My Renovation Support Specialist (MAR) is only mandatory for major energy renovations financed by MaPrimeRénov'. When is MAR required? Major energy renovation – several combined works aimed at a significant energy improvement: - Improvement of at least 2 energy performance certificate (EPC) ratings. - At least 2 insulation measures (roof, walls, floors, windows). - Application for the MaPrimeRénov' Supported Pathway.
