Series 2

Performance, reliability and longevity

Developed to push the limits of fenestration, Series 2 was designed to offer dimensions that were until now primarily associated with aluminum, in a more accessible solution. The first of its kind to offer a casement sash up to 48 × 96 in. without reinforcement, it represents a significant step forward in innovation, design, and performance. Designed for today’s climate realities as well as those of tomorrow, it naturally fits within ambitious projects—including those guided by frameworks such as Passive House (Passivhaus), Novoclimat, LEED, or BREEAM—while setting a new benchmark for size, reliability, and longevity.

Series 2

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Designed for today’s demands — and tomorrow’s

Certified Passive House with a Uw value of 0.79 W/(m²K), Series 2 delivers approximately 35% less heat transfer—representing nearly 54% greater insulating capacity—than the ENERGY STAR threshold.
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Uncompromising structural performance

Series 2 goes beyond a standard window: greater strength, greater stability, and greater confidence—even in large sizes and demanding conditions. It even makes it possible to manufacture a 48 × 96 in. casement sash without reinforcement—larger than a door!
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Durability engineered for decades

Designed to last, Series 2 comes standard with German-made ROTO stainless steel hardware and the patented V-Perfect welding technology, known for its cleaner, sharper corners without visible bead—supporting long-term reliability and a superior finish.

44 mm Triple Glazing

Available exclusively with 44 mm triple glazing, Series 2 was designed to push performance further. The selection of glass, Low-E coatings, and thicknesses can therefore be tailored to the priorities of each project—whether for improved thermal gains, reduced energy loss, or enhanced acoustic comfort. A deliberate choice for those seeking greater quiet, more stable indoor conditions, and superior long-term performance.

Choice of Materials

PVC

PVC windows are the most popular due to their affordability, low maintenance, and good insulating properties.

Hybrid

The hybrid window is made of PVC at its core, with aluminum cladding applied to the exterior of the frame and shutters. This addition gives the window superior rigidity and elegance, resulting in unbeatable value for money.

Double hybrid

The hybrid double window combines the aesthetics and durability of aluminum with the energy efficiency of PVC. The exterior and interior are made of aluminum, while the frame (the core of the window) is made of AAMA-certified recycled PVC.

Types of windows available in this Series

Casement Window

Designed for maximum performance, the casement window offers exceptional sealing and efficient natural ventilation.

Awning Window

Designed for controlled ventilation, the awning window ensures excellent weatherproofing, even in the rain. Its outward opening contributes to the comfort of contemporary designs.

Fixed window

Maximizing light and visual clarity, the fixed window offers excellent thermal efficiency and superior airtightness. Without an opening mechanism, it presents a clean, architectural presence.

Architectural window

Conceived as a design element in its own right, the architectural window offers total creative freedom, without compromising on performance, comfort and durability.

An endless array of customization options

An infinite number of options, colours and finishes: to be discussed with your Isothermic expert when setting up your project.

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Series 2
Compare our PVC-Hybrid Windows
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Series 2
Compare our PVC-Hybrid Windows

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