Chrono One Undercover by Soprofen: a virtually universal bay window unit!

By André Sudrie - PR Agency Published on Monday, June 30, 2025 at 16:45

Photo credits : SOPROFEN

Summary for decision-makers

SOPROFEN's Chrono One Undercover is an innovative solution for single-family homes and multi-family housing. Thanks to its access hatch on the underside of the box, the apron is easily accessible, making it easier to maintain. This product is compatible with most construction methods on the market, whether for exterior or interior thermal insulation, or even renovations. Its design allows for proper integration into various construction systems, while meeting the necessary thickness constraints.

Made from 60% recycled PVC, the Chrono One Undercover offers remarkable performance in thermal insulation, soundproofing, and air permeability. In addition to its ease of installation, this solution features innovative blackout channels and a wide range of colors. It adapts to a variety of dimensions, ensuring universal aesthetics and optimal functionality for all types of construction projects.

Frequently Asked Questions for Decision Makers

What are the main benefits of the Chrono One Undercover?
It offers excellent thermal and acoustic insulation and high air permeability, while being made from recycled PVC.

How does the Chrono One Undercover adapt to different construction methods?
It is designed to integrate easily into various systems, whether for exterior, interior, or renovation insulation.

How long does it take to install the Chrono One Undercover?
Implementation is quick, taking less than 8 minutes, making it an efficient option for construction sites.

A central element of bay equipment, the closure plays a key role in the thermal performance and comfort of buildings. To address these challenges, Soprofen offers a complete range of solutions that comply with current regulations. Among them: the Chrono One Undercover box, a discreet and high-performance bay unit, completely invisible.

Chrono One Undercover by SOPROFEN: a universal aesthetic solution for all construction methods

Ideal for individual houses as well as multi-story collective housing thanks to its access hatch on the underside of the box which makes the apron accessible from the inside if necessary, the Chrono One Undercover from SOPROFEN also has the advantage of being compatible with the majority of construction methods on the market in:

external thermal insulation both in new builds and renovations, with appropriate treatment of the specific points of the carpentry,
interior insulation in the case of new or existing constructions,
in renovation by inserting it, for example, into a wooden formwork,
timber frame, a construction method in full development for its environmental qualities. Nevertheless, it involves the constraint of the thickness for the roller shutters which, again, the Chrono One Undercover meets,
double wall consisting of an interior cinder block wall and an exterior brick cladding separated by insulation. This traditional solution in the North of France requires specific implementation of the joinery and the shutter.

Made from 60% recycled PVC, remember that the Chrono One Undercover from SOPROFEN has, thanks to its patented design, exceptional performance in terms of:

thermal insulation (Uc up to 0,942 W/m2K* – Delta R 0,27 W/m2.K),
acoustic attenuation (Dne Atr 50dB* as standard),
air permeability (class 3* certification).

Added to this are the many already recognized advantages of the Chrono One bay unit, such as ease of installation in less than 8 minutes flat, slides equipped with the Goodnight innovation for optimal concealment, a wide range of colors and the possibility of producing it in large dimensions thanks to the use of storm hooks (up to 3 meters or 3,50 meters in a single panel, depending on the 37 or 50 mm ALU slats), regardless of the size of the box (200 or 230 mm).

So many elements that make the Chrono One Undercover from SOPROFEN an almost universal aesthetic solution!

*laboratory tests approved by COFRAC in progress

More information : Soprofen Press Kit: Chrono One Undercover