Fiberglass windows & doors were developed as the demand for a strong, durable and low maintenance frame type that would be more sustainable and environmentally friendly than vinyl, wood or aluminum frames. The global green building movement is spurring demand for sustainable products with low life cycle costs—and more mainstream window and door manufacturers are introducing fiberglass profiles to meet the demands of most architects and designers.

Learning Objectives

  • Discuss the history of fiberglass for fenestration and understand how fiberglass allows for a strong, durable and low maintenance frame type.
  • Explain the fiberglass pultrusion and manufacturing process.
  • Discuss the definition of a window’s performance grade (PG) and design pressure (DP) rating and learn how they are related.
  • Observe how an AAMA test performed for DP ratings.