Physical properties
Because of its unique composition, Rockpanel offers excellent physical properties when compared with traditional building materials such as wood, fibre cement and HPL board material.
Lightweight
Rockpanel is not only durable, but offers many benefits during processing and installation. Due to its light weight, Rockpanel is easy to handle on the building site, unlike many other materials, and therefore quicker and easier to install.
| Density nominal | (kg/m3) |
| - Rockpanel Durable (incl. Rockpanel Lines) | 1050 ± 150 |
| - Rockpanel Xtreme | 1200 ± 150 |
| - Rockpanel Ply | 1000 ± 150 |
| Nominal mass of surface | (kg/m2) |
| - Rockpanel Durable 6 mm | 6,3 |
| - Rockpanel Durable 8 mm | 8,4 |
| - Rockpanel Xtreme 8 mm | 9,6 |
 Density nominal Rockpanel vs. Traditional building materials |
Dimensionally stable
Rockpanel is very dimensionally stable. It does not therefore change in length or width with fluctuations in humidity or temperature. Rockpanel can in some cases be used seamlessly. For more information on this, contact Rockpanel.
| Properties | Value | Standard |
| Dimensional stability (mm/(mºK)) | 11 x 10-3 | EN 438-2 |
| Dimensional stability length/width per 23 ºC/50% RH change 23 ºC/95% RH (mm/m) | 0.302 | (after 4 days) |
 Dimensional stability Rockpanel vs. Traditional building materials |
Vapour-permeability
In most cases, Rockpanel boards are manufactured with a vapour-permeable coating. Because of this, it is possible to use the panels in non-ventilated constructions. For advice on non-ventilated applications, always contact Rockpanel.
Another advantage of the vapour-permeability of Rockpanel boards is that the thickness of the total construction is reduced. For a constant construction thickness this means that more insulation material can be used.
| Properties | Value | Standard |
| Vapor transmission Sd bij 23 ºC en 65% RH (m) | NEN-EN-ISO 12572:2001 | |
| - Rockpanel Colours | 1,8 | |
| - Rockpanel with ProtectPlus finish* | 3,5 | |
| Water uptake via the sawn edge (%) | (after 28 days) | |
| - at 20 ºC and 65% RH | < 1,3 | |
| - at 2 ºC and 90% RH | < 0,2 |
