Defining Composite Decking

The Cambridge English Dictionary defines composite as “made of various parts or substances.” To produce composite decking, manufacturers combine natural and synthetic ingredients. Most composite deck boards are a mixture of wood fiber, virgin or recycled plastic, and chemical additives.

Composite decking usually falls into two categories: uncapped wood composite and capped wood composite. Uncapped wood composite is the most susceptible to mold and mildew due to its exposed wood ingredients. Capped wood composite boards offer increased protection as they are sealed in a plastic shell.

Problems with Composite Decking

Builders and homeowners share common concerns about composite decking. Composite deck boards contain porous wood fibers that absorb moisture, fade, stain, swell and feed bacteria. Despite the synthetic ingredients and chemical additives, composite decking remains susceptible to the factors that inevitably deteriorate wood.

If you research the problems associated with composite decking, you will find a list of recurring issue.: persistent mold, delamination, and sunlight issues. Even in a plastic shell, capped wood composite risks molding with inadequate airflow or regular water exposure. Composite boards split, delaminate, and peel due to thermal expansion and contraction. Composite generally weighs more than lumber yet provides less strength, causing boards to sag and bend. Composite decks tend to become slippery when wet, stained and faded over time, and unbearably hot on sunny days.

 

Our Trex Composite Decking combines its signature style and strength to achieve high-performance, long-lasting, and easy-to-maintain products. They offer a 25 Limited Residential Fade and Stain Warranty and have low-maintenance and innovative options for railings, lighting, steel deck framing, and more.

We also offer amazing tropical hardwood, more composite alternatives for  exterior projects.