19/12/25

Round PVC Windows: Style and Functionality in Unusual Shape

Round windows are a striking architectural element that can give a building a unique appearance. Modern PVC structures allow implementing this shape while preserving all the advantages of plastic glazing: airtightness, thermal insulation, and noise reduction.

Where they are used

• private houses and cottages (attics, gables, living rooms);
• cafes and restaurants (to create a memorable interior);
• public buildings (decorative facade inserts);
• saunas and steam rooms (as light portholes).

Design features

• The profile is bent using special equipment to precisely match the required radius.
• Steel reinforcement is used around the perimeter for strength.
• Seals have a special configuration to ensure airtightness along the entire circumference.
• The insulating glass unit is made of tempered glass or laminated glass for enhanced safety.

Available configurations

• Fixed — no opening mechanism, the simplest and most budget‑friendly option.
• Pivoting — the sash rotates around a central axis (less commonly around an offset axis).
• Top‑hung — the upper part tilts for ventilation.
• Combined — a mix of fixed and operable sections.

Advantages

• unique design that makes a building stand out from standard solutions;
• even distribution of light load;
• resistance to wind loads due to symmetrical shape;
• long service life when properly installed.

Key considerations

• higher cost compared to rectangular counterparts due to complex manufacturing;
• limited selection of hardware for opening mechanisms;
• precise load‑bearing calculations are required for large diameters;
• installation must be performed by specialists experienced in working with curved structures.

Round PVC windows are a bold design solution that, with proper implementation, will become a reliable and aesthetic element of your space.