Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Flooring

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 10-04-2010, 04:33 PM   #1
Newbie
 
Join Date: Oct 2010
Posts: 1
Rewards Points: 10
Question

Perimeter expansion gap for subfloor needed?


Hi,

As my kitchen subfloor (T&G planks, 3/4 inch) had water damage and other general damage, I decided to replace it. I cut it flush with the wall, and will soon be ready to replace it with plywood (T&G, 3/4 inch) plywood. I kept reading that you always need 1/4 " expansion gap around perimeter and 1/8" in-field.

A) Do I need that gap in the perimeter for subfloor?
B) If yes, then pbly do I need support underneath subfloor along the wall (which are perpendicular to joists)?

My thinking right now is to have support under wall edge, leave 1/4" gap then fill it with caulk or other flexible materials.

Then I plan 1/2" plywood (staggered) also with 1/4 inch gap on perimeter
Then radiant floor then ditra then tile...

I hope you guys can help,
Thanks in advance


Last edited by Oakmonter; 10-04-2010 at 05:29 PM.
Oakmonter is offline   Reply With Quote
Old 10-04-2010, 10:03 PM   #2
Member
 
jlhaslip's Avatar
 
Join Date: Dec 2009
Location: Canadian Rockies
Posts: 1,280
Rewards Points: 500
Default

Perimeter expansion gap for subfloor needed?


I would block the edges as you discuss.
No gap with plywood. Cut it to within an eighth. Glued and screwed.

__________________
Quote:
Originally Posted by Bud Cline View Post
Go ahead and apply for a variance, those guys at City Hall can use a good laugh.
jlhaslip is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Is a Hot Water Expansion Tank required Needagameplan Plumbing 9 04-27-2010 03:09 PM
Bathroom perimeter joints: just leave 1/4" open on perimeter if wood trim will hide? lazzlazz Tiling, ceramics, marble 0 04-23-2010 03:01 PM
Laminate Expansion Gap & Room Size BataviaJim Flooring 7 03-25-2009 06:50 PM
Expansion Joints mpt1123@adelphia.net Flooring 4 03-09-2006 05:44 AM
expansion joint farrington135 Building & Construction 1 01-27-2006 10:02 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.