It has been called ‘the lumber of the future’ and ‘the ultimate window frame’ for good reason: no other framing material can match its performance. Some of these benefits are listed below:

Fiberglass is extremely strong and stiff – eight to ten times stronger than vinyl. It can accommodate higher wind loads with less deflection than is common with vinyl systems, permitting larger windows. It can withstand extreme temperatures (-40°F through 350°F, and higher) without becoming brittle or soft. Fiberglass frames rarely need structural reinforcement to meet strength and deflection performance criteria.

Fiberglass is a dimensionally stable, thermoset material. This means that, once its thermoset resin has cured, it will not creep. Thermoplastics such as vinyl will creep and deform over time.

Fiberglass is inorganic and chemically inert. This means it is not susceptible to rot or decay, mildew, insect damage, or UV degradation. It will not corrode or fade like other window materials.

Fiberglass is an ideal paint substrate, with virtually unlimited potential colors. It is durable and easy to retouch or refinish, whether by hand to repair minor damage, or as part of a larger renewals project.

Fiberglass frames also provide superior thermal performance, high condensation resistance and low thermal movement. Durable and efficient, they offer economic as well as environmental benefits - find out what fiberglass windows and doors can offer your next project!