A fireproof back wall

Uve had first told he needed a sturdy wall behind/above the boiler to screw his artwork to, so I got some 12 mm OSB to match the 12 mm Gyprock, but then he told it would be better to have a fireproof wall there. So I figured I’d get some Fermacell. When I asked Uve where to get that he told me he did not know the material, so I started a little search.

In deed, it is not as commonly available as back in the Netherlands, but in the end I found out good old Puu Market around the corner had it available.

So I got a piece and made some strips to put behind the boiler. Forgot to make pictures.