Ultra Series Fiberglass Windows


Ultra™ Series windows have the ability to withstand almost any environment. The frame expands and contracts at approximately the same rate as the insulated glass it holds, putting less stress on the seals, for a clear, fog-free view.

Interior of the Grand Idyllwild Lodge in California.
Beautiful Ultra Series fiberglass windows were used at the Grand Idyllwild Lodge in California.
Strong and beautiful, fiberglass windows.

Get a Daily Dose of Design

Sign up for the Dwell Daily Newsletter and never miss our new features, photos, home tours, stories, and more.