Hello, my attefallshus is closer to the neighbor than 8m (about 7m), therefore it needs to meet EI30 according to boverkets regulations.
The planned construction is:
21mm outer panel
28mm battens
4.5 mm windstopper board, cembrit or similar, alternatively 9mm (cannot determine the fire requirements there)
120mm studs insulated with about 80mm polyurethane foam
11mm inner panel
How can I make this EI30 in the simplest way?
I assume one must also consider the eaves etc.? Now, this is on the gable end so any boards can be extended all the way up.
Thank you in advance for the response.
The planned construction is:
21mm outer panel
28mm battens
4.5 mm windstopper board, cembrit or similar, alternatively 9mm (cannot determine the fire requirements there)
120mm studs insulated with about 80mm polyurethane foam
11mm inner panel
How can I make this EI30 in the simplest way?
I assume one must also consider the eaves etc.? Now, this is on the gable end so any boards can be extended all the way up.
Thank you in advance for the response.
That might be enough, not entirely sure though.
But is there an option to use rock wool instead of the foam (or maybe it's the same fire resistance?), and then a gypsum or wood board on the inside as well, and you are definitely all set.
But is there an option to use rock wool instead of the foam (or maybe it's the same fire resistance?), and then a gypsum or wood board on the inside as well, and you are definitely all set.
https://www.traguiden.se/om-tra/byg...rakonstruktioner/avskiljande-formaga/exempel/
Here you can read how ridiculously easy it is to achieve ei30 on an exterior wall (nearly impossible not to do it)
But it's a bit interesting in your case if you think that the insulation theoretically speeds up the fire (maybe?). No idea how to calculate in that case.
Here you can read how ridiculously easy it is to achieve ei30 on an exterior wall (nearly impossible not to do it)
But it's a bit interesting in your case if you think that the insulation theoretically speeds up the fire (maybe?). No idea how to calculate in that case.