Water & vapour proof SuperFOIL SFTV is also a foil radiant barrier that will reduce solar gain in summer and improve insulation in winter. SFTV's reflective properties add to the overall uValue of the building fabric.To achieve the maximum energy performance in new build and retrofit projects, SFTV makes an ideal 'airtight' layer suitable for the entire building envelope.If you are looking to buy SuperFOIL SFTV by Boulder Developments, Your can purchase with confidence through Online Insulation, knowing that your order is very important to us.Key Features: SFTV is waterproof and resists the passage of moisture through walls, floors and ceilings. Installing SFTV improves the airtightness of the building. SFTV is a radiant barrier it can be used to enhance thermal performance U-values in both new build and renovation projects. SFTV is vapour proof and restricts the passage of warm moist air from within the building from permeating into the structure or the roof. SFTV is suitable for roof and wall applications. SFTV helps to prevent mould and damp. SFTV reduces both convective and radiant heat lossAdditional Information:Water Vapour Resistance - 1200MNs/g Resistance to water penetration - W1 Flexibility at low temp. - -40c Tensile Properties - Length (After Ageing) 238/227 N/50mm Tensile Properties - Width (After Ageing) 111/100 N/50mmThermal Performance:Core - N/A Roof (inc. air spaces) - 0.95 R Value Wall (inc. air spaces) - 1.42 R Value Floor (inc. air spaces) - 2.80 R Value Emittance - 0.03Fire Performance:Reaction to Fire (Euroclass) - Class E (behind plasterboard)
