Pitched roof insulation under bearing construction with Eurothane G - mechanically fixed

The thermal insulation will be realised by a board of rigid Polyurethane foam (Eurothane G) with a core volume weight of ± 30 kg/m³.
Reaction to fire: A1 according to RD 19/12/1997, Class 1 according to BS 476 PART 7 and Euroclass F according to EN 13501-1.
The boards will be covered with plasterboard on the front side and on the other side with a "non-woven"-facing on mineral base.
The board is subject to a permanent quality control conducted by an acknowledged institute.
The production of the insulation boards is certified according to the ISO 9001:2000 standards.
The declared thermal conductivity coefficient λ_D = 0,023 W/mK.
The dimensions of the boards are 1200 mm x 2600 mm.
The installation of the aligned bearing structure needs to be done in compliance with the instructions of the manufacturers. The finishing of the joints, notches and corners will be done according to the techniques normally used for plasterboards.
The following dimensions have to be used: