Top, bottom and side cover panels as well as doors are made of 50 mm double walls, with the inner and outer walls consisting of steel sheet and a mineral wool thermal insulation filler with a density of 90 kg/m³.
Pokrovi stropa, dna in sten ter vrata so dvostenske izvedbe, debeline 50 mm, z notranjo in zunanjo steno iz jeklene pločevine in vmesno toplotno izolacijo iz mineralne volne z gostoto 90 kg/m³.