SuperFOIL SFNC is the only non combustible multifoil available. Certified by BRE, SFNC is not merely flame or fire retardant, it’s totally non combustible and has achieved an A1 rating which is the highest rating under the latest European Fire Classification system. You can be confident in situations where you need fire resistance and insulation that SuperFoil SFNC is the product to use. Properties Length: 8.35m.Width: 1.2m.Roll size: 10.02m2.Thickness installed: 20mm.Weight per roll: 30kg.Thermal resistance - rValues: including air gaps.For roofs: 1.54m2K/W.For walls: 1.99m2K/W.For floors: 3.46m2K/W.Core rValue: 0.62m2K/W.Thermal conductivity: 0.0318W/mk.Layers: 3x layers. It is advised that contact temperatures are no more than 575C. Application Superfoil SFNC can be used in roofs, walls and floors. Using air gaps SFNC can achieve an rValue of 1.54 in pitch roofs and 1.99 in walls. Duet installation - Superfoil can be user over and under rafter in a 'duet' format to achieve even higher performance. Combi installation - Superofoil can be used with any other insulation including mineral wool or foam board to achieve the required insulation uValue - please call us on: 01752 692206 to discuss. Installation Over rafter: Roll out SFNC SuperFOIL over rafters. Staple at least 500mm or as conditions dictate and cover joints with SuperFOIL reinforced tape, overlap widths 75mm (min 50mm, max 100mm). At the eaves cut SuperFOIL around the rafters and seal to cavity wall insulation or wall plate to create airtight envelope. Fix battens parallel with the rafters and apply breathable roof underlay according to manufacture guidelines. Fix roofing battens and tiles according to manufacturers guidelines. Under rafter: Roll out SuperFOIL, starting along the top of the roof. Batten horizontally over rafters. Staple at least 500mm or as conditions dictate and cover joints with SuperFOIL reinforced tape, overlap widths 75mm (min 50mm, max 100mm). At the bottom of the roof pitch, staple the SFNC SuperFOIL directly onto the timber wall plate to create airtight envelope. Fix battens across the rafters and ensure air gap between SuperFOIL and the plasterboard.