Do Cellular Pvc Floor Boards Expand And Contract

On long runs i cut 15 degree or 30 degree scarf joints.

Do cellular pvc floor boards expand and contract.

For cellular pvc trim as well as most exterior building products the focus is on linear movement since movement along the product s length is what needs to be controlled especially where there are long runs of trim if your cellular pvc trim is going to move it will be most noticeable in the fascia frieze or rake boards on a house. Pvc also called plastic decking can run between 9 38 and 12 40 per square foot while trex composite decking can cost between 11 to 15 per square foot. Builders like cellular pvc trim for a lot of reasons. Finally i glue the butt joints.

Gap for every 18 ft. When you re trimming out a window there s not much movement at all but installers will need to pay special attention on. That s not to say pvc trim stays entirely stationary. This article covers why the material type and the fastener used need to be considered.

Wood moves due to moisture but plastic products will expand and contract with changes in temperature says steve booz vice president of new product development and product management at royal building products. If it s between 60 and 80 degrees leave a 1 16 in. Far from being the durable low maintenance product many homeowners hope that it will be pvc trim can lead to several aesthetic and structural problems over time. There isn t much difference in price between pvc and composite decking either.

Temperature expansion thermal expansion of pipes and tubes stainless steel carbon steel copper plastics and more. I use pvc glue in the joint and fasten the joint to the subfascia with trim screws within 2 inches of the end of each board. For centuries decks have been constructed using traditional lumber with little regard for proper deck board spacing. After installation cover the gap with acrylic or.

I also apply construction adhesive between the subfascia and the pvc in the area of the joint. If you re installing trim in temps higher than 80 degrees f cut pieces to fit tightly. Pvc trim is made from a honeycomb cellular structure of polyvinyl chloride. Pvc trim boards will expand and contract with wide variations in temperature.

You don t have to paint it. Astm d2241 poly vinyl chloride pvc pressure rated pipe sdr series dimensions dimensions of pvc pipe sdr series. But it holds paint well. Both are resistant to insects and aren t prone to mold or rot.

Astm d2665 standard specification for poly vinyl. Deck board spacing is crucial for the looks and health of a deck it s not one size fits all.