SIDERISE NXS | Nexus Fusion for spandrel panels

Siderise Nexus Fusion boards are produced using stonewool slab material which has been Euroclass rated A1 and is specifically formulated to a Siderise specification for use in this exacting application.

Stonewool is manufactured from volcanic rock that has melted in a furnace to temperatures in excess of 1500°C. The molten product is then spun into a wool-like substance that has excellent fire, acoustic and thermal properties.
The unique Nexus process takes this insulating material which is then cut into strips and rotated through 90 degrees so the fibres are perpendicular to the board surface.
Additionally, the strips are subjected to lateral compression which eliminates any gaps and produces a more homogeneous board with a substantially better rigidity than a standard stone wool slab of the same density. Whilst under compression the product is faced with an open filament net which both maintains the compression and aids handleability.


The Fusion board should be bonded on the net face to the glazing system.
Siderise maintains a close working partnership with major adhesive suppliers to ensure the compatibility of materials and attainment of optimum bond strengths.

Features and benefits:
European Fireclass A1 performance in its intended application
Tested in conjunction with Siderise Cavity Wall Fire Stop achieving a EI30 performance
Precision manufacturing and tight tolerances ensure that there are no gaps between boards, thus maintaining fire, thermal and acoustic performance
Removes the need for costly bespoke trays and the time-consuming process to install lightweight insulation