#1  
Old 10-29-2013, 10:22 PM
Serf
 
Join Date: Oct 2012
Location: thailand
Posts: 19
Default Plywood stuck to bottom of hearth

I built the form to support the hearth, but got a guy who was building a guest house next door to look it over and then pour the hearth. His crew added two more cross supports and while I was away poured the hearth. I have removed all of the legs supporting the hearth, but have had no luck getting the plywood away from the concrete. Obviously no release agent was applied to the plywood.

What to do?

What happens if I leave it there?

Any tips for prying it loose?
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  #2  
Old 10-29-2013, 11:31 PM
brickie in oz's Avatar
Il Pizzaiolo
 
Join Date: Mar 2009
Location: Whittlesea
Posts: 3,455
Default Re: Plywood stuck to bottom of hearth

Quote:
Originally Posted by Thailandnotes View Post

What to do?
Just leave it there.
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  #3  
Old 10-30-2013, 05:26 AM
Laborer
 
Join Date: May 2013
Location: Groveland,CA
Posts: 52
Default Re: Plywood stuck to bottom of hearth

Set a saw blade to just less than the thickness of the ply and cut it. It should break easily at the cut.
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Old 10-30-2013, 06:29 AM
boerwarrior's Avatar
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Join Date: Apr 2013
Location: Santa Rosa, CA
Posts: 431
Default Re: Plywood stuck to bottom of hearth

I put in several screws, but didn't screw them in all the way. Then I used a pry-bar on the screw heads to work the plywood loose.
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  #5  
Old 10-30-2013, 03:00 PM
Serf
 
Join Date: Apr 2012
Location: NY
Posts: 20
Default Re: Plywood stuck to bottom of hearth

I used the screw trick also, worked for one side. I had to screw them in on the other piece to leverage the wood off the cement, but it didn't hurt it any. I worked slowly and around the perimeter.
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