Windows and PVC doors: a good choice?

Oknoplast PVC profiles. Oknopast and Clausio group, a long-standing partnership.
Oknoplast PVC profiles

Windows and PVC doors: a good choice?

Against all expectations, it is a recyclable material: PVC Windows and Doors, is it a good choice? We will try to help you. PVC is the only plastic in common use made with more than 50% of raw materials of mineral origin (salt), the source of which is considered inexhaustible. As a result, its share of non-renewable fossil energy (petroleum) and therefore its environmental impact are limited compared to other large polymers.

   PVC is 100% recyclable


PVC recycling by Veka, clausio north america
PVC recycling by Veka, Clausio North America

Before the 2000s, there was very little waste recovery by mechanical recycling. This was because of the collection problems and there were other recovery methods. On the other hand, PVC depends on a raw material whose price fluctuates. As a result and as with any recycling activity, the PVC sector is dependent on variations in the price of virgin material. Manufacturing or industrial waste is recovered. The offcuts are collected and reintroduced into the manufacturing process. Today, the leading PVC converters recycle approximately 98% of production waste. PVC is a 100% recyclable material, and VEKA is one of the first to set up a recycling subsidiary for end-of-life PVC windows and doors.

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Insulating material by nature

PVC is the abbreviation of the English name « Poly Vinyl Chloride ». It is the international symbol for polyvinyl chloride. It is a consumer thermoplastic polymer.

PVC comes mainly from two raw materials. 57% salt and 43% petroleum derivatives. PVC comes in white powder. This must be supplemented with products allowing its transformation into finished objects (mainly additives: stabilizers, lubricants, plasticizers, pigments, fillers, etc…).

It has low thermal conductivity and this makes PVC one of the most insulating materials in the design of insulating windows and doors. The wood has similar qualities.

Resistance to time.

PVC windows and doors are designed according to rules defined in France by the CSTB (Scientific and Technical Center for Building) which requires reinforcement of joinery for certain dimensions.

But some window and door manufacturers go beyond CSTB requirements. They use systematic reinforcements as standard regardless of the dimensions of their joinery. An indisputable guarantee of quality and reliability. For example, the OKNOPLAST company (on sale at Clausio Group: offers PVC windows and doors in several colors, with systematic opening + frame reinforcements, and with the same guarantees as white windows.

Steel reinforcements for windows and PVC doors Oknoplast
Steel reinforcements for windows and PVC doors Oknoplast
What about aluminum in all of this?

Aluminum has significant advantages. For example, the possibility of making large-size windows, in all colors and shapes. Veranda, pergola, rolling shutters are made of aluminum, but do not have an insulation objective.

Veranda Aluminum Clausio Group
Veranda Aluminum Clausio Group

You will understand, the biggest flaw of aluminum is that this metallic material is not a good insulator. Even being equipped with a “thermal break” system, the thermal conductivity coefficients are less good than for wood or PVC joinery.

Another small problem … the price. The raw material remains more expensive than PVC or wood, and this is reflected in the final invoice.

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