#11  
Old 12-13-2010, 05:21 PM
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Default Re: FBX insulation board

Quote:
Originally Posted by Lburou View Post
OK fxpose (George), let me run this by you and see if I really understand, OK?
The board can take the weight of the oven floor AND the dome, yes....?
(It seems very lightweight to do that). Do you put the dome directly on the board, or do you use a layer of sand and fireclay, or perhaps, some home brew?


Thanks for clarification
Yes, everything sits on the board, as you can see from this photo.
The firebricks sit directly on the board, and nothing in between (no fillers) as long as the board surface is nice and even.
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  #12  
Old 12-13-2010, 05:39 PM
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Thumbs up Re: FBX insulation board

Quote:
Originally Posted by fxpose View Post
Yes, everything sits on the board, as you can see from this photo.
The firebricks sit directly on the board, and nothing in between (no fillers) as long as the board surface is nice and even.
Thanks!
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  #13  
Old 12-13-2010, 06:15 PM
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Default Re: Ceramic Fiber Board

Usually the board is flat enough to put the brick floor directly on the insulation board without any leveling medium. If one brick is a bit low you can supplement it with a bit of brick cutting slurry or fireclay.

Whether to build the dome on top of the floor bricks, or cut the floor bricks to fit inside the dome is entirely builders choice. I built my dome on the floor to avoid a few fussy cuts, and to distribute the weight a little more widely.

And yes, the board is strong enough to support your entire assembly. In my case I have two stories of heavy flue tiles piled on top of my entry, and there's no discernible settling. Remember: insulation boards are very crush resistant. They build entire buildings on top of a type of insulation board.
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  #14  
Old 12-13-2010, 09:02 PM
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Thumbs up Re: Ceramic Fiber Board

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Originally Posted by dmun View Post
snip....And yes, the board is strong enough to support your entire assembly. In my case I have two stories of heavy flue tiles piled on top of my entry, and there's no discernible settling. Remember: insulation boards are very crush resistant. They build entire buildings on top of a type of insulation board.
That is what I was concerned about, thank you for giving me confidence.....That board feels light and delicate. I'm still gathering materials. Delayed also by freezing temperatures.
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  #15  
Old 12-14-2010, 05:36 AM
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Location: grand rapids, michigan
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Default Re: Ceramic Fiber Board

good morning lburou, i set a full brick soldier course on 2" and then put another 1" inside the circle before i laid the floor. i had a couple of floor bricks that i leveled with just a little bit of loose fire clay... and i did that after i was finished with the entire build.
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  #16  
Old 12-14-2010, 05:40 AM
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Default Re: Ceramic Fiber Board

Here is a picture
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  #17  
Old 12-14-2010, 05:44 AM
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Default Re: FBX insulation board

here is a picture
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  #18  
Old 12-14-2010, 06:28 AM
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Thumbs up Re: FBX insulation board

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Originally Posted by morrishuckeba View Post
here is a picture
Thank you!
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  #19  
Old 01-10-2011, 05:40 AM
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Default Re: Ceramic Fiber Board

Hi,

I've been getting a lot of help from you all in planning my oven build, thanks.
I'm about to start my build and have bought three 2" FB ceramic boards for below the floor.
Since I am building a 42" Pompeii it seems that three boards does not quite cover the complete wall unless I make some extra cuts in the board. I cam up with this plan and I wonder what you all think. I have never worked with this board material so I wonder if I am dreaming that I can make these cuts cleanly.
The plan is to use two full size boards and cut one into three 8" wide boards and place them like in the attached image.

Thanks for your input!

Jason

Charlottesville, VA

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  #20  
Old 01-10-2011, 11:24 AM
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Default Re: Ceramic Fiber Board

i cut mine with a jigsaw. very clean and very fast. make sure you wear a mask!
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