Just finished my P85 and thought I’d add a few key learnings from me. I did my render in three layers. It took me a while to work out how much to mix for each layer. Two mixes per layer worked for me and fitted in wheelbarrow. I did half the oven at a time with each mix. I used 6 litres (1 1/2 4 litre ice cream container) per part of the dry mix parts. Ie 48l per mix or 96l per layer.
I bought the P85 kit over a year ago, but I also got a puppy a few weeks before the P85 was delivered. I finally started on the build last week and I just got the second perlite coat on. I'll try to get the last of it done in the morning. It's difficult for me to use the float. I probably need to wait for the coat to set a little bit, wet the dome, then float the top layer. I hope that gets it spherical like you have it here
Yeah, that last bit took me 4.5 hours. FYI: My measuring unit was a quart sized container. So, 5 quarts perlite, etc. I got everything reasonably spherical, but had to throw a tarp on it while the rain starts. Hopefully, that didn't shift any of the render while I dragged the tarp on
@@TheFireBrickCo YES! I made my first pizza last week and it wasn't quite up to my standards, but hey, it's a learning process. The dome went on well enough, although, there has been some minor cracks in the dome. I suppose that's to be expected though. Thank you so much to all the team at The Fire Brick Company!!
Hi, I'm from the UK, these videos are the best i can find online anywhere, great detail! I've just been on your site but cant find the render mix ratios. Any chance you could post or let me know? Also the mortar mix if possible please? 👍👍👍
Great stuff, thanks for the speedy reply 👍 The series of vids have so much info in them they are far better than a lot of the others on TH-cam and deserve a lot more views.
Good question - it's actually treated Perlite mixed with Portland Cement, Hydrated Lime and Washed Sand. We don't need high temperature cement in this area as the ceramic fibre blanket protects this layer from really high temperatures.
Just finished my P85 and thought I’d add a few key learnings from me. I did my render in three layers. It took me a while to work out how much to mix for each layer. Two mixes per layer worked for me and fitted in wheelbarrow. I did half the oven at a time with each mix. I used 6 litres (1 1/2 4 litre ice cream container) per part of the dry mix parts. Ie 48l per mix or 96l per layer.
Awesome Nicole! Thankyou for the detail, we might add that to our next iteration of the instructions!
I bought the P85 kit over a year ago, but I also got a puppy a few weeks before the P85 was delivered. I finally started on the build last week and I just got the second perlite coat on. I'll try to get the last of it done in the morning. It's difficult for me to use the float. I probably need to wait for the coat to set a little bit, wet the dome, then float the top layer. I hope that gets it spherical like you have it here
Yeah, that last bit took me 4.5 hours. FYI: My measuring unit was a quart sized container. So, 5 quarts perlite, etc. I got everything reasonably spherical, but had to throw a tarp on it while the rain starts. Hopefully, that didn't shift any of the render while I dragged the tarp on
Sorry for the delayed reply! Hope it has come up really nicely for you!
@@TheFireBrickCo YES! I made my first pizza last week and it wasn't quite up to my standards, but hey, it's a learning process. The dome went on well enough, although, there has been some minor cracks in the dome. I suppose that's to be expected though. Thank you so much to all the team at The Fire Brick Company!!
What is use to cover the insulation, what mixture is it?
Amazingly helpful video! Any chance you can post the link to the video you mentioned about tips for tiling around your oven?
No problems, check it out! th-cam.com/video/X1KGLfjsU3A/w-d-xo.html
Hi,
I'm from the UK, these videos are the best i can find online anywhere, great detail!
I've just been on your site but cant find the render mix ratios. Any chance you could post or let me know? Also the mortar mix if possible please? 👍👍👍
Thanks - it sounds like you tracked them down!
Can you share with us how to build a concrete dome?
Unfortuantely we can't help you there sorry
Hi Ben
You mentioned a tiling tip video. I cannot see it in the description though
Ooh good pickup there Armen! Check it out: th-cam.com/video/X1KGLfjsU3A/w-d-xo.html
Hi, how do you get the white finish on the dome?
Check out the later video in the series, it's a roll-on render
@@TheFireBrickCo thanks
What’s the ratio to the render mix? Thanks Lloyd
Hi Lloyd - check out the written instructions that you can download from our website, you'll find that answer and a lot more!
Found the mix now thanks! Does the Perlite need to be of a fine particle size?
It makes it much easier to work with, so that's what we recommend.
Great stuff, thanks for the speedy reply 👍
The series of vids have so much info in them they are far better than a lot of the others on TH-cam and deserve a lot more views.
Is refractory cement and perlite mix used to make this render?
Good question - it's actually treated Perlite mixed with Portland Cement, Hydrated Lime and Washed Sand. We don't need high temperature cement in this area as the ceramic fibre blanket protects this layer from really high temperatures.
Could you please tell me about mixed ratio of Portland cement, hydrated lime and washed sand