The Best Fiberglass Windows for Your Project
We put our proprietary fiberglass to the test against the competition. See how Pella's exclusive fiberglass dominates the competition.
Our Fiberglass is Stronger than the Competition.9
as much as the competition in a bend test and tensile strength test.
Pella’s proprietary fiberglass material has displayed superior strength over wood, vinyl, aluminum, wood/plastic composites, and other fiberglass materials used by leading national brands in tensile and 3-point bend tests performed in accordance with ASTM D638 and D790 testing standards.
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Fiberglass is STRONG. We Made it the STRONGEST Material for Windows.
We routinely test beyond requirements to ensure quality windows and doors that are built to last a lifetime of everyday use. But we wanted to show exactly how strong our fiberglass is to help you find the best fiberglass windows and patio doors for your project. With relentless strength and long-lasting durability, Pella's proprietary fiberglass helps ensure less maintenance with fewer callbacks.
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Pella Fiberglass Lifts a Heavy-Duty Truck
We used bolts, shackles and adapters to attach four Pella fiberglass window lineals to the tow hooks and hitch of a 6,600-pound heavy-duty pick-up truck. We then attached the top of each lineal to a forklift and suspended the ¾-ton truck into the air.
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Pella Fiberglass Resists 1,000 lbs. of Concrete Blocks
To test the strength of our exclusive fiberglass material, we constructed a metal stand and steel platform that would hold a suspended load of concrete blocks weighing 1,000 pounds from a single Pella fiberglass sliding patio door jamb lineal.
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Pella Fiberglass Withstands Dents from a Bowling Ball
To demonstrate how well our proprietary fiberglass material holds up to impact, we created a test where we dropped a 10-pound bowling ball onto a section of a Pella fiberglass sliding patio door jamb lineal from seven feet in the air. Watch the video to see it in action.
Designed to stand up to everyday wear and tear, Pella Impervia products offer an on-trend color palette, including black, and feature our latest innovation, the Easy Slide Operator window hardware, winner of Best in Show at the 2021 International Builders Show.
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