughly cleaning the surface, applying a coat of primer and then installing the new membrane.
It should be noted, however, that retreading is an expensive solution. Although more economical than a complete waterproofing of a flat roof, it is nonetheless a costly process, both in terms of the raw materials purchased and the expertise required of the professional.
On the same subject: Roof terraces: how to repair seepage and what causes it?
Is there any solution other than retreading to improve the durability of waterproofing?
But if you want to extend the life of your waterproofing with a more economical solution than retreading, you can turn to cool roofing.
Cool roofing consists in applying an anti-heat paint to your existing waterproofing solution. This will insulate your roof deck from the sun's rays, improving the thermal comfort of your home.
If you own a large building, such as a retail space or office complex, a cool roof solution is an excellent choice, as it will effectively reduce the overall envelope required to maintain your waterproofing.
Like retreading, cool roof white paint can be applied to all existing waterproofing materials. For example, EPDM, TPO or PVC membranes will pose no problem and are totally compatible with this solution.
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