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Old 10-13-2012, 08:37 AM
Peasant
 
Join Date: Oct 2012
Location: colorado
Posts: 49
Default Joint finish ?

In reading these differnet threads i have found many of the answers to my questions , but one thing I have not ran accross is joint finish on the inside of the oven . Are the joints struck ( smoothed out with a joint tool ) or are they just cut flush with the brick . I know towards the end you may not be able to reach some of them to finish , so maybe its really not important . Thanks.
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Old 10-13-2012, 10:24 AM
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Join Date: Jul 2010
Location: Seattle
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Default Re: Joint finish ?

Jim -
Generally, builders angle the bricks so that there is almost no joint inside the oven. You can use a joint tool, but really you want as small a joint as possible
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Old 10-13-2012, 02:59 PM
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Default Re: Joint finish ?

If possible, it will always be better to densify the joint, whatever it is. Not for shape, just to pack the mortar. A finger works fine.
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Old 10-13-2012, 03:23 PM
Peasant
 
Join Date: Oct 2012
Location: colorado
Posts: 49
Default Re: Joint finish ?

If that is the case , what would happen if the bricks were dry stacked ? The cladding should hold everything in place , should'nt it ?
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Old 10-13-2012, 04:06 PM
Journeyman
 
Join Date: Mar 2011
Location: Bucks County, PA
Posts: 297
Default Re: Joint finish ?

The joints in the top of my dome are down-right embarrassing. I have stelagtites hanging from the ceiling!!! I wish I could do all over again, but guess what, it works fine! As a matter of fact, my oven is cranking right now! Cooking some wings and baked potatoes....
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Old 10-13-2012, 04:31 PM
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Default Re: Joint finish ?

Technically, you do not need the mortar at all. Realistically, you need the mortar to contain the fire.
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Old 10-13-2012, 04:35 PM
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Location: Townsville, Nth Queensland,Australia
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Default Re: Joint finish ?

Many kilns are built either partially or completely with mortar less joints.
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  #8  
Old 10-13-2012, 04:54 PM
Peasant
 
Join Date: Oct 2012
Location: colorado
Posts: 49
Default Re: Joint finish ?

I am building a barrel vault oven and want to lay the base bricks horizontally for 3 courses before starting the arch. I think I will put a small mortar joint on this "wall" just to hold them in position for the arch. Does that sound like a reasonable method?
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Old 10-13-2012, 05:04 PM
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Default Re: Joint finish ?

Another Vaulter.....
Have you worked out how are you going to over come the side loads on the oven walls yet?
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  #10  
Old 10-13-2012, 06:05 PM
Peasant
 
Join Date: Oct 2012
Location: colorado
Posts: 49
Default Re: Joint finish ?

Al , I am planning on a 4 inch cladding . My thinking might be all wrong here , but living where the avg. temp is 40 degrees or below for 5 months out of the year , I am thinking that the mass will be to my benefit . Thoughts?
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