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Post by cannyfradock on Apr 30, 2012 19:07:56 GMT
Cec Yes.....use the chicken wire on your vermecrete also......it all helps. I relate a lot to my building background when I can. When rendering a house wall which will be prone to a lot of driving rain, the first coat has the waterproofer in. Waterproofer tends to deaden the mix, so it is applied fairly wet. This waterproof coat doesn't take kindly to being messed about with a finishing trowel or a wooden/plastic float, (if it is made flat(after laying on) with trowel or float it has a tendancy to seperate from the surface it is applied to, leaving it hollow and prone to cracking. This waterproof coat is best just laid as flat as you can get it, then scratched......  don't know who that fat guy is, but that's a "scratch coat" The final coat can be applied, then when starting to "go off" or stiffen it can be trowelled with a plastic coat and then finished with a sponge. I really hope you get a bit more feedback as I am only relating to things that I have learned on site. As a bricky ...I'm not a bad plasterer......but I'm not a plasterer!!!......if you see what I mean. Terry Attachments:
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cec
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Post by cec on Apr 30, 2012 19:20:53 GMT
What's a plastic coat , is meant to be float lol.
When you say a flat a poss , how can ya on a dome ? , do you meant an even layer .
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Post by cannyfradock on Apr 30, 2012 20:37:10 GMT
.....yep I meant an even layer. You can "play about" with the finish layer a bit more....use the trowel to get a good finish, then when "crusty?" use a flat sponge to get a nice finished surface for painting.
The plastic coat is sometimes worn to sordid cinema's.......I meant plastic float.....oops.
Terry
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cec
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Post by cec on May 3, 2012 19:58:34 GMT
Right Iv gave the dome a good rendering (scratch coat ) tonight , but when I light the beast up I get as much smoke out the porch as I do out the chimney , is it because the porch isnt long enough ?
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Post by cannyfradock on May 3, 2012 20:24:27 GMT
It's more likely to be that during your "gentle" curing, the oven(and chimney) doesn't get hot enough to works it's magic.
Once your oven gets some real heat it will heat up the chimney, which will then be like a magnet to attract the smoke from your initial burn up. Some people use things like a gas torch to heat the inside of the chimney up before firing so as the initial smoke draws through the chimney even before it gets hot through firing.
Terry
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cec
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Post by cec on May 3, 2012 20:34:23 GMT
Cheers terry ,
How do I know when it's ready for a good burn up , Iv only be burn for about an hour with little bits ( letting it die down then a bit more wood ) I would guess Iv only had it to 100 c , ( I need a thermometer )
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Post by cannyfradock on May 4, 2012 7:10:33 GMT
cec
I don't think there are any hard and fast rules for oven curing. My oven....I told the owner to light 3 fires a day for 2 weeks starting from kindling and making his way up to decent fires over this long period. My bricks were dry and laid in hot weather, so this time of the year I would just say slowly, slowly and the longer you slowly draw all the moisture out the better.
Terry
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Post by cannyfradock on May 4, 2012 7:13:43 GMT
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tapir
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Post by tapir on May 4, 2012 7:54:50 GMT
My bricks were dry and laid in hot weather, so this time of the year I would just say slowly, slowly and the longer you slowly draw all the moisture out the better. Terry Last weekend my unfinished oven got pretty wet, I shone a 500W halogen site light on it - pretty close, and steam started to come off. Not much, but enough to suggest that a roaring fire would have been a bad idea (nb- this was the exposed firebricks that got wet) |
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cec
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Post by cec on May 4, 2012 15:59:54 GMT
cec I don't think there are any hard and fast rules for oven curing. My oven....I told the owner to light 3 fires a day for 2 weeks starting from kindling and making his way up to decent fires over this long period. My bricks were dry and laid in hot weather, so this time of the year I would just say slowly, slowly and the longer you slowly draw all the moisture out the better. Terry Bloody hell , I don't think I can wait that long  Iv had a double calor burning ring on it for about 6 hrs worth and 3 little fires , I was hoping to try a pizza either tomorrow or Sunday ( weather permitting ) . Picked up some waterproofed today so I need get that done 1st , |
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cec
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Post by cec on May 5, 2012 18:41:48 GMT
Right quick update Cooked pizza tonight and 1st few where tops  , then I seamed to be losing heat quick , Maybe should of had more wood ? I don't know untill I try it with more , But what I will say insulation is the key ...... The outside got quite warm , but if I had done as every said I don't think it would of got that warm .without seeing / feeling someone's else is I won't know . So I think the moral is insulate , insulate then a bit more insulation . Any way Can always I add a thermal blanket on top of what Iv done , then re-render , not the end of the world . I did pics but on the I pad so I can't put on here , so if you want to see em go on my Facebook page , Pitbike cec |
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Post by turkey on May 5, 2012 19:10:00 GMT
to use photos from an iPad you can use Photobucket. It has an iPad app and if you sign up for free I think you get a unique Id that you can email photos to and they appear in your account and it gives you the code to copy and paste into a forum to show.
I don't have my oven done so can't help there yet I am afraid.
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cec
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Post by cec on May 5, 2012 19:41:38 GMT
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cec
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Post by cec on May 5, 2012 19:42:33 GMT
Cheers turkey , I never knew that that could be done ,
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cec
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Post by cec on May 5, 2012 19:43:01 GMT
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, then I seamed to be losing heat quick , 
