hardwood floor over laminate


  #1  
Old 07-28-15, 06:45 PM
B
Member
Thread Starter
Join Date: Jul 2015
Location: USA
Posts: 2
Upvotes: 0
Received 0 Upvotes on 0 Posts
hardwood floor over laminate

Recently I installed x 3oak hardwood floor throughout most of my home. The sub-floor is T&G plywood to which I added 1/2 plywood to the floor so I could go parallel to the joists. I have two smaller bedrooms that I am about to do the same unless . Both rooms have a laminate (Pergo?) floor installed 20 years ago that is at the same level as the sub-floor with the added 1/2 plywood. My question is can I install the x 3oak hardwood floor over the laminate or do I have to rip it up?

Thanks!
 
  #2  
Old 07-28-15, 07:19 PM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 36,607
Upvotes: 0
Received 9 Upvotes on 8 Posts
Welcome to the forums! Laminate is a poor subfloor material. Should it get wet it will expand, and could cause problems with the hardwood installation. It is a floating floor and must expand and contract with humidity and temperature changes. If you drive a kazillion cleats or staples into it, the floor will cease to be floating and will exhibit problems associated with buckling.

Bottom line, I would not do it.
 
  #3  
Old 07-29-15, 06:05 AM
czizzi's Avatar
Member
Join Date: Jul 2007
Location: USA
Posts: 6,541
Received 15 Upvotes on 13 Posts
Mdf (laminate) will also not hold the cleats or staples. Guidelines are as follows for a nail down hardwood floor. Plywood should be minimum 5/8" thick, and OSB should be a minimum of 3/4" thick - again for holding power of the fasteners. Even though you are going over a solid subfloor, the cleats will "blow out" the other side and not have sufficient grab into the subfloor underneath.
 
  #4  
Old 07-29-15, 07:18 AM
S
Group Moderator
Join Date: Oct 2004
Location: WI/MN
Posts: 19,132
Received 1,267 Upvotes on 1,207 Posts
One more vote for removing the laminate and putting down the proper subfloor.
 
  #5  
Old 07-29-15, 09:07 AM
B
Member
Thread Starter
Join Date: Jul 2015
Location: USA
Posts: 2
Upvotes: 0
Received 0 Upvotes on 0 Posts
That's what I thought ... thanks for the quick replies!
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: