18/12/25

PVC Window Shapes: When Geometry Creates Style

Beyond conventional rectangular windows, modern PVC structures can take on the most unexpected shapes — opening up broad possibilities for architectural expression and custom design.

Main non‑standard shapes:

• Arched — a semicircular top gives buildings a classic or romantic appearance. Often used in cottages, restaurants, and historical reconstructions.
• Triangular — ideal for attics and houses with sloping roofs. Can be equilateral or right‑angled.
• Trapezoidal — fit well into complex architectural solutions, creating a dynamic effect.
• Round and oval — accent elements of the facade, often used as portholes or decorative inserts.
• Polygon (pentagonal, hexagonal) — create a unique geometric pattern, popular in contemporary architecture.
• Bay windows — a combination of several windows projecting beyond the wall plane, increasing glazing area and light intake.

Manufacturing specifics:

• Complex shapes require special equipment for profile bending.
• The more intricate the contour, the higher the cost (additional work on reinforcement and sealing).
• Airtightness and thermal insulation remain at standard window levels with proper installation.

Key considerations:

• Not all opening types suit non‑standard shapes (e.g., sliding systems are rarely implemented in arched designs).
• Wind load must be considered — complex shapes may require reinforced framing.
• For large glazing areas, a structural load calculation is mandatory.

Non‑standard windows are not just about aesthetics but also an engineering challenge. A well‑designed project and professional installation will turn an unusual window into a reliable and striking element of your home.