new build in Brisbane - Vibrok Caminetti

[cobblerdave]

Re: new build in Brisbane - Vibrok Caminetti

G'day
On tiling again. You have already mention that you already have some large tiles. You'll probably be using them on the other benches as well so small tiles aren't going to look so good. Large tiles are a pain to cut into a dome due to the large concave cuts. So what I'm suggesting is to cut the tiles roughly into the ceramic insulation layer then render over them. Of course this can crack at the union and possibly allow water in. Let the cement in the render start to go off and the use a steel trowel to cut back at 45 degrees around the join. When this is dry you can the squeeze in a bead of paintable flexible joint compound for wheather proofing.

Regards dave

[Greenman]

Re: new build in Brisbane - Vibrok Caminetti

Hi Applor - I just used premium mortar pre-mix to render the dome over the vermicrete layer. It gave me a good finish and I finished the job with the Dulux Acrotex shown in the pics. I tried to get away from the baby shit yellow look (used that on the base) and am happy with the grey finish.

The final finish is applied with a very coarse roller, easy to do and the finish will cover any small imperfections in your stucco coat. This is the fine coat version and I believe that it comes in more highly textured versions. This has been on for 9 months or so and is holding up just fine. Behind the image is the dome in full sun. With orchids around nobody looks at the finish on the dome.

[cobblerdave]

Re: new build in Brisbane - Vibrok Caminetti

G'day
I don't know about colouring the render coat if its to be pearlite/ cement. It's hard enought to colour render anyway, there's enough baby poo and bright yellow domes around. There are soon excellent textured paints designed for cement and brick around, and they will give you a measure of waterproofing as well. You'll have to be patient though the new cement is best left a month till coating.
Regards dave

[applor]

Re: new build in Brisbane - Vibrok Caminetti

Yeah thanks for the compliments.
It is certainly great having it assembled now and happy with those front bricks to cover the insulation it has worked well.
I just laid them there though, I will need to mortar them there.

Thanks for the advice about the top, I will look at tiling again. What about a coloured cement render?
Be aware though that I have two benchtops going on the other structures so there should be plenty of space

Any tips on cutting/shaping the dome insulation?

Also wondering the best way to render the dome after - as in what mix of materials.

I have been looking at Liteceeper's build in which he used 5:1 Exfoliators Litefill Premium Perlite and Brightonlite HE cement.
He has a nice finish on his though I was aiming for a more textured stucco finish.

[cobblerdave]

Re: new build in Brisbane - Vibrok Caminetti

G'day
Things are coming along nicely .... You must be pleased to have the oven sitting in situ now. It's looks really good . I like that flared entrance its going to be a real asset when working in your oven.
The bricks are a nice touch and fulfill the purpose of covering the insulation at the front as well. Myself, I wouldn't do coloured render around the oven on the slab. I don't think you'll find it durable enough. Consider smaller tile, a lot more cuts but easier to cut into the dome neatly. I struck the same problem and did this as well and am happy with the non stain surface as someone will always find a space to put down something greasy and staining.
Regards dave

[applor]

Re: new build in Brisbane - Vibrok Caminetti

Yeah that would have worked really well. Good excuse to buy a vs jigsaw too. Ah well.

Picked up a bag of fireclay to lay the Hearth on and get it as level as possible.
Only comes in 30kg bag and I think I used 1kg at most lol.

I have upload pics showing the early stage of laying the Hearth and then after the dome has been assembled.
That wasn't easy lol, such a heavy sucker.

I am happy enough with how it has all come together. The fit is close enough. I have a cm or two gap around the hearth inside the dome - not sure if I should just leave that or maybe just fill it with fireclay?

The last picture shows the oven with some bricks assembled along the front.
I was thinking of doing this with my leftover bricks and it works out I have exactly the right amount to cover that front.
What do you guys think?
Then after the dome is rendered I am thinking of just rendering the concrete slab with a coloured latex render or something.
Open to suggestions!

Also had a quick look and did some sanding under the slab. I am happy enough with it so I will leave it as is now.

[Gulf]

Re: new build in Brisbane - Vibrok Caminetti

A variable speed jig saw (set very slow) and a straight edge for a guide works very well for long straight cuts. Actually, the VS jigsaw works great with all cuts for CalSil .

[applor]

Re: new build in Brisbane - Vibrok Caminetti

hacksaw was recommended by the supplier as it keeps dust to a minimum.

I actually did the cutting today. Majority of it with the hacksaw and it cuts really quite easily. The difficult part was the arch kept getting in the way - shoulda bought a panel hacksaw for the job.
At the end I had a long, straight piece to cut so decided to use my circular saw for that and save myself an hour of having to do side cuts etc.
Took about 4 seconds but the dust of course just went everywhere.

Anyways my pieces are all cut and assembled on the slab. I am busy tomorrow but Monday I will be laying down some bedding material and laying the hearth and dome

Will post my pictures then of before and after.

For now I must decide if I want to bed my hearth on sand or whether I head out early Monday and buy a bag of fire clay. Only comes in 30kg bags at $20 - I'll use maybe 5kg of that though

[cobblerdave]

Re: new build in Brisbane - Vibrok Caminetti

G'day
Can't see a hacksaw cutting something like that. I was thinking more along the lines of a small saw used by plasterers for cutting holes in plasterwork , they have small sharp blades so the don't rip the face paper off.
Sorry haven't cut FBI board but cut ceramic blanket ... Watch those fibers, respirator ... No kids around
Regards dave

[applor]

Re: new build in Brisbane - Vibrok Caminetti

Yeah hopefully.

Picked up my extra calsil board today. The champs at TRM decided to let me buy only a half sheet of 65mm that I needed so really happy about that.
Saturday I will be cutting the calsil board to size/shape and then Monday I will be assembling the oven.
Just need to buy some bedding sand.

You guys all use a hacksaw for cutting the insulation board?

[cobblerdave]

Re: new build in Brisbane - Vibrok Caminetti

G'day
I was afraid it as going to be hard. But believe me now it done you will never look at it again, that would be the least looked at part of any build, outa sight outa mind
Regards dave

[applor]

Re: new build in Brisbane - Vibrok Caminetti

Thanks for the reply stonecutter. You must have missed my post at the start of page 2 though, where I changed my mind and decided to tile or render after the oven is built - so this is no longer an issue, though handy in case someone else had the same thought.

[stonecutter]

Re: new build in Brisbane - Vibrok Caminetti

For the next stage of my build I was planning to tile the whole top of the slab before placing my calsil board and hearth/oven etc on top of the tiles.
I feel that it will be easier tiling the whole area rather than doing the oven build and then having to cut/tile around the curved shape of the dome and entry areas after wards.

Is there any problem with doing it this way or anyone care to comment on my plan?

You should wait until the slab is sufficiently dry before you tile over it. An uncoupling/crack isolation membrane before the tile would be the way to go too.

[applor]

Re: new build in Brisbane - Vibrok Caminetti

edit: deleted. Found the answer here already

[applor]

Re: new build in Brisbane - Vibrok Caminetti

Did the render last night. What a nightmare - literally I think I will have nightmares of that afternoon.
The concrete render didn't like to stay on the ceiling so more than half of what I applied would fall onto the floor.
Ended up using my hands/fingers to stuff the concrete into the giant holes in the seats.
I think I should have done two different mixes. A drier mix for the seat holes that would stay in there without falling out and a wetter mix that would stay stuck to the ceiling.

Regardless I think I did manage to get all the holes covered and if I had more time I perhaps could have rendered the whole surface.

Will post a pic later - great example to everyone on what can go wrong and to avoid at all costs. Looks pretty horrible and my god the mess afterwards...