In today's modern construction landscape, where environmental concerns, stringent regulations, and occupant well-being are more pressing than ever, indoor air quality has emerged as the new frontier of architectural design. It's no longer just an add-on but a critical factor for the comfort and health of those living in these spaces.

Thermal and acoustic insulation is essential for energy efficiency, but it must be paired with adequate air exchange to ensure indoor well-being. Otherwise, there's a risk of trapping moisture, mold, VOCs, and allergens — with negative effects both on the occupants' health and the durability of the building itself.

In this scenario, Mechanical Ventilation with Heat Recovery (MVHR) is the most advanced solution for a living environment that combines health, energy efficiency, and total well-being. DeFAVERI's MVHR systems, available in both single and dual flow, bring in purified air while recovering heat, fundamentally changing the indoor microclimate. The real game-changer is the ability to integrate MVHR directly into DeFAVERI's window frame system. This creates a synergistic system that not only ensures constant fresh, clean air but also guarantees impeccable thermal-acoustic insulation for the entire window opening.

This streamlines every design phase, optimizes performance, and enhances the entire building envelope. Thanks to advanced thermal recovery and filtration technologies, these systems perfectly align with stringent Nearly Zero Energy Building (NZEB) standards. When combined with the window frame system, MVHR transcends its role as a mere appliance; it becomes an integral part of the architectural design, elevating living standards with a conscious and future-forward sustainable approach.

Energy efficiency has become a guiding star in home design and renovation. With rising costs and growing environmental awareness, building more efficient, better-insulated, and comfortable homes is no longer an option—it's an urgent necessity. While traditional casement windows were once the go-to solution, technological innovation now offers the window frame system: a revolution that overcomes past issues, ensuring superior comfort and significant energy savings.

The window frame system is an advanced, prefabricated unit, increasingly popular in both new builds and renovations. It's a monolithic solution that seamlessly connects the masonry and the window frame, made up of three key elements: the sub-sill (or fourth side), which insulates the bottom; the side jambs, providing continuous insulation; and the roller shutter box, which protects and insulates the top, eliminating the primary thermal bridge. Integrating the window frame with the wall through this system creates a perfect fusion, eliminating insulation gaps that lead to heat loss.

Thanks to materials like EPS (expanded polystyrene), the continuous envelope around the window frame prevents heat from escaping in winter and keeps hot air out in summer, ensuring consistent indoor temperatures. The absence of thermal bridges prevents condensation and mold, common problems around windows, maintaining a healthy home environment and protecting walls. Window frame systems also deliver excellent acoustic insulation, shielding against external noise—an ideal choice for those living in busy areas. Plus, integrating an MVHR system into the window frame ensures constant air exchange without needing to open windows, blocking out dust, pollen, and smog, and further improving indoor air quality. Finally, superior weatherproofing protects the window frame from water infiltration, even during heavy rains, preserving the structure.

From a practical perspective, the window frame system offers an integrated structural solution that allows for precise finishes and a cleaner, more modern aesthetic. Being prefabricated and pre-assembled, installation is significantly faster, cutting down on construction time and costs, while the precision of prefabrication eliminates installation errors.

Economically and environmentally, these systems are designed to boost buildings' energy performance, reducing heat loss and optimizing consumption, which translates to a smaller environmental footprint. Made with materials compliant with Minimum Environmental Criteria (CAM), they qualify for tax incentives and energy certifications, making them a strategic choice for those aiming for low-impact buildings. The use of recyclable materials, like CAM-compliant EPS, reduces waste generation and simplifies recycling. Installing these window frame systems improves a building's energy class, increasing its market value and making it more appealing to sustainability-conscious investors and buyers.

With over sixty years of experience, DeFAVERI doesn't just produce window frame systems; they reinvent them. Their philosophy is clear: innovation must lead to simplification. That's why they develop solutions for window openings that stand out for their ease of installation, superior performance, and unmatched flexibility, adapting to any project, from new constructions to the most complex renovations. Behind every window frame system is a highly qualified technical team, ready to support every need and lead the industry towards new construction challenges.

Today, DeFAVERI is proudly part of ECLISSE, a leader in sliding doors. This union strengthens a shared commitment to "Made in Italy", respect for the entire production chain, and certified quality that places energy efficiency, living comfort, and rapid installation at the core of every decision. Choosing DeFAVERI window frame systems means investing in a solution that elevates the property's value, whether it's a new build or an energy efficiency upgrade.