5 Things You Should Know Before Building With Composite Wood

Composite decking wood sounds good but costs a lot of money. Composite decks are not too strong either and require additional sub structural strength than normal decks. If your contractor does not build them properly the company that manufactured the product will not stand behind the guarantee, so be careful in your choice.

They all fade in the sun. In recent years however, they have made some improvements. If composites are so good, then why do they require you to use only treated wood as the framing underneath? One would think that if the wood is so good, why can't you use it as a substructure? Why do so many composites require a gap of one foot per joist? Instead of the universally accepted 16" O.C. (on center). Because composite decking wood is very weak structurally, it requires real wood to be used underneath. On hand rails, it is even worse.

Why do composites decks need such a big gap between the decking boards? - They swell from water absorption.

I have seen countless Trex decks built by inexperienced contractors fail in the first year.

They did not put enough gap between the decking boards, and when the winter rains came, the deck absorbed the water and expanded like a wet sponge. Soon the deck mushrooms up above it's decking joists below. The gap between the boards is needed to allow the composite wood to expand as it get wet. When confronted with these complaints the manufacturer replaces the wood for free plus gives you $2500, to settle. We got the recipe wrong on that batch of wood is the answer given as an excuse to the home owners. Do you buy that? I most assuredly do not!

That is why they changed the lifetime guarantee to a " Limited 25 year guarantee". Composite wood decking fades over time. It has so much glue content, you can not paint it because it looks weird and the paint does not take to the composite. Now they have Trex dye. So many people complained, they invented a dye for decks. I do not know about you, but, give me a break. I would rather get new carpet, than to have it dyed. I use dye to color my Easter eggs, but that is about it. Point being, research it before you use it. Composite wood salesmen talk a good game, but do they walk the walk?

Tired of getting the run around on your decking needs? Contact a professional at Delphi Construction to answer any of your decking questions today.

Chris Doctor is a licensed general contractor in the state of California.
Owner of Delphi Construction # 631583
Celebrating 20 years of building.

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