• Building Regulations 2000 Approved Documents L1 & L2.
  
• Building Standards Part J Sept. 2001
  
• BRE publication Thermal Insulation: Avoiding the risks.
  
• BRE Paper IP12/94 Assessing the Condensation Risk and Heat Loss at
  Thermal Bridges Around Openings.
  
• BS EN ISO 6946 : 1997 Building components and building elements -
  Thermal resistance and thermal transmittance - Calculation method.
  
• British Standard References: BS 5250 Control of Condensation in Buildings.

FBreather-Foil FR

• Emissivity measured by National Physical Laboratory.
  
• Thermal resistance measured by Independent Test Laboratories.
  
• Tested to BS EN 12153:2000
  for water tightness and air
  permeability.
  
• Manufactured in the UK and
  meeting the requirements of
  BS EN ISO 9002.