Dear Khun Prateep,
1) Semi-rigid mineral wool thermal insulation from “Thermafibre” or equivalent
- ThermalRock S120.128
- Density 128 kg/m3
- Thickness 100 mm
- Thermal resistance 2.9 m2K/W
- Non-combustibility (BS 476 part 4, relevant to ASTM E136)
- Flame spread = 0 (ASTM E84)
- Smoke developed = 5 (ASTM E84)
2) Mineral wool fire safing insulation from “Thermafibre” or equivalent
- RockSafe Pro
- Density 110 kg/m3
- Thickness 100 mm
- Thermal resistance 2.9 m2K/W
- Fire resistance 2 hr (BS 476 part 20) linear gap seal at floor/wall junction.