underlayment for hardwood floor

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  #1  
Old 02-04-10, 07:09 PM
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underlayment for hardwood floor

Hello,

I'm a newbie installing hardwood floor on the second floor of my home. My father in law recommded installing a 5/8 inch on top fo the underlayment. Is this standard procedure? Does anyone know if there advantages to doing so? Anyone have any experience with this they can share?

thanks in advance!
 
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Old 02-05-10, 01:08 AM
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Welcome to the forums! The "underlayment", which is usually builder's felt is applied directly under the hardwood flooring. Now, are you talking "underlayment" or "subflooring"?? How thick is your subflooring?
 
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Old 02-05-10, 05:44 AM
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What is the current subfloor material and thickness? Industry standard, if your joist spacing is 16" o.c., is minimum 5/8" plywood or 23/32" OSB. If you have either already, there's no need to add additional plywood.
 
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Old 02-05-10, 05:20 PM
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thanks for the response!
it looks like we have particle board 1/2'' thick.
 
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Old 02-06-10, 05:56 AM
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Whoa, time out. Particle board is not an acceptable subflooring and 1/2" is too little. Is it really "particle" board or is it an OSB product such as Advantech subflooring material? I seriously doubt particle board was used solely as a subflooring. Is there other wood below the 1/2"? Confirm this with us, please.
 
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Old 02-09-10, 08:00 AM
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I was wrong , I do have the 5/8" OSB as my subfloor.
 
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Old 02-09-10, 05:10 PM
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Roger that. Proceed, sir..........
 
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