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jim81147 10-13-2012 07:37 AM

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.

deejayoh 10-13-2012 09:24 AM

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

Tscarborough 10-13-2012 01:59 PM

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.

jim81147 10-13-2012 02:23 PM

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 ?

jeeppiper 10-13-2012 03:06 PM

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....

Tscarborough 10-13-2012 03:31 PM

Re: Joint finish ?
Technically, you do not need the mortar at all. Realistically, you need the mortar to contain the fire.

david s 10-13-2012 03:35 PM

Re: Joint finish ?
Many kilns are built either partially or completely with mortar less joints.

jim81147 10-13-2012 03:54 PM

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?

brickie in oz 10-13-2012 04:04 PM

Re: Joint finish ?
Another Vaulter.....:cool:
Have you worked out how are you going to over come the side loads on the oven walls yet?

jim81147 10-13-2012 05:05 PM

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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