RockClose®
RockClose® Insulated DPC is a cavity wall closer that has been designed to prevent thermal bridging by addressing heat loss around door and window reveals.
Consisting of a strip of semi-rigid, non-combustible ROCKWOOL® insulation, bonded to a black polyethylene DPC (to BS 6515), RockClose® is self-supporting and easy to use.
As a cavity closer, it is used as work proceeds between the outer masonry leaf and internal closer block before the frames are fitted.
Specification
| NBS Clause | Length (mm) | Width (mm) | *Approved thickness range (mm) |
| F30-180 | 1200 | 100 | 20 - 50 |
*Thickness options may be subject to a minimum production volume. Speak to the specification team for guidance.
Technical Properties
Fire resistance | Integrity: 60 mins Insulation: 30 mins |
Thermal conductivity | RockClose® Insulated DPC minimises thermal bridging around door and window reveals and exceeds the minimum thermal resistance of a closer of not less than 0.45 W/mK. |
| Thickness (mm) | Thermal Performance |
| 20 | 0.570 |
| 30 | 0.857 |
| 50 | 1.430 |
CAD Drawings
Download CAD Drawings here
