MasterLine 8 SoftTone

MasterLine 8 SoftTone

Sound attenuating parallel outward opening window

The comfortable living space

MasterLine 8 SoftTone is the sustainable architectural solution for natural cooling and ventilation in urban environments. The parallel opening window units allow maximal ventilation and cooling, the Softone components inside the window reduce the noise nuisance. This results in a fresh and healthy working and living experience in the heart of a vibrant city.

Focus application field for this solution are the noisy city centers and living space in close proximity to highways, railways and airports. MasterLine 8 SoftTone is a more sustainable, affordable and especially the low maintenance alternative to mechanical ventilation and comfort cooling.

Technical information


Min. Visible width frame: outward opening20 mm 
Min. Visible width frame-vent: outward opening144 mm 
Min. Visible width T-profile47 mm 
Max. height vent2600 mm 
Max. width vent1700 mm 
Overall system depth frame237 mm 
Overall system depth vent161 mm 
Rebate height27 mm 
Min. Glass thickness4 mm 
Max. Glass thickness54 mm 
Min. Glass thickness vent4 mm 
Max. Glass thickness vent54 mm 
Glazing methodDry glazing with EPDM or neutral silicones  


Air tightness max. test pressure4 (600 Pa)
Water tightnessE1200 (1200 Pa)
Wind load resistanceC5 (2000 Pa)
Acoustic performanceclosed: Rw 42 (-2,-4) dB 250mm opened: Rw 11 (0,-1) dB dB
Thermal insulation (Uf)1.4 W/m²K

Opening elements

  • Outward Opening ParallelOutward Opening Parallel