5.500 m² of facades, asbestos, BIM: JJ Rousseau Residence in Le Mans, a major project for Myral

The scaffolding was removed at the end of winter and the satisfaction is general. Because with its 83 collective dwellings and 26 individual houses, the Résidence Jean Jacques Rousseau represents a real district in the southern part of the Sarthe prefecture. A residential complex that has not only benefited from quality thermal renovation, but also benefited from a real facelift.

Myral proposed "from the start" of the project

In fact, the specifications of the social landlord Valloire Habitat were clear: to carry out work to improve the energy performance of the different buildings in order to improve the comfort of the inhabitants and reduce the costs linked to heating consumption. A necessarily ambitious project due to the volume to be treated, that is to say 2 buildings in R + 3 and twenty houses for a total of 5 m² of facades. But also by its constraints, in particular the presence of asbestos. For the insulation, the prime contractor, the architectural firm C500V, quickly opted for the Myral solution. David Le Naourès, site manager at the agency: “We have known this product for a long time, we had already experienced it. It was therefore our choice from the start to offer Myral because it adapts very well to the renovation of this type of large complex. "

"30% time saved in installation compared to a traditional metal cladding!" "

First by its thermal performance. “The idea was to lower the energy label of these dwellings which date from the 80s. We had a DPE of D for individual dwellings and a DPE of C for collective dwellings. Thanks to the use of the Myral solution, the residential complex has switched to a DPE between B and C depending on the orientation of the dwellings. For David Le Naourès, “in terms of thermal performance, we are beyond what we hoped for. Today, the tenants have collective heating and the lessor notes that since the works, they have not stopped lowering it! "

Another argument is the rapid implementation. The ease of installation of the panels means that construction sites can be carried out on occupied sites in extremely reasonable times. An asset that seduced ISORE BATIMENT. "The installation of Myral clothing was very quick to implement on this operation and therefore the discomfort for the tenants much less important," explains the site manager of the envelope processing company. And everything went very well. The same observation from the architectural firm. “The advantage was obviously the ease and speed of installation with very clean work. "The construction manager ISORE BATIMENT, to add:" On this operation, we noted a time saving of 30% compared to the installation of a traditional metal cladding due, in particular, to the absence of framework to put. "

Impressed by the Myral solution for treating asbestos facades

If the ISORE BATIMENT company had already implemented Myral panels, the novelty came from the support having the specificity of being asbestos. “On the site, our workers used this bell system for the first time, which has proven to be very effective. »It is indeed a patented suction bell which adapts to the mode of fitting in cladding / cladding of panels M32 and M62. This technique allows drilling into the support containing asbestos without dispersing harmful dust. David Le Naourès admits to having been impressed by this method. “Everything was fast and very well managed. We often come across asbestos facades on our construction sites. This solution is a good alternative to asbestos removal, especially if the walls are slightly deteriorated. In this case, recovery is a good solution. "

The other specificity of the site: BIM management

If the site was so efficient, it is also thanks to its management in BIM (Building Information Modeling or Building Data Modeling) by the company ISORE BATIMENT. “We have implemented a process that allows us to do BIM in rehabilitation. We are working with a drone which, with photogrammetry, will make a survey of the existing. Then we move on to building modeling, ”explains Franck Hardy, business engineer at ISORE BATIMENT. It is on this modeled basis that technicians can draw insulations, cladding, frameworks. “This allows you to immediately see the faults of the assembly, not to discover them at the time of the site and to order custom-made siding without any risk of having to cross-check them on the site. With an accurate survey, the ISORE BATIMENT teams have fewer cuts. “We were able to give Myral the exact quantity of panels desired. »An exemplary project management, during which all the partners went hand in hand, in order to offer enhanced comfort to an entire neighborhood!