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eurekaWALL™ System Fire-Rating FRL (mins) (Test Ref.) Construction Detail Description (EurekaWall™ membrane plus) Acoustic RAting EWall 1 N/A EurekaWALL™1 13mm Boral standard core plasterboard Rw = 35dB Rw + Ctr = 32dB Non Load Bearing –/120/90 (basis FCO-2110) EurekaWALL™1 13mm Boral FireStop™ plasterboard Rw = 36dB Rw + Ctr = 33dB Non Load Bearing EWall 2 (1) –/120/90 (basis FCO-2110) EurekaWALL™2 As for EWall 1 with FireStop™, 20mm separation, independent stud wall, layer of 13mm Boral standard core plasterboard. Rw = 56dB (2) Rw + Ctr = 47dB (2) (Insulation of 75GW14 or 75PE14) (3) Non Load Bearing EWall 3 (1) -/120/90 (basis FCO-2110) EurekaWALL™3 To each side an independent stud wall, layer of 13mm Boral FireStop™ and 20mm separation. Rw = 63dB (2) Rw + Ctr = 49dB (2) (Insulation of 75GW14 or 75PE14) (3) Non Load Bearing EWall 4 (1) -/120/90 (basis FCO-2110) EurekaWALL™4 To one side an independent stud wall, layer of 13mm Boral FireStop™ and 20mm separation. To the other side, furring channels and layer of 13mm Boral FireStop™. Rw = 55dB (2) Rw + Ctr = 43dB (2) (Insulation of 75GW14 or 75PE14) (3) Non Load Bearing Note: (1) Max wall height is 3000mm based on 64CS50 studs @ 450mm centres with noggings or 2700mm based on 64CS50 studs @ 600mm centres with noggings. (2) Acoustic ratings based on independent stud wall cavity of 84mm. (3) 75GW14 = 75mm glasswool blanket/batt, nom 14kg/m3. 75PE14 = 75mm polyester blanket/batt, nom 14kg/m3.