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-   -   Luan Plywood Underlayment (http://www.diychatroom.com/f5/luan-plywood-underlayment-144500/)

BigJim 05-22-2012 09:01 AM

Luan Plywood Underlayment
 
I have seen many times here that 1/4" Luan plywood isn't good for underlayment. Some of the men where we go to church are redoing the floor in the kitchen of the preacher's house, it has stick down tile on 1/4' plywood, over old flooring, over particle board, then plywood decking for the subfloor. When I was building I would leave the flooring to the flooring pros so I really don't know which way to go here. The men want to remove the stick down, the 1/4 inch plywood then put 1/4 luan plywood back down then tile or sheet vinyl.

I suggested they use a 1/4 inch sanded plywood instead of Luan, is this correct?

DannyT 05-22-2012 01:02 PM

luan used to be what everyone used under sheet vinyl or 12" selfstick. luan or particleboard has no place under ceramic tile. if they decide on ceramic tile then the particleboard should be removed and replaced with 5/8 or 3/4 plywood, then 1/4 cementboard over that applied following manufacturers guidlines.

framer52 05-22-2012 02:09 PM

I prefer the 2/8" sanded plywood myself.

No luan please.

rusty baker 05-22-2012 05:04 PM

Luan has voids in the plys and can collapse. Use only underlayment grade plywood for vinyl or vinyl tile.

Seattle2k 05-22-2012 05:37 PM

Quote:

Originally Posted by framer52 (Post 926497)
I prefer the 2/8" sanded plywood myself.

No luan please.

2/8" instead of 1/4" ? :huh:

JetSwet 05-22-2012 09:13 PM

Quote:

Originally Posted by Seattle2k

2/8" instead of 1/4" ? :huh:

Maybe meant 3/8"?

Luan was big back in the day people still use the stuff now.

rusty baker 05-22-2012 10:05 PM

Quote:

Originally Posted by JetSwet (Post 926755)
Maybe meant 3/8"?

Luan was big back in the day people still use the stuff now.

It's even poorer quality now than it was 20 years ago. They started using luan because so many people screwed up masonite. Masonite was made to be used rough side up and many people installed it smooth side up. Adhesive wouldn't stick to the smooth side.

joecaption 05-22-2012 10:18 PM

Luan can also cause staining and glue reliece.
Ever seen a light colored vinyl floor that always looks dirty?
If you have to prove it to some old timers at the church go on the web site of the company that made the flooring before they lay it.
Also make sure they attach it every 4" on the edges, and 6 to 8" in the field.
I use a narrow crown pneumatic staple gun set in automatic to lay it. You can do a whole sheet in less then 2 min. and not have to go back and fill every nail hole. You still have to fill all the seams.

BigJim 05-22-2012 10:31 PM

Thanks fellows, I really do appreciate your help. I just had another thought since this floor has particle board over plywood, will the 1 1/4 inch narrow crown staples hold or will I need a longer staple to go further into the plywood subfloor?

JetSwet 05-22-2012 11:10 PM

Well the fact that you can cut it with a razor blade knife is good enough for me not to use it.

Pantherfan190 03-05-2013 05:21 PM

Flooting hardwood floors
 
I'm installing flooting hardwood in my house.The sub floor has a little give in them is this something that will mess up my new floors.

oh'mike 03-05-2013 05:31 PM

Define 'a little'----you may be just fine---but we need a little more info---what is the subfloor made of and how much does it flex?

Could you start a new thread in 'flooring'? many members won't read through an old thread like this one----go to 'flooring' click on 'new thread'---Mike------

JetSwet 03-05-2013 05:41 PM

Quote:

Originally Posted by Pantherfan190 (Post 1130583)
I'm installing flooting hardwood in my house.The sub floor has a little give in them is this something that will mess up my new floors.

Its better to start new thread.


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