Achieve EI30 cheapest? Cold garage

[Kungen och 38 till]

I am going to build a cold garage for storing a farm tractor.
The walls will consist of 50x125 studs.
The facade consists of 22x100 tongue and groove.
(Purchased at a sawmill, hence the dimensions)

Due to distance to the building, I must meet fire class EI30.

Can EI 30 be achieved in the walls with an 11mm OSB and a 13mm gypsum board?
The walls will be uninsulated.
Or do I need to replace the OSB with something thicker?

 

[jonaserik]

A 13 mm plasterboard is fire class A30 (El 30), withstanding a fire for 30 minutes, 2 pieces = A60 minutes (El 60). Now it is clear that if you have an OSB against the fire source, it will ignite first, but it is the spread that is referred to with the fire resistance class and the distance to adjacent houses.

 

[Kungen och 38 till]

A 13mm plasterboard is fire-rated A30 (El 30), withstanding a fire for 30 minutes, 2 pieces = A60 minutes (El 60). It's clear that if you have an OSB facing the fire source, it ignites first, but the classification addresses the spread and distance to nearby houses.

Ok! My goal is to achieve EI30. Can this be done with a 13mm plasterboard and an 11mm OSB? Are there any more suggestions? I want to build cheaply and preferably avoid insulation in the wall.

 

[xLnT]

http://fsbsverige.se/dokument/6 Konstruktionslösningar.pdf