Flat roof insulation EUROTHANE Bi3 on concrete deck with bonded single ply waterproofing systems: bitumenstock

The thermal insulation will be realised by a board of rigid polyurethane foam (EUROTHANE Bi3) with a core volume weight of ± 30 kg/m³.
The boards will be faced on both sides with a bituminised glass fleece.
The boards will have been subjected 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 = 0,027 W/mK for thickness › 60 mm and 0,028 W/mK for thickness ≤ 60 mm.
Pressure resistance with 10 % deformation: > 120 kPa (1,2 kg/ cm²).
The dimensions of the boards are 600 mm x 1200 mm.
The insulation boards are fully bonded onto the vapour control barrier with a matching cold glue. The boards are installed staggered and with closed joints. The single ply waterproofing system should be applied onto the insulation boards directly after their installation. The instructions of the waterproofing manufacturer should be followed.
The necessity of a vapour control layer will be determined by a calculation or by the Technical Information 215 "HET PLATTE DAK" (the flat roof) of the WTCB. The specific guidelines incorporated in the Technical Approval of the insulation material is applicable, if unavailable use the guidelines of the note 215.
The following dimensions have to be used: