1. 14-05-01 - ENERBUILD Steering CommitteBOURDEAU Luc (CSTB) Réglementation Thermique 2000 2000 “Thermal Regulation” The New French RT 2000

2. 14-05-01 - ENERBUILD Steering CommitteBOURDEAU Luc (CSTB) Introduction June2, 2001 -20% to - 40%, with summer comfort Performance-based approach Three requirements –Energy consumption < Reference –Summer temperature –Minimal performance of some components

3. 14-05-01 - ENERBUILD Steering CommitteBOURDEAU Luc (CSTB) Challenges Environmental –1/4 of gas emissions –More and more severe every 5 years –To optimise products for retrofitting Social: cost mastering Economics : European standards

4. 14-05-01 - ENERBUILD Steering CommitteBOURDEAU Luc (CSTB) Tools Calculation softwares: ThC, ThE –“free” softwares –air conditioning: models to come by 2 years Technical solutions

5. 14-05-01 - ENERBUILD Steering CommitteBOURDEAU Luc (CSTB) Expected Changes Flexibility and optimistaion, but “garde- fous” such as minimum insulation Tertiary: tremoundous evolutions of technical solutions Thermal bridges: technical solutions to be proposed Air tightness: objective: strict application of execution rules

6. 14-05-01 - ENERBUILD Steering CommitteBOURDEAU Luc (CSTB) Low emissivity glazings … argon Energy sources flexibility: flue tubes in electric houses Roof and wall higher insulation Hygro-variable ventilation in electric houses No “permanent flame” in gas boilers Lower thermal bridges in collective buildings Expected Changes