They are assembling the roof insulation. The two layers of wool, the vapor barrier and spacers of wood (which keep the insulation in place). Now missing the plasterboard to finish. The steel beam will be covered with insulation. Necessary for condensation. The insulation wool rock is ROXULL .
and externally are mounting the aluminum panels. A company of Trelleborg. Aluminum fits well if it is not below zero. Otherwise you have to heat it before it bends. Galvanized gutters.
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