France Fermetures launches Zen'Up and Zen'Slide: mosquito nets designed for peaceful and ventilated nights

The mosquito net market and evolving needs in housing

The spread of the tiger mosquito across France — affecting 81 departments by early 2025 — is changing housing practices. Mosquito nets are becoming a passive thermal comfort equipmentpromoting nighttime ventilation without insect intrusion.

The market is experiencing estimated growth of 30% by 2029, carried by:

• the increase in summer temperatures,
• the search for air conditioning-free solutions,
• the challenges of indoor air quality.

This development is consistent with environmental regulations. RE2020, which encourages passive cooling strategies.

"Mosquito nets provide optimal natural ventilation while preventing insects from entering."

One limitation must be taken into account: effectiveness depends heavily on the quality of installation and peripheral sealing, particularly in renovation.

Technical fabric and envelope performance

Both ranges are based on a canvas made of PVC-coated fiberglass, a material commonly used for its mechanical strength and dimensional stability.

This design allows for:

• another preserved air circulation,
• visual transparency,
• resistance to repeated stresses.

In a building context, these insect screens contribute to airflow management without compromising the overall performance of the building envelope. A thermal design office can integrate this type of solution into a strategy for natural cross ventilation.

A concrete example: in a south-facing dwelling, a mosquito net makes it possible to keep the windows open at night to evacuate summer overheating, without resorting to an active system.

Zen'Up and its implementation on vertical openings

The Zen'Up model is designed for windows with a vertical implementationIt consists of a box, slides and an aluminum load bar.

Its technical specifications include:

• dimensions up to 2,100 mm wide and 2,500 mm high,
• system of slides and counter-slides to compensate for flatness defects
• brush seal ensuring a peripheral sealing.

This device simplifies installation during renovations, particularly when the frames are out of square. A carpenter can then adjust the installation without extensive structural modifications.

The integrated braking system ensures a controlled maneuverlimiting wear on the mechanism and improving user comfort.

"The sliding system allows for effective adjustment of the games and compensates for any defects in the paintings."

Zen'Slide and adaptation to large bay windows

The Zen'Slide model meets the requirements of side openings, particularly bay windows and French doors.

It is distinguished by:

• a maximum width of 2 800 mm,
• a chain system for smooth operation,
• a magnetic closure without mechanical wear.

The canvas is held in place by a side anti-wind brush, ensuring its durability under repeated use. During renovation, a compensation profile can be added to accommodate irregular surfaces.

As part of a development project, a project manager may recommend this type of mosquito net to preserve access to the outside while securing the interior against pests.

Customization and integration into joinery

Both ranges offer several standard finishes (white, ivory, brown, anthracite grey, black) as well as custom colours from the RAL colour chart.

This adaptability allows for consistent integration with:

• the existing joinery,
• the facades,
• local architectural constraints.

In a project-based approach, this personalization facilitates aesthetic acceptance by occupants and specifiers, particularly in the residential sector.

The rise of retractable mosquito nets illustrates a shift in home equipment towards passive solutions that combine thermal comfort and ease of use. Their effectiveness, however, depends on careful installation and adaptation to the specific characteristics of each opening.