• IV-1

IV-1 – Hydroshield

IV-1 is a specially manufactured EPS board suitable for use with inverted roofing systems, available as flat board or a tapered scheme to give any fall required. It is usually ballasted with paving slabs or pebbles.

Download Technical Data Sheet (PDF)
SKU: IV1 Category:


  • CFC, HFC and HCFC-free
  • Ozone Depletion Potential of zero
  • Global Warming Potential <5
  • BRE Green Guide A generic rating
  • 100% recyclable after useful life of the building
  • 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

0.033 W/mK

Compressive Strength

200 kPa @ 10% compression

Board Size

1200 x 600mm rebated on 2 sides


Designed to achieve the required U value