Pella Fiberglass vs. Andersen Fibrex
It’s a One-Sided Fight – Spoiler Alert: Pella Wins
See how our exclusive fiberglass material outperforms Andersen Fibrex plastic/wood composite to hold up better for the strength and durability your home or project demands.

Compare the Superior Strength of Pella Fiberglass vs. Andersen Fibrex
stronger than Fibrex in a bend test.33
As much as the competition in a bend test, which measures the flexural strength of a material by applying force via a single, concentrated load point in the middle.
more impact resistant than Fibrex.27
As much as the competition in a tensile strength test, which measures the stress a material can withstand while being stretched before breaking.
the tensile strength of Fibrex.34
As much as the competition in an impact resistance test measuring a materials ability to withstand a sudden, high force.
Pella® Impervia® – 100% Fiberglass. 0% Wood Fiber.
Take a look behind the paint and see what materials make up Pella’s proprietary fiberglass and Andersen Fibrex.

Pella Impervia, made of our proprietary fiberglass
Our fiberglass starts with our structural mat which places rovings in a specific, intricate order to meet Pella’s high strength standards. The mat and additional rovings are pulled through a machine, injected with polymer resin and heated to create an entirely new, thermoset material. Our fiberglass material is the strongest available for windows and patio doors.9

Andersen Fibrex, made of plastic, wood fiber and glue
Contrary to popular belief, Andersen Fibrex is not fiberglass, but is instead made of 40% wood fibers and 60% plastic that is fused together with glue to create the window or door frame. Without strong fiberglass rovings and mats, this thermoplastic material used on Andersen 100 Series and Renewal by Andersen Fibrex products is susceptible to breaking and shattering.
Why Us?
Deluxe Windows NJ is a leading provider of high-quality windows and doors for residential and commercial properties in New Jersey. With years of experience in the industry, we take pride in offering top-notch products and exceptional installation and replacement services to our valued customers.
As a locally owned and operated company, we take great pride in delivering superior craftsmanship, personalized service, and unmatched customer satisfaction. Whether you’re looking to upgrade the energy efficiency, enhance the aesthetics, or improve the functionality of your windows or doors, our experienced team is ready to exceed your expectations.
We service all of New Jersey, as well as the NYC Area with exceptional windows backed by certified Installers of more than 20 years of quality service and products. Choosing Deluxe Windows NJ means you’re investing in your home with comfort, style, and energy efficiency at the forefront.