• 312 mm EUROPERL PERLITE U value = 0.12
  • Requirements in BR 95 & BR-S 98 U = 0.20
  • Requirements for summer houses U = 0.30
  • Diffusion open underroof
  • Europerl Perlite 70 kg / m³, l D class 42 mW / m ° C.
    (DS 418.6 edition, Apr. 2002)
  • Rafter
  • Eco Steam Brake B2
  • Formwork
  • Minimum class 2 cladding, such as 15 mm list ceiling
  • Roof insulated with EUROPERL PERLITE
  • This construction provides significantly better insulation than the requirements of the building regulations.
  • Roofing must meet the fire technical requirements for a T-roofing.
  • The underroof can be a 19 mm wax treated diffusion open soft wood fiber board
    groove & feather
  • The rafters can have a dimension of 45 x 195 mm + 45 x 95 mm with c-c spacing 900 mm
  • The construction is legal if it is adjacent to non-utilizable roof space according to BR-S 98 & BR-95.
  • The requirement for BD building part 60 in connection with fire section walls can be fulfilled if a 13 mm plasterboard + 15 mm is installed underneath