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barajag said:
Ps: double drywall with stone wool withstands fire for 60 min. A chipboard in how many seconds?
An interior wall consisting of 70mm studs at cc600, with a 12mm "wood board" (I guess it means gypsum or chipboard) withstands class EI30. Now these are exterior walls and not an interior wall, but it's still not particularly difficult to achieve, for example EI30, which is the requirement I have for my garage 2.5 meters from the house.

http://www.isover.se/byggkonstrukti...sade+konstruktioner/30+minuters+brandmotstånd
 
Yrrol said:
people are completely crazy about this double plasterboard thing...and even double double plasterboard...and whatever else is proposed. When I go into the garage I want the floor space to put things on, not thick walls.

I heard someone say that the density of plasterboard is so good that these walls feel cold if you touch them... in other words, you have to add more heat to try to compensate for that... he also thought the same about light insulation...
-masonite or something else has more air in it and therefore doesn't feel as cold...

Now I'm not claiming he was right. I'm going to ask some manufacturers of OSB Masonite and others to hear if they can say why one should avoid plasterboard...

I think plasterboard is a trendy thing right now and that we only have knowledge of the plasterboard and not the other materials that probably resist fire and other stuff pretty decently anyway...

Besides, I didn't say I was going to have bare particle boards either...
-so there... :)
Spot on regarding that most have no knowledge of other materials regarding fire than plasterboard. Probably because plasterboard is very cheap and a non-living material.

But I'm still conservative. Plywood and plasterboard hold up in all weathers.:D
Then when you build the next garage you can make it 12mm bigger, then you won't feel like it steals space. (Joking aside):)
 
Yrrol said:
so, is plasterboard so drastically more protective against catching fire?
Yes :)
And how much floor space do you lose with double boards, must be almost non-existent.

And if you want to put on the walls in the garage, or if you want it fireproof and the ability to screw things onto the walls without needing to plug or use expanders, then OSB or chipboard is good behind the plasterboard.
 
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nail on your plyfa+gypsum....

best regards
estwing
 
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