Rockspan Extra

Rockspan Extra is an external sandwich wall panel with a through‑fix joint detail and a steel face with a choice of flat, satin line or V‑Groove profiles. The panels can be installed horizontally or vertically to support varied façade design requirements.

Stone wool core in a variety of thicknesses
Wide range of colours available as standard
Suitable for vertical or horizontal façade installation

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Technical Information

Rockspan Extra offers a comprehensive set of technical characteristics, including precise product tolerances, high thermal performance, detailed weight specifications, acoustic and fire performance, a variety of panel options, and multiple coating choices.

Certification and Test Reports

Euroclad Group systems are tested and certified to achieve compliance with regulatory requirements. The classification report for the Eurobond panel A2-s1,d0 Euroclass rating to EN13501-1:2018 can be found here. For any other fire performance or test data, please contact our Technical Team.

Product Tolerances

Product Tolerances to EN14509:2013

Tolerances for Rockspan Extra
	Rockspan Extra
Panel Length (≤ 3 metres)	± 5mm
Panel Length (> 3 metres)	± 10mm
Panel Width	± 2mm
Panel Thickness	± 2mm
Facing Squareness	± 2mm
Corners (Leg Length)	± 2.5mm
Corners (Angle)	± 1.0°
Flatness	± 1.5mm from theoretical flat plane over a distance of 700mm
Joint Gap	± 2mm

Thermal Performance

U value @ 10°C (BS EN 14509:2013) / Thermal Performance - W/m²K

Thermal Performance for Rockspan Extra
Core Thickness (mm)	75	100	125	150	175	200	240	300
Rockspan Extra	0.53	0.41	0.33	0.28	0.24	0.21	0.18	0.14

Weights

Panel Weight per Square Metre (kg)

Weights for Rockspan Extra
Core Thickness (mm)	75	100	125	150	175	200	240	300
Rockspan Extra:
Weight (0.5mm/0.5mm)* kg/m²	16.42	19.30	22.17	25.05	27.92	30.80	35.40	42.30
Weight (0.5mm/0.7mm)* kg/m²	17.59	20.47	23.34	26.22	29.09	31.97	36.57	43.47
Weight (0.7mm/0.5mm)* kg/m²	17.59	20.47	23.34	26.22	29.09	31.97	36.57	43.47
Weight (0.7mm/0.7mm)* kg/m²	18.77	21.64	24.52	27.39	30.27	33.14	37.74	44.64

* Internal/External steel face gauge thickness

Acoustic Performance

For information on acoustic performance contact the Technical Team.

Fire Performance

Rockspan Extra offers a Euroclass A2-s1, d0 classification for Reaction to Fire when tested and classified to BS EN 13501-1:2018.

Rockspan Extra can also offer fire resistance performances from 60 minutes up to 4 hours Insulation and Integrity (to BS EN 1364-1:2015) depending on thicknesses and orientation. Specific performances should be verified by our Technical Team on a project-by-project basis, to the correct standards.

Panel Options

Rockspan Extra sandwich wall panel is an easy to install external solution, offering reaction to fire performance of Euroclass A2-s1, d0 when tested and classified to BS EN 13501-1:2018.

The BS EN 13501-2:2016 fire resistance performance of panels within Rockspan Extra is dependent on panel thickness, orientation and method of assembly.

Rockspan Extra is available with either 0.5mm or 0.7mm internal liner.

Rockspan Extra Panels are available with a V-Groove profile option, roll formed into the external steel face of the panel at the point of manufacture. This is available across the Rockspan Extra. The V-Groove profile simulates an interlocking panel joint to create a distinctive grid design.

Please contact our Technical Team for specific performances and further information.

Coatings

Rockspan Extra external wall panel is available with Colorcoat Prisma® in a variety of colours as the standard external coating option. Tata Steel Colorcoat Prisma®, Tata Steel Colorcoat PE25®, Tata Steel Advantica® L Control (FSL), and ArcelorMittal Estetic® Standard are all available as internal coating options, with the choice dependent upon the end use and environment of the building. Please contact our Technical Team for further information.

Please note: Tata Steel's Colorcoat Prisma® Elements coatings are not available.