How Long Does Fiberglass Decking Last?


Fiberglass decking is a popular material choice for outdoor decking, boat decks, and roofing applications. It is a durable and low-maintenance alternative to traditional wood and composite decking materials. The main advantage of fiberglass decking is that it is highly resistant to moisture, rot, and mold, which makes it an ideal choice for harsh marine environments and coastal areas. But, just like any other material, fiberglass decking has a limited lifespan and will eventually need to be replaced. So, how long does fiberglass decking last?

How Long Does Fiberglass Decking Last?

Fiberglass decks have a life expectancy of 20 to 25 years, making them one of the most durable flooring materials on the market.

The Factors that Impact the Lifespan of Fiberglass Decking

The lifespan of fiberglass decking depends on several factors, including the quality of the materials used, the type of resin used, the thickness of the decking, and the level of maintenance. High-quality fiberglass decking is made from top-quality resins, reinforced with strong and durable materials, and finished with a protective coating. This type of decking is more resistant to fading, cracking, and warping than lower-quality alternatives. The thickness of the decking also plays a role in its lifespan, with thicker decking being more durable and less likely to warp or crack over time.

The type of resin used in fiberglass decking also affects its lifespan. The two main types of resins used in fiberglass decking are polyester and vinyl ester. Polyester resins are less expensive and more commonly used, but they are also less durable than vinyl ester resins. Vinylester resins are more resistant to UV light and chemicals, making them a better choice for outdoor structures. They also have a longer lifespan and are less likely to crack or warp over time.

Another factor that affects the lifespan of fiberglass decking is the level of maintenance it receives. Regular cleaning and maintenance will help to keep your deck looking like new for many years. Dirt and debris can accumulate on the surface of the decking, causing it to become dull and discolored. To prevent this, it’s important to clean your deck regularly, using mild detergent and water. If your deck is exposed to harsh weather conditions, you should also consider applying a protective coating to help preserve its appearance.

Fiberglass decking is also more resistant to moisture than other materials, such as wood or composite decking. This is because fiberglass decking is a non-porous material that does not absorb moisture. Moisture is one of the main causes of decay in outdoor structures, so the fact that fiberglass decking is resistant to moisture is a big advantage.

Unicomposite’s Fiberglass Decking System

We supply Various fiberglass decking and planking such as pultruded hollow decking, pultruded open decking, and pultruded multi-leg panels which are well performed. All Unicomposite’s fiberglass deckings and panels are widely used in flooring, seawall, walkways, cooling tower, vehicles, platforms, etc. So, if you’re looking for a durable and low-maintenance decking option, fiberglass decking is definitely worth considering.

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