Marysusan Couturier

R&D Director, Post-Applied/Air Barriers/Residential/Fireproofing

Marysusan's Career

Marysusan Couturier began her career at GCP more than 30 years ago as a research chemist. She has since risen to become an R&D director, managing a team of scientists working to produce the next generation of products that support sustainable construction.

A prolific inventor, Marysusan is responsible for numerous patents, including self-adhered air barrier membranes that save energy and improve building durability. Her polymer skills have served her well throughout her career as she continues to investigate the building science behind heat and moisture transport through the building envelope. She has been a key contributor to GCP’s air barrier portfolio of products. These materials can play a key role in improving building durability and reducing greenhouse gases by:

  • Controlling the transfer of air into and out of the structure to minimize heat loss
  • Preventing moisture from entering or exiting the structure and causing decay

With decades of experience working in research and development of polymers, Marysusan’s work has included structural adhesives for the automotive industry, sealants for the food packaging industry, and air barriers for the construction industry. She received her B.A. in chemistry from Regis College and earned her Master’s degree in plastics engineering at the University of Massachusetts.

As a member of both the Research and Technical Committees of the Air Barrier Association of America, she is deeply involved in research into methods for improving air barrier performance as well as the development of standards, specifications, monitoring codes, and proposed test methods. She is also an active member of ASTM. As a recognized expert in polymer science, Marysusan is a regular contributor to numerous conferences and trade publications.