Getting ready to start a build in Georgia

[DavidApp]

Re: Getting ready to start a build in Georgia

Hello GianniFocaccia

Thank you for your input.

I will cast 3" Vcrete blocks to go under the arch support and then mortaring them to the slab.. I think that by casting them separate from the slab I can avoid getting the FB wet.

David

[GianniFocaccia]

Re: Getting ready to start a build in Georgia

Arch support columns sitting directly on the support slab will bleed residual heat from the oven if you have no heatbreak. Most builders place the entryway and oven on fiber board or vermicrete, which are more than up to the task of supporting the weight.

[DavidApp]

Re: Getting ready to start a build in Georgia

Hello All

The entry way bricks will be on 3" of FB like the oven floor. My question is this. Should the entry way arch support columns be on the FB, Cast V cement or on the concrete slab? The FB seems to have a bit of give to it so I was concerned that it may not be able to support the weight of the arch and chimney.

Thank you.
David

[DavidApp]

Re: Getting ready to start a build in Georgia

Hello All

Picked up 2 bags of Heatstop 50. It is expensive but I have not been able to find "S" type lime so I had no other choice. I will be getting some more FB so that I can have 3" if insulation under the hearth bricks.

I got the slab poured today. About 1/2 way through mixing 20 80lb bags of concrete I thought that a truck with redimix would have been a good idea.

David

[DavidApp]

Re: Getting ready to start a build in Georgia

Hello Stonecutter

I am going to get a couple of bags of Heatstop 50 as I am unable to find "S" type lime.

The block work is finished and the corner voids are filled with concrete and rebar. The other voids are filled with broken bricks and topped off with concrete.

I will be going with a 5" thick hearth slab but adding 1" to the height by raising the forms around the blocks. This is to raise the oven floor an 1" I will also have a 5" overhang on the slab so that I can finish the oven with the same bricks as the house.

Hope to get the forms finished tomorrow and the slab poured by the weekend.

David

[stonecutter]

Re: Getting ready to start a build in Georgia

Hello Stonecutter

This is just "S" type lime. Not the cement labeled "S" type. There are a few lumps that break up easily but if there is any doubt I think I will get a new bag.

David

Yes, understood.....the same thing apples to lime. Any hard bits means the bag was compromised by moisture.

[DavidApp]

Re: Getting ready to start a build in Georgia

Hello Stonecutter

This is just "S" type lime. Not the cement labeled "S" type. There are a few lumps that break up easily but if there is any doubt I think I will get a new bag.

David

[stonecutter]

Re: Getting ready to start a build in Georgia

I take it that S type lime loses its properties when stored for a long time. Had a hard time finding it but I will get a new bag.

Humidity will make the material go 'off'...harden up. If you open the bag and see zero evidence of that, then cover the mortar bag with plastic and tape it off until you're ready to use it. But if you have even a small amount of hard bits in there, trash it.

[DavidApp]

Re: Getting ready to start a build in Georgia

Hello John

I had not thought about the fact that I can see the fire from the kitchen window.
It will be easier to get the bread and pizza to the oven. Only a few steps from the backdoor.

I plan on getting this one right with help from this Forum. The help and knowledge here is amazing.

Thank you.

David

[GianniFocaccia]

Re: Getting ready to start a build in Georgia

Great setting for your oven. You will like having a direct line of sight from the window to the inside of your oven to monitor your fires from inside.

Take your time on your build, worry more about quality than speed, and enjoy the journey.

Looking forward to watching your progress.

John

[DavidApp]

Re: Getting ready to start a build in Georgia

Hello Stonecutter

Thank you for your input.
The elbow measurement works for setting a vice on a bench so it should be about right for the oven floor.

The photo is a bit misleading and I may have moved a bit further from the existing wall for that very reason. Went out to check the to see how much room I will have and it is about 9 to 10" between the outside of the oven brickwork and the wall. It will probable be a pain to do the rendering on the dome.

I take it that S type lime loses its properties when stored for a long time. Had a hard time finding it but I will get a new bag.

Would not win any prizes for speed on block laying.

[stonecutter]

Re: Getting ready to start a build in Georgia

Looking at your second picture, are you leaving enough room between the masonry and your house for insulation and cladding?

BTW, toss the bag of Type S ....it's $8-$10 we're talking about.

[stonecutter]

Re: Getting ready to start a build in Georgia

Just above elbow height is a comfortable level.

[DavidApp]

Re: Getting ready to start a build in Georgia

Hello All

I am back in town and have started on the block stand today.

The hearth floor is going to end up at about 42". Does this sound a bit too low? I do have some half high blocks which would give me a 46" hearth.
Hoping to pour the hearth slab before Christmas.

I will be getting some more Fiber Board so I will have 3" of insulation under the hearth.
Will post photos of the block work in the morning.

[DavidApp]

Re: Getting ready to start a build in Georgia

Picked up my Fiber Board and Blanket. I was in Atlanta GA and took the chance to pick up the insulation. It saved a 150 mile round trip.

Is there much advantage to adding 1" of Vermiculite Concrete under the fiber board? I will be putting 2" of fiber board under the hearth.

Has anyone made 1" thick Vermiculite Concrete slabs. Allowed them to set and fully cure then setting them in the Hearth pour.

Still out of town working so I have not made any progress on the build.