Hello, I'm planning to utilize the attic in my townhouse as a cold storage. The floor is concrete, so I need to hire a company to create an opening down to the living area.
I've talked to the National Board of Housing, Building and Planning, and the building committee, and they say that there should be a fire-rated wall EI30 against the neighbor, and an attic hatch rated EI30.
The building committee says it should be sufficient to frame against the neighbor and install single gypsum board on both sides to meet EI30.
As seen on this page under partition walls
http://www.isover.se/sw29658.asp
How do I build this partition wall? which is non-load-bearing, in the simplest and cheapest way?
I've talked to the National Board of Housing, Building and Planning, and the building committee, and they say that there should be a fire-rated wall EI30 against the neighbor, and an attic hatch rated EI30.
The building committee says it should be sufficient to frame against the neighbor and install single gypsum board on both sides to meet EI30.
As seen on this page under partition walls
http://www.isover.se/sw29658.asp
How do I build this partition wall? which is non-load-bearing, in the simplest and cheapest way?
I'm not quite sure what level you're aiming for here; it is essentially a standard partition wall, like any other, that you build. The choice you make is which material you use, according to the typed solutions you refer to, or equivalent for example Gyproc. However, I'm not on board with the building committee's interpretation, the separation between residential houses should be carried out in EI 60, not EI 30. A separation in EI 30 is probably not enough to protect against a fire in the neighbor's attic before the fire department has brought the fire under control, but of course, it depends on how easy it is to get in through the roof, etc.
Depending on the roof structure, you should be very careful to get a connection to the outer roof, for example, directly to the sheathing under tiles. If you have a ceiling that is shared between you and your neighbor (not likely if the attic hasn't been converted before) then a fire can sneak up above this and then across the separation.
I would choose a wood or steel stud construction and double gypsum, possibly some chipboard. Depending on the appearance of the roof, maybe also supplement with a rated soft joint in the seam.
Depending on the roof structure, you should be very careful to get a connection to the outer roof, for example, directly to the sheathing under tiles. If you have a ceiling that is shared between you and your neighbor (not likely if the attic hasn't been converted before) then a fire can sneak up above this and then across the separation.
I would choose a wood or steel stud construction and double gypsum, possibly some chipboard. Depending on the appearance of the roof, maybe also supplement with a rated soft joint in the seam.
The reason the building committee said EI30 is that there is a concrete roof down to the living area. But as they mean, if there is a fire in my living area, it should first go through my fire hatch then through the partition wall EI30+EI30 =EI60
No, the attic has not been furnished previously. Is steel frame construction easy to work with?
Just found this info from the rescue agency:
If the attic space cannot be furnished for residential purposes, the attic space can be divided with walls of EI 30, if the attic floor is also EI 30. The row house issue is complicated by the fact that different requirements are set if the connected small houses are placed on one and the same plot or on several plots. Row houses on a shared plot are counted as a small house with several apartments, whose attic then does not need to be separated.
/Happy amateur
No, the attic has not been furnished previously. Is steel frame construction easy to work with?
Just found this info from the rescue agency:
If the attic space cannot be furnished for residential purposes, the attic space can be divided with walls of EI 30, if the attic floor is also EI 30. The row house issue is complicated by the fact that different requirements are set if the connected small houses are placed on one and the same plot or on several plots. Row houses on a shared plot are counted as a small house with several apartments, whose attic then does not need to be separated.
/Happy amateur
To go from EI30 to EI60, it only requires one more layer of plasterboard on each side, so I would probably do it anyway. Steel studs are not my department, but if it’s in trä, 45X70 mm studs work well. 45X45 is enough, but they tend to be propellers, so I'll pass on them.
You can build with a 45 mm stålregel if you want. Projekteringsvägledning
Many different messages from authorities and insurance companies, but it seems most sensible to build a wall against the neighbor in EI60 standard, because if I only build with EI30 and a fire occurs in the attic, it will probably spread quickly.
And a fire hatch with EI30 won't help the neighbor much then.
And a fire hatch with EI30 won't help the neighbor much then.