Fastening solid planks to light weight concrete

[David Jones]

Question to all you wood experts. Can or should 3/4 walnut tongue and grouve solid plank be stapled or nailed to light weight concrete. I have a floor of 4070 sq ft that has pulled apart in fact this floor has done everthing except turn upside down.

[Barry Carlton]

Oh my!!
Specs for the product?
atmospheric conditions?
Inspection or your install?
Did the fasteners reach something substantial to hold on to?

[TFP Admin]

New questions that are different than the original topic deserve their own topic. Please try to stay on-topic or begin a new one. New topics are always welcome.

T

[Floorguy]

David Jones said Question to all you wood experts. Can or should 3/4 walnut tongue and grouve solid plank be stapled or nailed to light weight concrete. I have a floor of 4070 sq ft that has pulled apart in fact this floor has done everthing except turn upside down.

NO!!!! Lightweight. Floating floor only.

[Tandy Reeves]

Do not nail hardwood flooring directly to any type concrete.

[Peter Kodner]

Tandy stated it, you cannot nail into concrete by any standard or manufacturers' directions I know of. If it is to be nailed, sleepers, screeds or plywood must be put down first. The NOFMA standard is readily available to detail acceptable means of doing this. http://www.nofma.org/Portals/0/Publi...d%20Floors.pdf

This discusses slab specifically. The manufacturer should provide guidance if this is the manner they want their product handled. Lightweight concrete may not have sufficient density to hold nails for screeds or plywood and floating sleepers may be required. Again, contact the manufacturer if this is an acceptable installation procedure!

As Floorguy suggested, floating may have been the best method for this site.

[Nick Arrera]

Is this a floor that was installed in your House David ?

[David Jones]

Ha!!ha!!I wish I had that much Walnut to work with in fact I wish I had a house that big.

[David Jones]

Thank you for all your info I went to the Nofma web and found very little on light weight concrete. The relative humidity in seven different locations was between 19 to 21% high desert location of the building. I was not permitted to remove any planks to check for penetration of the fastners, I will say several planks were very loose and tented .

[Tandy Reeves]

David my hope is that you are inspecting this floor and you did not install it. Because who ever installed it now ownes it. Concrete is concrete and you just don't nail/staple hardwood flooring to it. It makes no difference what the nail/staple penetration was. Light weight uses a different agrigate and that is basiclly the only difference. As an inspector there is nothing else you need to look at.

[Nick Arrera]

You can photograph a nailing pattern to prove they did nail it .. I have a bag of Walnuts you can have David , if that helps ?

[David Jones]

Thank you I am nuts already

[David Jones]

Thank you after reading all my Nofma material again and getting slamed so nicely I came to the same conclushion concrete is concrete

[Floorguy]

David Jones said I was not permitted to remove any planks to check for penetration of the fastners, I will say several planks were very loose and tented .

This is a joke, right??


Your not serious!!

[stullis]

Tandy Reeves said . Because who ever installed it now ownes it. .

Why? "They sell it... we install it..." Lo Down Paraphrased from Flexitec Fiasco.