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Old 11-01-2011, 12:00 PM
gtofani's Avatar
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Default Roof-thinking ahead

I know I am not ready yet but I am thinking ahead to the outside appearance of my build.
I see some guys use wood on the metal studded roof rafters.
Is this ok? I thought wood was not recommended.
Secondly, if wood sheeting is ok on the roof then asphalt shingles should also.
I would rather use all stone but need to look at mor build photos to get ideas.
Maybe a metal roof. The real stones I have are heavy.
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Old 11-01-2011, 12:32 PM
mrchipster's Avatar
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Location: Minneapolis, MN USA
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Default Re: Roof-thinking ahead

Quote:
Originally Posted by gtofani View Post
I know I am not ready yet but I am thinking ahead to the outside appearance of my build.
I see some guys use wood on the metal studded roof rafters.
Is this ok? I thought wood was not recommended.
Secondly, if wood sheeting is ok on the roof then asphalt shingles should also.
I would rather use all stone but need to look at mor build photos to get ideas.
Maybe a metal roof. The real stones I have are heavy.
I used cement board and steel studs within 12 inches of the flue, a metal superstructure and 4 ply half inch over the rest of the roof. Standing seam metal on top.

There is over a foot of ceramic and perlite between the outside of the oven and any wood so I am feeling quite fire proof.

Chip
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Old 11-01-2011, 10:20 PM
brickie in oz's Avatar
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Default Re: Roof-thinking ahead

Here is my ply timber and asphalt roof.
There is 2" of ceramic fibre on top of the oven and a foot of vermiculite, I doubt its going to burst into flames any time soon.
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Old 11-07-2011, 08:17 AM
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Location: Milton, Ontario
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Default Re: Roof-thinking ahead

I made trusses from 2 steel studs one inside the other, and concrete roofing tiles.

The only issue with concrete tiles is I will have a bit of fund closing the 'attic' to critters because the tiles are 'wiggly' on the underside.
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Old 11-07-2011, 10:12 AM
gtofani's Avatar
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Default Re: Roof-thinking ahead

I was considering using old slate from a barn over cement board. If I screw it on it should be ok. Or maybe even plywood over the cement board.
I do think that a wood roof would be safe from fire with the 3" blanket and vermiculite barrier.
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Old 11-07-2011, 10:30 AM
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Location: Milton, Ontario
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Default Re: Roof-thinking ahead

I screwed metal 'straps' horizontally across my metal trusses - no 'deck' of any type.

The guy who sold me the tiles told me you didn't need one. I can and have walked on my tiles and its plenty solid. Slate may need a deck, I don't know, but I'd stick with cement board.

I believe you are mistaken if you are thinking the fire risk come from the oven. It is more likely to come from the fact you are burning wood and have a short chimney. It just takes one ember to make its way onto a flammable roof and you are done.

Thats usually how forest fires burn down houses.

Anyhow, I've done plenty of asphalt roofs and never concrete. It looks pretty cool and should fit into the overall look of the building.
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Old 11-07-2011, 10:49 AM
gtofani's Avatar
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Default Re: Roof-thinking ahead

Good point on the danger coming from the chimney rather than the oven.
I may even go the route of covering the whole thing in stone as I have seen in the photos of other builds. I have plenty of time to figure it out.
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Old 11-07-2011, 12:13 PM
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Location: Milton, Ontario
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Default Re: Roof-thinking ahead

I was going to buy stone for mine. They have this 'real stone' stuff with is cut to thickness. I got quoted $4000 for my little oven. I told the guy for that amount of money I'll go pick stones off my fields!
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Old 11-07-2011, 03:21 PM
woods witch's Avatar
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Default Re: Roof-thinking ahead

Quote:
Originally Posted by gtofani View Post
I was considering using old slate from a barn over cement board. If I screw it on it should be ok. Or maybe even plywood over the cement board.
I do think that a wood roof would be safe from fire with the 3" blanket and vermiculite barrier.
That is very similar to what we did, if you want to check out our pics, here is the link
https://picasaweb.google.com/litwa.m...WoodFiredOven#
good luck!
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Old 11-07-2011, 04:54 PM
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Default Re: Roof-thinking ahead

I like the old wood beams sticking out, it gives me some ideas.
I still will build my framing from the steel studs but it would be nice to have the old style beams sticking out at the bottom corners and the peak.
Nice job on your oven.

I also noticed you were cooking with a tarp over your oven, did you have the insulation on already?

Last edited by gtofani; 11-07-2011 at 04:57 PM.
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