Skip to Content

Weather Resistance

At Pella, we’re determined to build new and replacement windows and patio doors that perform beyond expectations. Explore how our products are built to perform in nearly any weather condition, like rain, snow, wind and hail.

Durable Window Materials

Natural Beauty of Wood

Pella’s exclusive EnduraGuard® wood protection is applied after the pieces have been cut and milled, but prior to final assembly. It provides advanced protection against the effects of moisture, decay, stains from mold and mildew – as well as termite damage. Wood-clad windows and patio doors are protected on the exterior with an EnduraClad aluminum cladding, which resists fading and will look great for years.

Strong & Durable Fiberglass

Pella® Impervia® products are made from our proprietary fiberglass material — the strongest material available for windows and patio doors, engineered for lasting durability.16 Our fiberglass material won't expand, contract or become brittle when exposed to environmental temperature swings, making it a great solution for any climate.