Your specification
See below for your natural fibre insulation specification.
For more detailed information and more accurate U-value calculations please take this specification to your chosen supplier. See asbp.org.uk/group/natural-fibre-insulation for a list of NFI suppliers.
-Exterior
-Single ply membrane
-18mm T&G ply boards
-50mm min. well ventilated void created by battens
-Breathable membrane
-147mm joists @ 400mm centres, fully filled with Natural fibre insulation
-11mm OSB board/vapour control layer
-25mm battens,
-12mm plasterboard
-Interior
-Extérieur
-Membrane monocouche
-Panneaux contreplaqués T&G de 18 mm
-50 mm min. vide bien aéré créé par les lattes
-Membrane respirante
-Solives de 147 mm à 400 mm d’entraxe, entièrement remplies d’isolant en fibre naturelle
-Panneau OSB de 11 mm/membrane pare-vapeur
-Lattes de 25 mm,
-Plaque de plâtre 12mm
-Intérieur
The specification above will achieve a U-value of 0.274 W/m2K
Pour cette spécification R = 3.65