Conclusion of the Schöck video saga: the homogeneity of the building envelope under the spotlight

As for season 4, it explains, without concession, the flaws of RT 2012 and the insufficient ambitions of the current thermal regulations. And still in synopsis: the desire to instil a collective awareness for a choice of economical, healthy and sustainable housing so that new constructions are not the renovations of tomorrow.

After two seasons which have known how to meet their audience (individuals wishing to acquire a home, as well as consumer associations, real estate consulting organizations, federations or even institutions), Schöck signs the end of its video saga with 9 episodes .

The 4 opuses of season 3 depict the pathologies of a poorly insulated building, including condensation and mold responsible in particular for many respiratory diseases (bronchitis, rhinitis, asthma, allergies). Thus, with reference to the White Paper2 produced by the Working Group on the Quality of the Envelope (GTQE) of the Fibres-Energy Cluster, Schöck recalls that according to the OQAI (Observatory of indoor air quality) 37% of houses have mold and that the social cost of indoor air pollution amounts to 19 billion euros per year! Among the effective remedies: linear thermal bridge breakers between the slab and the facade or the slab and the balcony in ITI, as well as the treatment of thermal bridges in balconies in ITE.

Finally, the 4 episodes of season 4, to which an epilogue is added, give the main roles to RT2012 and RE2020, but unlike the heroes that these regulations would like to embody.

Indeed, emphasizing France's predilection for ITI and not ITE, yet the only guarantee of a perfectly homogeneous envelope, Schöck refers to French regulations which stipulate that only part of the thermal bridges must be treated to be compliant (approximately 50%). For a collective housing building, for example, it is therefore sufficient to treat an average of 50% of the thermal bridges with contact breakers on each intermediate floor, or to treat the thermal bridges of the first floors, but not of the last floors of the building (or vice versa). versa). Only the average counts!

Thus, despite its compliance with the RT2012 or now with the RE2020, a new construction may contain significant energy leaks with regard to thermal bridges remaining between the slab and the facade or the slab and the balcony. Disappointing observation at a time when it would in fact be necessary to privilege a complete treatment of thermal bridges in ITI or ITE. Especially since if the construction costs represent 28%, those of financing 15% and land charges 11%, maintenance and use alone burden almost half of the budget (46%). Hence the importance of placing further emphasis on the quality of the envelope to reduce the operating cost of the building borne by the future occupants of the accommodation or the asset manager.

By signing this series of 16 entertaining and didactic videos, Schöck has therefore made as many people as possible aware of the importance of a homogeneous building envelope for saving energy, increasing the purchasing power of households, guaranteeing comfort of the occupants as well as enhancing its real estate assets.

Discover all the seasons on the YouTube channel Schöck France.