Elegant ThermoFibra 76X

What this system offers

A premium, steel-free uPVC system built for excellent insulation, airtightness and long-term comfort.

Where it works best

A strong choice for whole-house replacements, bedrooms affected by noise and homes where heating or air-conditioning costs matter.

Documented specifications

• Uw from 0,91 W/m²K
• Air permeability class 4
• Watertightness E1200
• Up to 48 dB

Your WS Ventanas specification

Final performance depends on dimensions, glazing, hardware, shutters, finishes and installation. We check the complete specification for your property before preparing the quotation.

Manufacturer data: figures are reference values from the linked technical documentation. They must be checked for the exact dimensions and configuration quoted. Manufacturer documents may be in Spanish; the WS product sheet is bilingual.