Tronsole®
type Q

Load-bearing impact sound insulation element for connecting spiral staircases to staircase walls. The element transfers positive shear forces.

Technical approval

Rotatable dowel for winding staircase

Cross-sectional view of installation

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Outstanding soundproofing
SSt III to VDI 4100 is achieved in a standard apartment building with all Tronsole® types − and also DEGA class A with certain product types
Reliable and comparable sound attenuation values
Acoustic characteristic values of Schöck Tronsole® tested to DIN 7396; describes a method of measuring impact sound insulating elements for solid stairs and landings and enables comparison of decoupling elements
Acoustic characteristic values tested to DIN 7396
Evaluated impact sound pressure level difference ∆L*w, landing ≥ 28 dB
Technical approval
Planning reliability with DIBt (German Institute of Building Technology) approval Z-15.7-311; therefore satisfies compulsory approval for dowels
Certified fire protection
Satisfies fire protection requirements up to R 90 (up to joint width 65 mm); use in rescue routes confirmed by fire performance assessments
Extended application range
Can also be used for joint areas up to 100 mm and 120 mm thick stair slabs
Adaptation to stair gradient
Rotatable load-bearing element which is secured in place by tongue-and-groove joints makes installation easier