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Cellular PVC Trim Basics

Cellular PVC Trim Basics
Cellular PVC Trim Basics Manufacturer Spotlight: BOTO Cellular PVC Trim Building Products BOTO Cellular PVC Trim Building Products is a manufacturer of cellular PVC products. All downloads below are courtesy of BOTO Building Products. Many material types have emerged over the past decade or so...
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Cellular PVC Trim Basics

Manufacturer Spotlight: BOTO Cellular PVC Trim Building Products

Cellular PVC Trim

BOTO Cellular PVC Trim Building Products is a manufacturer of cellular PVC products. All downloads below are courtesy of BOTO Building Products.

Many material types have emerged over the past decade or so as a replacement for traditional exterior wood trim. Each has its own advantages and disadvantages, most staking claim to being durable, low maintenance, and attractive in appearance. One in particular has garnered my attention: cellular PVC trim. Manufacturers offer product warranties that range from 25 years to lifetime limited warranties, which surpass most other exterior trim product warranties.  The material is extremely durable; resistant to warp, moisture, and insects; and can be cut, drilled, milled, and routed using the same tools you would use with wood.  Cellular PVC is a white material that is available as trim or cornerboard, profiled mouldings, and sheet goods. Trim boards, depending on the manufacturer, have nominal board lengths of 8, 10, 12, 16, 18, and 20'; standard nominal widths of 3, 4, 5, 6, 8, 10, and 12"; and nominal thicknesses of 5/8, 1, and 5/4".  Trim products can also have a smooth surface or can resemble wood with a textured wood grain surface.

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How to Install Cellular PVC Trim

Due to material similarities, the installation of cellular PVC trim is similar to that of exterior wood trim. Also, just like other building materials, cellular PVC trim will expand and contract.

●1/8" of expansion and contraction space should be allowed for every 18’-0” of installed material.

●Miter and scarf joints should be adhered with a proper adhesive to eliminate joint separation.

●Boards are to be secured with two standard wood trim fasteners on both sides of a joint, and then two fasteners every 16" along the length of the trim board.

●A nail gun or hammer can be used to drive fasteners into the material and secure it to a solid substrate. Staples, small brads, and wire nails cannot be used for the installation of cellular PVC material.

●If you decide you want to paint cellular PVC, you can expect a properly prepared and coated surface to last twice as long as painted wood. A 100% acrylic paint can be used for colors with a Light Reflective Value (LRV) of 55 or higher. Darker colors with a LRV of 54 or lower require special application paints.


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