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Fiberglass vs. Wood Windows

5/2/2016 3:08:53 PM

What do you know about different types of window materials? Fiberglass and wood are two popular varieties because of the great benefits they each provide. Wood has been around since people starting building houses while fiberglass is a relative newcomer to the window industry. Regardless of their history, fiberglass and wood are major competitors today. Take a look at fiberglass vs. wood windows so you can compare their most important features.

Energy Efficiency

Fiberglass and wood are both naturally insulating materials, making them good choices for window frames. Paired with multi-pane windows featuring a low-e coating and warm edge spacers, fiberglass and wood are comparably efficient. Just remember the importance of professional installation to ensure the most energy efficient windows possible.

Winner: Tie


Fiberglass is inorganic, which means it requires very little maintenance to withstand exposure to the elements. After years of giving them hardly any attention, your fiberglass windows will maintain their like-new appearance. Wood can last for decades, but you must be willing to properly care for them. Regular scraping, sanding and repainting are needed to prevent wood windows from rotting and splitting.

Another option is to install wood-clad windows. This allows you to enjoy the warmth of real wood in your home while a more durable cladding material such as fiberglass, vinyl or aluminum faces the elements on the exterior of your home. This option provides the best of both worlds.

Winner: Fiberglass (tie between fiberglass and wood clad)


Nothing compares to the warmth and beauty of real wood windows. Their appearance is sought after by many homeowners who want to add an elegant feel to their home. It’s also easy to change the color simply by sanding and repainting or staining the window frame.

Fiberglass fails to offer the same elegance as wood, and you often can’t change the color by repainting the windows without voiding the warranty. Choosing wood-clad vinyl windows offer greater interior color flexibility and adds warmth to your home.

Winner: Wood

Cost and Value

As a natural, highly sought-after material, wood windows are among the most expensive options. The investment could be worth it though because wood windows increase the value of your home. When it comes to durability, keep in mind that wood can expand and warp in changing temperatures, seasons and humidity levels unless you employ the proper maintenance.

Fiberglass windows tend to be more affordable than wood upfront. As long as you choose a quality manufacturer and installer, fiberglass windows can also increase the value of your home. Plus, fiberglass is an incredibly durable material. It retains its shape after years of exposure to hot, cold, dry and wet conditions with little attention on your part.

Winner: Tie

In the end, whether you choose fiberglass or wood replacement windows, you’ll appreciate the improved appearance, efficiency and value your new windows add to your home. For more help making the best choice, please contact Weather Shield directly or find a Weather Shield dealer near you today.

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