Natural Sarking & Sheathing Tongue & Groove Board

Information

Application

Rigid sarking and sheathing board made
from natural wood fibres, for pitched roof and wall constructions

Benefits

• Excellent thermal insulation value
• Prevents thermal bridging
• Helps to reduce overheating in summer
• Completely breathable
• High compressive strength
• May be fully exposed for up to 4 weeks in
  a temporary position
• CE marked
• Sustainable, re-newable, natural resource

Dimensions

Board size 2500mm x 600/750mm,
thickness 22/35/52mm

Properties

• K value 0.049W/mK
• Density 270kg/m³
• Min compression strength 200kPa
• Fire rating EN 13501-1 Class E

 

Timber Frame Guide

Warm Pitched Roof – Insulation between & over rafters
New Build or Re-roofing

Natural Insulation	U-Value 0.31	U-Value 0.28	U-Value 0.24	U-Value 0.22
NaturePro Hemp Insulation or Sheep’s Wool Insulation Between Rafters	100mm	100mm	150mm	150mm
NaturePro Wood Fibre Sarking & Sheathing T&G Insulation Board	35mm	52mm	35mm	52mm

 Rafters 100/150mm depth @ 600 centres