Aardvark
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Living in soggy 22 and still wondering what's going on.
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Post by Aardvark on Apr 1, 2023 12:08:24 GMT 1
I am looking for an alternative to the pink fire resistant plasterboard (Plaque de platre ignifuge). I need to finish off a section of dry lining that is over an insert woodburner. It appears that from the regs it should be a fire resistant material. I have followed the regs to the letter with the rest of the installation but this last section is a problem. I only need a piece about 3 feet by 4 feet but all I can find advertised is full 3 x 1.2 metre sheets priced at nearly €40 a pop. If I had money to waste I would buy one and break off a chunk to take home. Does anyone know of a sheet material that I could use instead? Ideally maximum 10mm thick and not too heavy to lift on my own. I will have to cut a section out of the middle to provide an access door to allow flue liner replacement in the future. I thought of stainless steel but a piece that size will be even more expensive than the pink placo.
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mysty
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Post by mysty on Apr 1, 2023 13:50:56 GMT 1
Red hollow brick with a coat of fire resistant plaster might work but may work out as exspensive. Or try an ad on one of the forums up your way looking for an offcut.Someone will have a bit lying about.
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Aardvark
Non-gamer
Living in soggy 22 and still wondering what's going on.
Posts: 2,172
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Post by Aardvark on Apr 1, 2023 16:15:27 GMT 1
Your input is much appreciated but "no cigar". It would need a substantial base to build even lightweight beton cellulaire blocks up on, I have only a length of the tin stuff that the rest of the placo is fixed to beyond. I was hoping to find something thin that could be applied in the same way as plasterboard. A material that would be easy to install a couple of off the shelf vent panels to let additional hot air into the room. And below these vents would be some sort of removable section for later access.
Local forum? Not much hope. Poor as church mice here or rich enough to pay someone else to worry about it.
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mysty
Member
Posts: 1,298
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Post by mysty on Apr 1, 2023 18:22:08 GMT 1
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Post by pcpa on Apr 1, 2023 19:54:24 GMT 1
Better but still a rip off. Placoflamme, hydrofugé & acoustique have always been so in France. I brought over 80 sheets from the UK for the hôtel conversion and in doing so saved myself over €2000  The price in the UK then was £5 a sheet for standard and £6 a sheet for the others, not 4 times the price. And guess what was written on it? Medd een Frohnce by St Gobain  Thats right they make the same product, transport it all the way to the UK and sell if for one fifth of the price that they do in France, only difference as it was 2440 and not 2500 long so they even incurred higher manufacturing costs on lower volumes. I wish that I could suggest something Aardvark, you could ask at Bricodepot if they have any damaged sheets, they usually photograph them and let you have it for free. The only other thing would be asbestos, that you can grow your own, you just need some small offcuts and to put them outside in an accessible and visible place on your property and o and get on with something else, in no time at all the pile will have grown and you will likely have some half or even full sheets  |
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Aardvark
Non-gamer
Living in soggy 22 and still wondering what's going on.
Posts: 2,172
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Post by Aardvark on Apr 1, 2023 20:36:30 GMT 1
That's not fire retardant. Even if I paint it pink. |
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mysty
Member
Posts: 1,298
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Post by mysty on Apr 1, 2023 21:36:40 GMT 1
That's not fire retardant. Even if I paint it pink. If you click more info on it this is the inglish translation. Now where is the flippin cigar 😃 Its fire performance is reinforced with a reaction to fire of type "F" for partitions behind a heat source (stove, fireplace). |
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Post by pcpa on Apr 2, 2023 8:21:39 GMT 1
Its not ignifuge, it has a paper that is class M0 meaning that it will burn but not propogate fire, the same rating as the Muraspec commercial vinyl that I use.
Fire rated plasterboard is rouge for a very simple & good reason, to be identified as such, that stuff isn't.
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mysty
Member
Posts: 1,298
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Post by mysty on Apr 2, 2023 8:31:10 GMT 1
I have never used it but unless I'm wrong it says it can be used around wood burners.
Are you saying bricodepots ad is wrong and misleading.
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Post by annabellespapa on Apr 2, 2023 9:41:25 GMT 1
Try Metal Service in Lamballe, just up from Point P and the new Lidl, they may have an off cut you could buy, they used to be on the road from Jugon Les lacs to Dolo. I would go for the cheaper galvanised metal.
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Aardvark
Non-gamer
Living in soggy 22 and still wondering what's going on.
Posts: 2,172
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Post by Aardvark on Apr 2, 2023 11:16:37 GMT 1
Stainless sheet was one of my first thoughts. I have used a couple of stainless pieces folded 90 degrees as uprights either side of the insert and a large panel above might fit in quite well esthetically. Those two small pieces stung me €90 so a big piece would be well over €100. (from a metal stockist a few doors from Brico Depot near Morlaix)
Flat asbestos ciment sheet would suit but it is ugly rough and very challenging to keep paint stuck to it. I think I will be biting the bullet and going for a sheet of the pink stuff and leaving 2/3 of it behind in the car park.
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Post by pcpa on Apr 2, 2023 16:15:28 GMT 1
I have never used it but unless I'm wrong it says it can be used around wood burners. Are you saying bricodepots ad is wrong and misleading. I am saying "Its not ignifuge, it has a paper that is class M0 meaning that it will burn but not propogate fire"
Chocolate can be used around woodburners but it wont be pink or carry the NF marking.
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Post by pcpa on Apr 2, 2023 16:22:59 GMT 1
Aardvark I thought of a solution for you today, a bit of lateral thinking, hopefully you might have some of the material alrady to hand.
Use expanded metal mesh and then finish it with either mortier refractaire or fire rated expanding foam, I have lots of cans of the latter left over which go off in storage & will be happy to send a couple to you like I did with the PU adhesive, you will need a pro foam gun though or be able to borrow one.
I might even be able to help with that as well, if I can find them among all the stuff stored in removal boxes in the roulottes I have some unused cheap Chinese ones that I bought to use as disposable items if I needed for instance some fire rated foam and my other guns already had other cartridges attached.
They work well & continue to if used every couple of weeks, if not the contents go off in the gun & you dont want to try changing a cartridge on one unless you want to be entombed!
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mysty
Member
Posts: 1,298
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Post by mysty on Apr 2, 2023 18:46:29 GMT 1
I have never used it but unless I'm wrong it says it can be used around wood burners. Are you saying bricodepots ad is wrong and misleading. I am saying "Its not ignifuge, it has a paper that is class M0 meaning that it will burn but not propogate fire"
Chocolate can be used around woodburners but it wont be pink or carry the NF marking.
No idea why you mentioned chocolate but the boards are marked NF. |
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Aardvark
Non-gamer
Living in soggy 22 and still wondering what's going on.
Posts: 2,172
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Post by Aardvark on Apr 3, 2023 10:16:49 GMT 1
Aardvark I thought of a solution for you today, a bit of lateral thinking, hopefully you might have some of the material alrady to hand. Use expanded metal mesh and then finish it with either mortier refractaire or fire rated expanding foam, I have lots of cans of the latter left over which go off in storage & will be happy to send a couple to you like I did with the PU adhesive, you will need a pro foam gun though or be able to borrow one. I might even be able to help with that as well, if I can find them among all the stuff stored in removal boxes in the roulottes I have some unused cheap Chinese ones that I bought to use as disposable items if I needed for instance some fire rated foam and my other guns already had other cartridges attached. They work well & continue to if used every couple of weeks, if not the contents go off in the gun & you dont want to try changing a cartridge on one unless you want to be entombed! I do enjoy a bit of lateral thinking and your proposal could well work in this situation.
I used up all my offcuts of metal mesh trying to close up the gap at the top of the chimney around the flue. The cement kept dropping through the gaps in the mesh. I ended up using car body filler that I had left over from my Transit days. I don't know if it held up or not. I haven't felt like going up there again since. I have a full can of fire foam to hand (€18!) but I don't think my skills are up to getting a smooth paintable wall finish on it once it has set. Probably OK if the mrs. wanted a golden turd look. Sincere thanks for the offer of the fire goop, and the brainstorming.
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