PVC Decking – Azek Dec, 2016. Call Portland Roof and Deck for all your roofing and decking needs. 503.465.4940.PVC Decking and Railing Systems.With cedar decking and composite decking prices going through the roof as of late, we have been installing more and more PVC decks.PVC decking is quite a bit more money up front, but hardly no maintenance other then cleaning every year. If you have a good sub framing system made up of all pressure treated material, this system will last a long, long time.Replacing your cedar decking with PVC decking?If you have a cedar deck that is in need of replacing you might want to explore the idea of replacing it with Azek PVC decking. Really there are only a couple areas that you need to check when it comes to the question “can we replace our deck with plastic decking?”Is the sub frame made of pressure treated lumber?Is the sub framing system going to support the Plastic decking adequately?Is it in our budget?Well the most important question is it in your budget. Plastic decking will run you 3 to 4 times more then cedar decking. But no staining every year like a cedar deck needs.The deck joist of the sub framing system must be no more then 16″ on center. We like to go 12″ on center. If the joist are to far apart the decking will sag over time.PVC Decking – Azek Decking.Portland Roof and Deck.sales@PortlandRoofandDeck.com503.465.4940.