#21  
Old 05-02-2011, 04:56 AM
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Default Re: My Modified Barrel Vault in Texas

I won't hurt, you just don't need the extra mass. It may be your best alternative at this point, but I wouldn't go more than an inch.

Last edited by Tscarborough; 05-02-2011 at 04:58 AM.
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  #22  
Old 05-05-2011, 05:13 PM
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Default Re: My Modified Barrel Vault in Texas

Unless you have a structural backing, you have to relay on gravity and friction alone to prevent spreading as Tscarborough has done.

Other wise, the heat/cool cycles and resulting expansion will defeat any "glue" and in time the arch will spread and eventually a brick may drop on your pizza.

Last edited by Neil2; 05-05-2011 at 05:16 PM.
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  #23  
Old 07-06-2011, 04:36 PM
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Default Re: My Modified Barrel Vault in Texas

I'm hoping to start my barrel vault soon, and am interested in what Perks1068 finally decided to do regarding the arch structure debate. Did you simply increase the thickness of your cladding after the arches were mortared in? Any other design suggestions other than the double-brick "wythe" structure?
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  #24  
Old 07-06-2011, 07:29 PM
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Default Re: My Modified Barrel Vault in Texas

Arch cannot spread since I dumped an inch of firestop between soldier course and enclosure wall. True, time will tell, but thirty pizzas and many smoked delights later, the design functions well and efficiently.
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  #25  
Old 07-06-2011, 08:07 PM
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Default Re: My Modified Barrel Vault in Texas

I have to get this off my chest. I have gone so far "off the reservation" with the design and construction of this oven that it is unlikely, after this post, that I will be allowed to do so again. First, the vault design. It works, and doesn't require either massive support or preformed structures. There, I said it. Next, and this us even more heretical, I hadn't read far enough ahead when I designed the flue and chimney. They are integral to the vault. Before anyone asks "how do you retain the heat?" Ill answer- a damper. My fires start and stay lit until I need them to start heating the vault, and then I close the damper. Works flawlessly. I know, I'm apostate, but that it is part and parcel of design. Love my oven!!!
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  #26  
Old 07-06-2011, 10:21 PM
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Default Re: My Modified Barrel Vault in Texas

Quote:
I have gone so far "off the reservation" with the design and construction of this oven that it is unlikely, after this post, that I will be allowed to do so again
Huh? This design appears highly unlikely to collapse and architecturally capable of operating indefinitely. If a hemispherical Pompeii dome without soldiers doesn't require dome buttressing why would this one? Although there are cooking-space limitations to this oven, I say keep on cooking (like TScarborough) and indeed, time will tell.

John
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  #27  
Old 07-07-2011, 08:21 AM
Peasant
 
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Default Re: My Modified Barrel Vault in Texas

Thanks for the reply Perks! I too would love to see some pics of the finished oven; I made a cobb (clay) oven with barrel vault several years ago and never even thought about vault support issues (I assume clay forms a solid, one piece arch with its own inherent strength both in the dried clay and vault design). I'm now building a brick one in another location (the clay still works great but the mud wasps love it!) and have been puzzling over this issue of trimming the bricks to increase strength vs. going with a double thickness of bricks. So, don't be shy about giving us your opinions!!!(BTW, there are pics of my cobb oven here somewhere!)
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  #28  
Old 07-07-2011, 07:45 PM
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Default Re: My Modified Barrel Vault in Texas

I have 102 photos of the project from ground-breaking in March to the inaugural pizza burn on June 24, our wedding anniversary, the oven being what my wife considers a dubious reward for having endured 22 years with me. Anyway, I'm trying to figure out how to post them without burning what final bridges I may still have left with the Forno Bravo folks.

Last edited by perks1018; 07-07-2011 at 07:47 PM. Reason: Too many words, mate
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  #29  
Old 07-07-2011, 08:01 PM
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Default Re: My Modified Barrel Vault in Texas

Post away...You have endured thus far, let your freak flag fly high and show us the pictures!!! I took a look at your photobucket pics and want to see more. It looks like an awesome project overall. Also Happy Anniversary

Peter
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  #30  
Old 07-07-2011, 08:25 PM
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Default Re: My Modified Barrel Vault in Texas

Quote:
Originally Posted by perks1018 View Post
Anyway, I'm trying to figure out how to post them .
Do you want to post them in your thread or the gallary? If it's in this thread, just select the paper clip thats to the right of the happy face. I recall you can only upload 4 or 5 at a time. If the file is too big.... you'll figure it out
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