Lorillard equips the H1 and H2 towers and the SOHO of the new Chapelle International district

With a total area of ​​seven hectares, Chapelle International is built on the former railway wasteland of the Chapelle station and is part of the major urban renewal project “Paris Nord-Est”.

The creation of this new mixed and multifunctional district of 150.000 m² has been divided into 10 lots. Lot H, designed by AUC town planners and developed by Espaces Ferroviaires, under the project management of Vinci Immobilier, was entrusted to the project management of a team made up of two architectural firms: l Armand Nouvet Architecture agency and DATA Architects agency.

Named “My 18th”, this lot concerns the H1 and H2 towers, the SOHO (Small Office Home Office) and its patio, for which the Lorillard Group has designed wood joinery that fully contributes to obtaining the ambitious environmental performance of this work.

Requalification of a wasteland into virtuous buildings

"My 18th" brings together 129 apartments and 15 SOHOs. A common base of 2.000 m² hosts a garden island, the SOHO and the large central patio (which gives access to shops and all housing) around which are arranged the two towers H1 (37 meters) and H2 (50 meters) .

« We have thought up a project that respects the environment and is geared towards the new uses that the town planners of the AUC, the urban developer Espaces Ferroviaires and the city of Paris, wanted to give through the common entertainment spaces planned for the residents. and SOHO activities » explains Arnaud LEDU Architect for the Armand Nouvet agency.

The SOHO and the H1 tower (37m) are made of a mixed wood and concrete structure, the architectural intention was to combine these two materials in a common envelope, thus ensuring continuity between the buildings.

« The H2 tower is the tallest, its concrete structure is adapted to its height of 50 meters; the H1 tower is 37 meters high, its structure is made up of a mixed wood-concrete frame. The minerality of the sandblasted concrete of the prefabricated parts that envelop the entire structure offers real continuity between the different parts (SOHO base and towers) that make up the building » indicates Arnaud LEDU.

Indeed, concrete is an expressive material and it is possible to model the texture and the finish, it has been particularly worked here to match perfectly with the exposed wooden elements as well as with the rest of the district.

« The environmental performance achieved was ambitious, in particular for the higher level NF Habitat HQE certification and the 3EC1 label for which the volume of wood integrated into the structure helped to obtain it by reducing the carbon footprint. » explains Arnaud LEDU.

At SOHO, exceptional woodwork for optimal solar gain

The structure is therefore intended to be very energy efficient with housing and offices having very large glazed surfaces to capture a maximum of solar energy and light.

Lorillard notably supplied wooden frames (Rennes range) in Larch, with non-standard dimensions for the SOHO windows on the patio side, which are 3,89 meters high by 1,42 meters wide, divided into 2 leaves. Their DKD design not only ensures the aesthetics of the joinery (no straddling of the opening profile, no sawtooth phenomenon) but also great solidity.

A specific development was carried out for these 64 joineries because the ground floor of the building is sloping with a drop of 40 cm.

It is logical, but not without technical difficulty, that a difference in level was applied in the design of all the frames, the smallest of which is 3 meters high.

Their installation was carried out in the manner of a curtain wall. The frames – by frame of 2 leaves – were fixed between structural posts placed at the same distance and reinforced by thorns fixed to the posts in order to frame the joinery and guarantee exceptional rigidity to the frames.

On the glazing side, at the level of the SOHO patio, on the ground floor, for the shops and offices that will be installed there, SP 10 burglar-proof glazing combined with a reflective tin has been implemented to guarantee privacy. places and also control solar gain.

From R+2 TO R+16, 898 woodwork

The apartments of the two towers start on the ground floor and extend over 2 floors for the H11 tower and 1 floors for the H16 tower. There are therefore 2 PEFC wood joinery units from the LENA 348 range, in an essence identical to the Rennes frames, which have been designed to equip all the housing units of the H68 tower and 1 joinery units for the H550 tower.
On R+2, all joinery is accessible via the roof terrace and has therefore been fitted with burglar-proof security glazing.

For all the floors of the towers, the LENA joinery is equipped with a double seal on the openings as well as on the frames, giving them high acoustic and thermal performance.

However, a higher acoustic value was required for the windows of the facades of the H1 tower overlooking the railway tracks. To do this, the wooden joinery of the H1 tower is equipped with 40 dB soundproof glazing to generate an acoustic attenuation of 38 to 40 dB.

This notion of acoustics on the H1 tower also led to the installation of SHF ventilation (Top Window Silencer) since the air inlet could not be positioned in the opening.

The SHF was installed in the upper part of the carpentry, before the installation of the lining. A mortise incision on the vertical tap allowed the installation of the SHF box in the insulation. It is associated with a humidity sensitive air inlet installed vertically inside the frame.

Lorillard has also provided the joinery of the two towers with solar protection with zip blinds in blackout fabrics. Placed on the exterior frame of the carpentry, each blind is electrically operated with guide rails for total concealment. The Web* is notably equipped with a bituminous layer for maximum opacity.
For the SOHO and the R+1, canvas blinds with solar treatment were implemented and installed indoors.

*from GRESSIER
** from MERMET

In the end, 1048 joineries were designed and implemented by the Lorillard Group – as well as technical doors – on this exceptional site.

The new market is not the Lorillard Group's core business, but the brand's know-how in wood joinery, its production capacity and its ability to develop specific responses for dimensional and technical constraints make it a partner of choice in the execution of architectural projects.

Thus, the Lorillard Group responds more and more frequently to this type of new structure.

This long-term work, over more than a year, despite the difficulty of obtaining wood, was carried out on time and offers the future inhabitants of towers H1 and H2 a serene, pleasant living environment with large joinery offering them generous viewpoints, well above the railway landscape, on the Sacré-Coeur and Greater Paris.