• CTF-09

CTF-09 – Stone Wool/EPS

CTF-09 is a ‘hybrid’ system comprising of tapered EPS and uniform thickness stonewool underlay used in warm roof applications to create suitable falls under any compatible bituminous or single ply membrane system. Providing superb acoustic/thermal performance and any required fall, the system can be mechanically fixed or fully bonded.

Download Technical Data Sheet (PDF)
SKU: CTF-09 Category:


  • CFC, HFC and HCFC-free
  • Ozone Depletion Potential of zero
  • Global Warming Potential <5
  • BREAM A rating (system dependant)
  • Easy handling and installation

U Values

Each scheme is individually designed to achieve the required U value. Contact our technical department for further information.


Must be installed in accordance with manufacturer’s recommendations. Contact our technical department for further information and compatibility.

Thermal Conductivity

EPS – 0.033 – 0.035 W/mK
Stonewool 0.039 W/mK

Compressive Strength

EPS150 150 kPa @ 10% compression

Board Size

EPS – 1200 x 600mm others available to reduce waste
Stonewool – 1200 x 1000mm


Designed to achieve the required U value


Mechanically fixed with thermally broken fasteners
Bonded with non-solvent PU adhesive