30/01/26

Myths about Plastic Windows: 5 Most Persistent Misconceptions

Plastic windows have long become a common element in homes, yet numerous myths still surround them. Let’s examine 5 of the most widespread ones — and explain why they shouldn’t be believed.

«PVC releases toxins in hot weather»
In reality, high‑quality PVC is safe: harmful substances are only released when heated above 225 °C, which never happens in household conditions. Certified profiles undergo strict ecological safety tests.

«Plastic windows don’t “breathe”, causing stuffiness»
The tightness of windows doesn’t deprive the room of air — the issue only arises in the absence of ventilation. The solution is micro‑ventilation mode or a ventilation valve, which ensures fresh air flow without drafts.

«All plastic windows are the same — you can buy the cheapest ones»
This is risky: cheap models often have thin profiles without reinforcement, weak hardware, and single‑pane glazing. The result is air leakage, condensation, and rapid deterioration. Quality is determined by certifications, profile thickness (at least 60 mm), and component brands.

«Plastic windows quickly turn yellow and lose their appearance»
Modern profiles with UV stabilizers retain their whiteness for decades. Yellowing only occurs with low‑quality PVC containing excess chalk. Check customer reviews and manufacturer warranties.

«Windows can only be installed in summer»
Installation is possible at any time of year. Experienced installers work quickly, minimizing indoor cooling. Winter can even be more advantageous: many companies offer discounts and promotions. The key is to entrust the installation to professionals.

Conclusion: most fears about plastic windows stem from outdated beliefs or low‑quality products. Modern PVC structures, when properly selected and installed, can last 30–40 years, providing comfort and energy efficiency.