BIFF SA is an engineering firm specializing in the planning, consulting and monitoring of facades and building envelopes. The core activities include: facade planning and engineering, building physics and energy consulting, construction management and supervision, expert opinions and reports for facades and building envelopes, consulting and planning for energy-efficient and sustainable buildings, thermography and energy audits, acoustic and soundproofing consulting, and air tightness and BlowerDoor tests. The company offers its services to architects, builders and other stakeholders in the construction industry and has offices in Lausanne, Geneva and Zurich.