Member
· Västerbotten
· 872 posts
Today I had the chimney sweeper visit to inspect an installation of a fireplace. Most of it was okay, but he wanted me to cover a small existing wall stump with something he called a "firewall." "A 5 cm thick silicate-based board that is glued on" was his description of something that, according to him, was a simple solution.
So I have now googled a bit on the subject and found that there weren't many suppliers that had these thicker boards. Fire protection boards are available almost everywhere but seem to stay around 10 mm if I want to shop from local suppliers.
I found this: http://www.nordicheating.se/produkt...andskyddsskiva-silikat-5-cm,-1000x625-mm.aspx but if there are alternatives that might be available at a normal building supply store, it would be a bit more practical (if nothing else, cheaper in terms of shipping costs). Maybe they exist under other names?
Would it be okay with, for example, 4 layers (or similar) of thinner boards such as minerit/cembrit/fire protection boards? Can you screw up the boards, or do the screws pose a threat to fire safety as heat conductors?
Of course, I understand that you can build up the entire wall with bricks, but since the surface area is 2400x110x45, it seems like something I can't make look particularly nice.
So I have now googled a bit on the subject and found that there weren't many suppliers that had these thicker boards. Fire protection boards are available almost everywhere but seem to stay around 10 mm if I want to shop from local suppliers.
I found this: http://www.nordicheating.se/produkt...andskyddsskiva-silikat-5-cm,-1000x625-mm.aspx but if there are alternatives that might be available at a normal building supply store, it would be a bit more practical (if nothing else, cheaper in terms of shipping costs). Maybe they exist under other names?
Would it be okay with, for example, 4 layers (or similar) of thinner boards such as minerit/cembrit/fire protection boards? Can you screw up the boards, or do the screws pose a threat to fire safety as heat conductors?
Of course, I understand that you can build up the entire wall with bricks, but since the surface area is 2400x110x45, it seems like something I can't make look particularly nice.
Know-It-All
· Västra götaland
· 10 919 posts
If you have an "eldabutik" nearby, they can order a 50 mm thick calcium silicate board for you, which saves you the shipping cost...
Know-It-All
· Västra götaland
· 10 919 posts
Nah, I don't think you need to?
Member
· Västerbotten
· 872 posts
Good to know since these records are not included in their product range on the website! There is an Eldabutik in Skellefteå so it might be an alternative solution if there's nothing in Umeå.
S
sinuslinus
Träskalle
· Östergötlands län
· 6 013 posts
sinuslinus
Träskalle
- Östergötlands län
- 6,013 posts
https://www.bauhaus.se/brandmursplatta-100x122x5.html
It is 5 cm, however, you have to order it home but it only took a few days
It is 5 cm, however, you have to order it home but it only took a few days
Member
· Västerbotten
· 872 posts
I took a little trip today and checked with the hardware stores to see if anything could be ordered or if there were more names for the product that weren't obvious when Googling. A local company had "brandväggar" in stock for 1200 each. XL Bygg could order in "silikatskiva" for about 1500. It seems like that amount is what one has to accept.
Member
· Västerbotten
· 872 posts
I can now provide an answer after some phone calls, googling, and car trips:
The sheet was most advantageously purchased at a chimney firm that had some turnover of the material. I found a firm that had two pieces that were exactly the right dimensions and I also received some advice on how the material should be processed and installed.
However, when it came to the actual installation, I ended up in a situation that makes me feel a certain irritation regarding monopoly on inspections. The chimney firm said it was fine to screw the sheets, but the chimney sweep said it wasn't okay. So, to avoid causing unnecessary trouble, I simply had to go with what the chimney sweep said, so they dug out a special adhesive for me that was to be applied in the same way as tile adhesive.
The sheet was most advantageously purchased at a chimney firm that had some turnover of the material. I found a firm that had two pieces that were exactly the right dimensions and I also received some advice on how the material should be processed and installed.
However, when it came to the actual installation, I ended up in a situation that makes me feel a certain irritation regarding monopoly on inspections. The chimney firm said it was fine to screw the sheets, but the chimney sweep said it wasn't okay. So, to avoid causing unnecessary trouble, I simply had to go with what the chimney sweep said, so they dug out a special adhesive for me that was to be applied in the same way as tile adhesive.
Homebuilder
· Östergötland
· 388 posts
How much did you pay for the record you bought?
Homebuilder
· Östergötland
· 388 posts
Thank you! Now I have a rough idea of what it would cost us.
Member
· Västerbotten
· 872 posts
The leftover pieces (2 pieces) were 122x20x5 cm and I paid 400 kronor in total for these. The glue cost a hundred kronor for a liter or so.
Homebuilder
· Östergötland
· 388 posts
So kind of you. However, I live in Motala, so it's quite a distance, plus we haven't even built our house yet.S Stins said: