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TOPIC: dek blocks on concrete?
#14
dek blocks on concrete? 3 Years, 11 Months ago  
I have read some of the posts about building over a concrete patio and looked at the example given with pictures. I am curious about the dek-blocks moving on the concrete. Since this is a floating deck system, are the blocks anchored to the concrete somehow? It seems that over time and the factors of frost heave, would cause the blocks to shift or move on the concrete. I have been giving your system a great deal of thought and would like to try it out. I have no experience in carpentry or building in general. I would be building this deck over an existing concrete slab, which has a slight angle for water run off, and will then extend into the yard. Thank you for your help....great site by the way.
Joe
Norfolk, VA
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#15
Re: dek blocks on concrete? 3 Years, 11 Months ago  
Yes, you can build over existing concrete, as long as your slab is not frost protected. Your slab will actually moves with the freeze and thaw, just as our floating foundation deck system does. I attached some links below that describe how it all works.
www.deckplans.com/FAQ/05_FAQ_deckworks.html
www.deckplans.com/FAQ/05_FAQ_Patio.html

You will want to level your deck with 4x4 posts as described below.
www.deckplans.com/howto_level.html

I attached some great examples of ideas that other homeowners have had in building over existing concrete.
www.deckplans.com/Howto/DOY/2003/Walsh01.html
www.deckplans.com/gallerydetail.asp?deck...;amp;TypeSearch2=Yes

Deckman
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#16
Re: dek blocks on concrete? 3 Years, 11 Months ago  
Thanks Deckman for your help. I'll be starting this project in the near future as long as building codes permit. I'll be sure to send in the pics when it's done.

Joe
Norfolk, VA
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#17
Re: dek blocks on concrete? 3 Years, 11 Months ago  
Great Joe,

Please send us some pictures and let us know if we can be of further assistance.

Good Luck with your project,

Deckman
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