Windows tested at -30 degrees Celcius

Concerto, the window systems tested for air tightness, at -30 C as well as at room temperature.

Why is it so important to determine the degree of air infiltration and exfiltration tightness level at -30°C?

The reality is that during harsh Eastern Canada winters, the external air temperature ranges from 0°C to -30°C

Regardless of the materials used,all windows undergo the same dimensional variations when exposed to such large temperature differences which can alter the products' air/water tightness, increase the energy consumption and the risk of condensation.

PVC Advantages

PVC is insensitive to climate change and offers excellent insulation quality.

It contributes to sustainability of building and construction products and is 100% recyclable all through its life cycle.

PVC requires almost no maintenance and is very resistant material.

The transformation of PVC into profiles requires very little energy. Price is very competitive.


The quality of our window and patio door systems subjected to our in-house certification programs is borne out through recognition by all the major standards associations, which attest to the superiority of Thermoplast product performance. Complementary to our patio door products, you will find certification recognized by the following standards associations:

Designed for performance and durability

Designed for
performance and durability

  • Frame rigidity and integrity
  • Temperature distribution controlled
    through structural components
  • Coefficients of thermal expansion
    of materials are suited for harsh
    climate conditions
Energy Star

The economics of energy
efficiency puts the future
in your pocket.

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