Is ply needed under cedar t/g for closet?

[krogers]

I am framing a new closet and installing cedar lining. Most likely t&g. Has anyone else done a project like this? I have two questions. Do I have to line the entire closet in cedar in order to get the benefit. Or can I just line one wall? Secondly would you recommend sheathing the closet in plywood first in order to give a nailing surface for the t&g? Or is that overkill? Would attaching the cedar to the studs be enough? Thanks in advance.

[siliconbauhaus]

You don't say what thickness the T&G is but I would think its easily man enough to finish out the inside, especially if you're framing it out.

As far as effectivness goes against moths, I've never seen any data saying how much of it you need.

I found this site while looking it up so maybe it'll be of some use. Ignore The DIY pimping it

http://www.cedarsafeclosets.com/panels/

[Jeffrey Schronce]

I personally think a lot of Cedar applications used in closets today are for appearance/aesthetics more than true pest prevention. If you have moths, roaches, mildew, etc you have bigger problems than how your clothes look/smell.

If you are using typical cedar, it is normally 3/8". Probably not quite thick enough for stand alone installation. I think installing over OSB sheathing would result in better, smoother, more air tight finish.


100% coverage is the typical installation, particularly in walk in closets, though I don't think you would need anything more than the bottom 1/2 of the wall finished. My thinking here is that the bottom will create a threshold which roaches, etc would not cross.

[siliconbauhaus]

the only time I worry about moths is when I bring a bag of seed in for the birds in the garage and its full of larvae.......had that before....wondering where all the tiny moths were coming from, untill I opened the seed bag....gah

I spent ages getting rid of the buggers....not fun

[kramer katt]

bauhaus,
We have a cockatoo and had you same problem with seeds. Finally got idea of keeping new bags in freezer for a couple days before using or storing. Seems to keeps moths at bay. I think these are different from those that would attack wool clothes tho.
I have done a couple closets in out house with the thin t&g cedar. Seems to work best when fully lined and closet seals when closed. One with louvre doors not as effective. Also many recommend lightly sanding the cedar every couple years to renew the odor.
Anyone have a good preventative for silverfish. They can destroy paper quicker than termites go thru wood.
kk