Reflectashield TF 0.81 is a vapour permeable low emissivity membrane specifically designed to enhance the thermal performance of timber and steel frame structures. Reflectashield TF 0.81 is a non-woven polypropylene film laminate, providing excellent breathability, as well as secondary protection to the building during construction. The product is installed on the external face of the timber frame, foil side face out, similar to that of a traditional breather membrane but with added thermal benefits.
The A. Proctor Group are constantly reviewing their product portfolio to keep up with current legislation. The A. Proctor Group have re-tested Reflectashield TF at the National Physics Laboratory (NPL) resulting in an increase of the claimed thermal performance to 0.81 m2K/W R-value.
The resulting increase in thermal performance does not affect any of the high performance characteristics afforded by the use of Reflectashield TF 0.81.
Reflectashield TF 0.81 complies with the vapour resistance requirements set out by BS 4016, TRADA and the NHBC. The existing legislation requires a breather membrane to have a vapour resistance not greater than 0.60 MNs/g. Reflectashield TF 0.81 has a vapour resistance of 0.41 MNs/g.
The A. Proctor Group can provide a range of solutions, with U-values, down to as low as 0.17W/m2K in standard timber frame walling applications. Once Reflectashield TF 0.81 is applied to the walls, the primary wall covering should be installed within 3 months.
Reflectashield TF 0.81 must be covered as soon as practically possible on completion of installation. Any damaged areas should be repaired or replaced before completion.
Key Benefits
• R value 0.81 as tested by NPL.
• Competitively priced.
• Enhanced foil surface.
• Unique patented three layer composition.
• Low vapour resistance – complies with BS4016,TRADA and NHBC requirement.
• Water resistant.
• High strength to weight ratio.
• Improved thermal resistance.
• 1.45, 2.7 & 2.9 metre wide rolls.
• UK manufactured ensuring consistent supply.
• Custom printed material available on request.
Product Performance Specifications:
Thickness
0.55mm
Roll Size
1.45 x 50m or 2.7 x 100m
Material
Polypropylene Spunbond and Microperforated Aluminium Foil laminate
Certification
Minimum required: BM Trada Q Mark available from The A Proctor Group.
• Reflectashield TF 0.81 BM Trada Q Mark Certificate
• Reflectashield TF 0.81 BM Trada Q Mark Schedule
Technical Properties
• Mass per unit area: to be no less than 134g/m²
• Water vapour resistance: to be no greater than Sd = 0.083m when tested to EN12572
• Air permeability: to be no less than 11.4 m³/m².h.50Pa when tested to EN 12114
• Reaction to Fire: to be no worse than Class D when tested to EN 13501-1
• Water Penetration: to be no less than Class W2, aged and unaged, when tested to EN 1928
• Tensile Strength: to be no less than MD 230 N; CD 150 N when tested to EN 12311-1
• Tear Resistance: to be no less than MD 160 N; CD 160 N when tested to EN 12310-1
• Elongation: to be no less than MD 60%; CD 80% when tested to EN 12311-1
