Insulated concrete form walls: four technological leaps supported by the CSTB
2016: The industrial companies GBE and Lafarge received a Technical Approval for a cast-in-situ wall with integrated insulation and concrete skin. This system has just taken its fourth technological leap, 20 years after the emergence of the first solution of its kind on the market. The CSTB has supported the advancement of this innovation since its beginnings. Working alongside the stakeholders through the assessment procedure, the CSTB helps ensure the safety and stability of their system.
Laboratory measurements and on-site measurements: getting closer
Thermal and acoustic insulation made of recycled paper, or cellulose wadding, is used in loose fill or in panels in buildings. A study initiated by a working group of industrial manufacturers with the CSTB explored to what extent the thickness of this loose fill insulation is subject to settling, over time. This is a major challenge in the context of energy transition. The goal is to assess this component's actual contribution to the energy performance of the building envelope.
Innovative green roof for Lascaux IV
The Centre International de l’Art Pariétal Lascaux IV (International Centre for Cave Art), which exhibits a reproduction of a prehistoric cave with paintings, was inaugurated in December 2016. Its green roof blends into the wooded landscape of the Dordogne region. The roof’s steep slope required an inventive design: 700 bollards hold the insulation material and vegetation in place over a roof of 7000 m2. Designed and installed by the company SNEI, which specializes in weatherproofing, this system received a Technical Experimentation Assessment (ATEx) from the CSTB.
How does the ETFE cushion canopy over Rosa Parks commuter rail station stand up to heavy rain?
The roofing of the new Rosa Parks commuter rail station on the RER E line in Paris uses ETFE-foil cushions, a light, translucent material. As part of an ATEx conducted by the CSTB, the Spanish company IASO, which specializes in fabric architecture, strengthened the soundness of this innovative system. It installed a metal cable net on the underside, which reduces the appearance of pockets of waters and ensures the stability of the supporting structure.
The offering of the CSTB: ATEx and regulatory flexibility
On June 21, the CSTB organized a day-long event to guide stakeholders in innovation. A round table discussion focused on innovation in connection with the regulatory flexibility recently proposed for the construction industry. In order to support stakeholders, the CSTB is expanding the scope of the Technical Experimentation Assessment (ATEx) to new solutions that have been developed, based on the regulatory flexibility that has made it possible to use means other than those described in the regulations.
3rd Ifop-CSTB innovation survey: environmental performance, a driver for innovation by construction VSEs and SMEs
The 3rd survey conducted by the Ifop for the CSTB among construction companies of less than 500 employees (VSE/SME) confirms the importance of innovation in the view of company directors, especially innovations that improve energy performance and reduce the environmental impact of materials.
The CSTB Info Day for VSEs, SMEs and construction professionals
The CSTB organizes an information day about its innovation support services to help companies prepare for increasingly open markets. The Info Day brings together construction professionals with partners of the Réseau National d’Accompagnement (National Support Network) and CSTB experts.
Stadiums hosting the 2016 UEFA Euro: CSTB supports design and renovation
For more than 20 years, the CSTB has worked alongside project designers, contractors and owners, developing specific expertise and engineering for stadiums to ensure these architectural structures fulfill their mission by offering spectators maximal comfort and safety.
Speed meetings with innovative VSEs and SMEs
“I have a new product, what should I do to have it certified?” Although the same question is asked by all construction professionals, it reflects many different needs. In particular, it was heard frequently during discussions between innovative VSEs and SMEs and experts during the speed meetings of the CSTB and its partners on November 5 at the BATIMAT trade show.