Twin Roll
ROCKWOOL Twin Roll is stone wool insulation. The thermal insulation is non-combustible and has additional acoustic properties to absorb sound in roof and internal spaces.
Twinroll is pre-split into 2 x 100mm thick layers in a pack, for quick and easy installation. 100mm is installed between the rafters, and then 200mm over the rafters.
The insulation solution is suitable for roof and attic spaces in a variety of building types, or can be used to overlay suspended ceilings.
Specification
| NBS Clause | Length (mm) | Width (mm) | *Approved thickness range (mm) |
| P10-125, P10 135, P10-140, P10-170, P10-190, P10-217, P10-220, P10-240, P10-250 | 2750 | 1200 | 100 |
*Thickness options may be subject to a minimum production volume. Speak to the specification team for guidance.
Standards and Certification
| Product standards | BS EN 13162, Keymark, Kitemark |
| CE Marking | CE Marked |
Technical Properties
| Reaction to fire (Euroclass) | Euroclass A1 |
| Thermal conductivity | 0.044 W/mK |
| U-Value (W/m2K) | ROCKWOOL Roll between joists (mm) | ROCKWOOL Roll over joists (mm) | Total insulation thickness (mm) |
| 0.14 | 100 | 200 | 300 |
| 0.11 | 100 | 300 | 400 |
| 0.9 | 100 | 400 | 500 |
CAD Drawings
Download CAD Drawings here
