Floor Bounce

Reply

  #1  
Old 11-15-11, 12:46 PM
Member
Thread Starter
Join Date: Dec 2009
Location: VA
Posts: 35
Floor Bounce

I am thinking of installing tile flooring in my kitchen but I am considered the bounce the floor has would cause the grout/tiles to crack over time. Would using concrete backer board on top of the subfloor stiffen the floor enough to remove the bounce or should I re-enforce the floor joists in the crawl space with sister joists to remove the bounce?

Leslie
 
Sponsored Links
  #2  
Old 11-15-11, 05:02 PM
Member
Join Date: Aug 2009
Location: USA
Posts: 4,941
What is the span and size of the current joists?
 
  #3  
Old 11-15-11, 05:27 PM
BridgeMan45's Avatar
Member
Join Date: Oct 2011
Location: USA
Posts: 3,196
And knowing the spacing would also help.
 
  #4  
Old 11-15-11, 07:25 PM
Join Date: Dec 2005
Location: USA
Posts: 3,188
CBU will add no appreciable structural stgrength to the floor. If it bounces it is not stiff enough to support tile.

Take a look at the size, spacing and span of the joists and then google "joist span tables".
 
  #5  
Old 11-16-11, 12:01 PM
Group Moderator
Join Date: Oct 2004
Location: WI/MN
Posts: 18,650
As stated, CBU will not solve any problems in floor structure. Should your flooring system be inadequate, the sister of joists would be the way to go if building a bearing wall or some other system underneath is not palatable to you.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes