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MDF or 3/16 plywood? #950335
01/08/19 12:54 AM
01/08/19 12:54 AM
Joined: Nov 2006
Posts: 2,047
N. Florida
K
kerk Offline OP
Super Handyman
kerk  Offline OP
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K

Joined: Nov 2006
Posts: 2,047
N. Florida
Have to replace some (not all) paneling on a shed ceiling that was water damaged. Leaks eliminated. Old paneling was all wood (plywood with veneer).

Little leery of MDF as I'm concerned it could eventually start to sag between the 24" trusses. Should I be? Years ago I saw some MDF paneling put up in a non AC garage area (Florida), and it warped pretty good.

The backside would be exposed to a vented attic area and have R13 paper back insulation on it.

Last edited by kerk; 01/08/19 12:58 AM.

Respect all men .... grovel to none.
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Re: MDF or 3/16 plywood? [Re: kerk] #950342
01/08/19 05:33 AM
01/08/19 05:33 AM
Joined: Sep 2003
Posts: 6,641
Jayhawk Land
RCovell Offline
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RCovell  Offline
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Jayhawk Land
I'm not a fan of using MDF anywhere outside. I've seen too many problems with it failing as it has little structural integrity. For the same reason, it will sag between trusses. I vote for plywood.

Bob.

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Re: MDF or 3/16 plywood? [Re: RCovell] #950345
01/08/19 04:03 PM
01/08/19 04:03 PM
Joined: Jan 2002
Posts: 24,181
Wilmington, Delaware
Just_Bill Offline
Carpal Tunnel
Just_Bill  Offline
Carpal Tunnel

Joined: Jan 2002
Posts: 24,181
Wilmington, Delaware
What he said!!

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Re: MDF or 3/16 plywood? [Re: kerk] #950370
01/09/19 01:46 PM
01/09/19 01:46 PM
Joined: Nov 2006
Posts: 2,047
N. Florida
K
kerk Offline OP
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kerk  Offline OP
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K

Joined: Nov 2006
Posts: 2,047
N. Florida
Thanks guys. Went with plywood (3/16 finsish). Primed yesterday, mount today. Fortunately framing was put in place so it can be tacked on ALL edges and every 24.


Respect all men .... grovel to none.
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Re: MDF or 3/16 plywood? [Re: kerk] #950426
01/10/19 12:29 AM
01/10/19 12:29 AM
Joined: Jan 2002
Posts: 24,181
Wilmington, Delaware
Just_Bill Offline
Carpal Tunnel
Just_Bill  Offline
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Joined: Jan 2002
Posts: 24,181
Wilmington, Delaware
thanks for the reply. Too often we never know how a project ends up, so we don't know if our suggestions were valid.

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Re: MDF or 3/16 plywood? [Re: Just_Bill] #950532
01/12/19 12:41 PM
01/12/19 12:41 PM
Joined: Nov 2006
Posts: 2,047
N. Florida
K
kerk Offline OP
Super Handyman
kerk  Offline OP
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K

Joined: Nov 2006
Posts: 2,047
N. Florida
Originally Posted by Just_Bill
thanks for the reply. Too often we never know how a project ends up, so we don't know if our suggestions were valid.


Well we probably won't know about the 'valid' until the stuff has been in place for a couple years. 'Sag' was the main concern, and that would take a while to show up even with MDF, but I expect the plywood was the right call.

Looks good, but what a PIA doing by yourself. Lower back and neck paid the price. LOL


Respect all men .... grovel to none.
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Re: MDF or 3/16 plywood? [Re: kerk] #950561
01/13/19 12:51 AM
01/13/19 12:51 AM
Joined: Nov 2006
Posts: 2,047
N. Florida
K
kerk Offline OP
Super Handyman
kerk  Offline OP
Super Handyman
K

Joined: Nov 2006
Posts: 2,047
N. Florida
Have to be a little creative when your only helper is inanimate.
[Linked Image]

All done.
[Linked Image]


Respect all men .... grovel to none.
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Re: MDF or 3/16 plywood? [Re: kerk] #950570
01/13/19 12:26 PM
01/13/19 12:26 PM
Joined: Jan 2002
Posts: 24,181
Wilmington, Delaware
Just_Bill Offline
Carpal Tunnel
Just_Bill  Offline
Carpal Tunnel

Joined: Jan 2002
Posts: 24,181
Wilmington, Delaware
for 33 years I have worked essentially alone, with an occasional helper. You learn how to get things done with makeshift gadgets, and it has served me well. Nice job.

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