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Fiberglass & Wood Windows

Advantages of Fiberglass Frames

Exceptionally strong and low-maintenance fiberglass window frames are ideal for any style and climate.

  • Traditional wood profile
  • Extremely strong—can hold large expanses of glass
  • Low maintenance
  • Paintable
A dining room table with chairs and a plant in the middle.

Fiberglass frames are essentially composed of glass fibers and resin, materials that expand and contract very little with temperature changes in the weather. Until recently, the complex profiles required for window designs have been impossible to attain with fiberglass. Innovation has made it possible to design a fiberglass frame and fiberglass windows and patio doors are becoming more popular among homeowners for its beauty and long-lasting durability.

Fiberglass windows resist swelling, rotting and warping. The frame expands and contracts at approximately the same rate as the insulated glass it holds for improved energy efficiency and strength.

While Pella fiberglass frames do not require repainting for upkeep, the material is able to be repainted if you prefer to change colors.

Pella’s fiberglass is produced using a process called pultrusion. Glass weavings and mats are pulled at tremendous forces through a resin bath and a series of dies. These materials combine and catalyze to provide tensile and torsion strength.

Every Pella fiberglass frame is tested for color uniformity, gloss, film thickness, and chemical resistance for quality and long-lasting performance.

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Fiberglass & Wood Window Catalogs

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