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Old 05-24-2007, 01:13 PM   #1
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rebuilding a deck


I want replace my pressure treated decking with new maintance free decking. Is there any reason I can't just overlay the older (8yrs) but still in good shape pt deck?

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Old 05-24-2007, 01:44 PM   #2
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Unnecessary extra weight. You'll realize that the composite boards are very heavy.

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Old 05-26-2007, 09:22 AM   #3
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I would be worried about water getting trapped between the two.
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Old 05-26-2007, 10:31 AM   #4
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Quote:
Originally Posted by Darylh View Post
I would be worried about water getting trapped between the two.
That would be my primary concern too. Even pressure treated lumber will breakdown and lose it's resistant properties, over time in areas of standing water.....
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Old 05-26-2007, 08:15 PM   #5
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rebuilding a deck


You will want to remove your decking... You may find your frame is not in as good a shape as you think. Any issues with the frame should be fixed prior to putting down composite decking.
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Old 05-28-2007, 08:20 AM   #6
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rebuilding a deck


Do it right and remove the old ptw decking. When you remove it, you may find a lot of cracks in the top edge of the joist's where the screws or nails went in. If thats the case, you will need to attach ptw 2 X 4's to the joist's to use as a new surface for attaching the deck boards. If you install the new boards as is, then over time, theres a very good chance that the boards will move, leaving larger spacing between boards in some areas and smaller spacing in others. Don't use nails on the 2 x4's and use enough screws so it don't move.
When you select the ptw 2 X 4's, lay them on edge on the floor and pick out the straightest one's. This will help in saving some labor time when you run them parallel and level with the joists. You should also ask around from some professionals about which composits are best and why. Good Luck.

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Old 05-28-2007, 11:08 AM   #7
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Well since someone else mentioned about asking pros about what brand composites to use... I will put in my 2 cents. I love Correct Deck brand composite materials. The new CX line is very nice.

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