DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Walls and Ceilings > Ply wood for wall and celines?




Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old 10-18-2009, 10:25 AM  
johnism
Junior Member
 
Join Date: Oct 2009
Posts: 3
Default Ply wood for wall and celines?

I have a a space that was built out in the 50 but never finished and was wondering what would be wrong with using plywood instead of dry wall?
The space is in an attic and one side of the wall is next to the garage ( just for back ground on the space). Of course I would use insulation and the a barrier the the ply wood .
Thanks for any input and help ,
John



__________________
johnism is offline  
 
Reply With Quote Quick reply to this message
Old 10-18-2009, 11:19 AM  
Cork-Guy
Cork Flooring Pros
 
Cork-Guy's Avatar
 
Join Date: Oct 2009
Posts: 243
Default

Well, besides it look rather ugly there isn't much of a problem... however it might wrap from moisture and rapid temperature changes.



__________________

[B][URL="http://www.corkflooringpros.com"]Cork Flooring[/URL][/B] - [B][URL="http://www.ventless-fireplace.org"]Ventless Fireplace[/URL][/B]

Cork-Guy is offline  
 
Reply With Quote Quick reply to this message
Old 10-18-2009, 06:05 PM  
johnism
Junior Member
 
Join Date: Oct 2009
Posts: 3
Default

why would the wall warp when floors don't ? Not arguing just curious ?

__________________

Last edited by johnism; 10-18-2009 at 07:20 PM.
johnism is offline  
 
Reply With Quote Quick reply to this message
Old 10-18-2009, 11:49 PM  
Nestor_Kelebay
Emperor Penguin
 
Nestor_Kelebay's Avatar
 
Join Date: Mar 2009
Location: Winnipeg, Manitoba
Posts: 1,844
Liked 2 Times on 2 Posts

Default

John:

When you install plywood subflooring or underlayment, the directions will normally tell you to leave a 1/8 inch gap between panels to accomodate any expansion of the panels.

You see, lumber is shipped from the mills in what's called a "kiln dried" condition, which means that it's supposed to have a 19 percent moisture content or lower. Typically the lumber will have a higher moisture content than 19 percent, and the equilibrium moisture content of wood indoors will typically be about 16 percent. As the wood dries, it shrinks, and it's that shrinkage that causes both floor squeeks and nail pops in drywall. That is, as a 2X4 wall stud or 2X10 floor joist shrink, a gap develops between the stud and the drywall or between the floor joist and the subfloor nailed to it. The floor squeek you hear is actually caused by both the subfloor and the nail vibrating as they rub against one another.

Plywood is the opposite. In order to glue the thin plies of wood securely together, they have to be dry. So, when plywood leaves the factory, it typically has a moisture content of only 4 percent. So, when plywood goes into service in a house, and it's moisture content gradually rises to about 16 percent, the plywood panel will expand a bit. It's that expansion that the prescribed 1/8 inch gap between plywood panels in a plywood subfloor are intended to accomodate.

So, the gaps between plywood panels are intended to prevent any buckling of the floor in the event there's not enough room allowed for expansion. Would you want to leave 1/8 inch gaps between the plywood panels on your walls? Prolly not.

Also, you won't like the look of plywood on your walls. I once saw a picture of a house with stained and varnished plywood on all the walls, and it was just too dark. The walls were dark and it was dark inside the house. The white or off white paint typically used indoors very much helps brighten interior space.

But, I agree that you can hang plywood on walls just like drywall. If you ever replace that plywood with drywall, then you'll need to accomodate the difference in the thickness of the two kinds of materials. For example, electrical boxes for light switches and duplex receptacles will have to be built out cuz of the thicker drywall. Similarily, the door jambs around doors would have to be built out cuz of the thicker drywall.

__________________

Last edited by Nestor_Kelebay; 10-19-2009 at 12:01 AM.
Nestor_Kelebay is offline  
 
Reply With Quote Quick reply to this message
Old 10-19-2009, 03:22 AM  
Dan K
Junior Member
 
Join Date: Oct 2009
Posts: 6
Default

drywall would be cheaper and offer a fire retardant factor as well.

__________________
Dan K is offline  
 
Reply With Quote Quick reply to this message
Old 10-24-2009, 01:08 AM  
FLGarageDoors
Junior Member
 
Join Date: Oct 2009
Posts: 12
Default

Plywood is fine as long it is protected against termites and are insulated.



__________________
FLGarageDoors is offline  
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options

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 On
Refbacks are On


Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
Exposed RO in 2x4 gable wall; convert to equiv. 2x6 wall. WallyPop Windows and Doors 2 09-06-2009 03:31 PM
Wood Door/Sidelites Separating from wall! pandora99 Windows and Doors 2 08-03-2009 04:22 PM
Can I use opposite side of exterior brick wall as interior wall finish murray382 Bricks, Masonry and Concrete 1 06-24-2009 04:06 PM
How do I attach wood mantel to brick wall? gmabcaa General Home Improvement Discussion 1 05-12-2009 04:57 PM
Vapor Barrier Over Concrete Wall With Wood Stud Facing? gcoleman General Home Improvement Discussion 3 03-21-2008 08:33 AM