Building Envelope Technology & Research

Building Envelope Technology & Research (BET&R) is a professional, full service building envelope consulting firm, dedicated to bringing our knowledge and expertise in building envelope science to the practical world of commercial, industrial, and residential construction. BET&R was founded in 1997 by Principal Consultant and Technical Director Jim Carlson in response to a growing need for a quality and detail-oriented full service building envelope consulting firm capable of providing its clients with practical, real-world solutions drawn from advanced knowledge in the fields of roofing, waterproofing, and cladding science.