Siderise MC Mullion Cover
Siderise MC Mullion Overclad is a decorative mullion liner for Acoustic or Acoustic & Fire enhancement of Curtain Walling Mullions.
External mullion sound insulation
MC Mullion Cover provides a means to improving sound insulation of curtain wall mullions that abut room partitions. Fitted on the external face of mullions, it offers a solution where mullion inserts are impractical. The covers are suitable for use on both stick and unitised curtain wall systems, for mullion sizes from 80mm to 250mm. An acoustic and fire rated version is available, to improve the fire resistance of mullions up to 205mm wide.
MC Mullion Cover has been tested to EN 1366-4:2021 for up to 2 hours fire resistance (integrity and insulation).
MC Mullion Cover can reduce room-to-room sound transmission, improving privacy and preventing disturbance from neighbouring rooms. Tested in accordance with BS EN ISO 10140-2:2021.
MC Mullion Cover is used to treat existing mullions. The acoustic only version is available in sizes 80mm-250mm (no fire resistance). The acoustic and fire version is available in sizes 80mm-205mm (up to 2 hour fire resistance.
Siderise MC Mullion Cover paint inspection criteriaFAQs
Get quick answers to common queries or contact our team for more advice. Your questions answered.
The Siderise MC Mullion Cover System is an external treatment to the mullions, therefore simple to fit and suitable for use on both new build and fit out projects. Detailed step-by-step fitting instructions can be viewed on our installation documents.
The male and female cover plates within the system are available in two stocked colours: white RAL 9016 and dark grey RAL 7016. It is also possible to supply any RAL colour; contact the SSPL technical team to discuss your requirements.
The Siderise MC Mullion Cover System is designed for use on mullions only, where partitions abut. This is because the system relies on protrusions either side of the mullion, such as the partition edge and glazing, for correct fitting.
It is supplied in sets that will treat both sides of the mullion up to 3m; therefore, if the treatment height is more than 3m, additional sets can be purchased and would be installed with a horizontal joint in the cover plate. Please contact the SSPL technical team, who will be able to provide you with further guidance.
Standard details are available in pdf format. Please contact the SSPL technical team for the CAD drawings in Dwg or Dxf format.
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