Icopal Thermazone Roof Insulation Boards for Flat Roofs

Thermazone Elastoboard F

Thermazone Elastoboard F is intended for use as part of the Elastoflex LWS liquid-applied waterproofing warm roof system.

Thermazone Elastoboard F is suitable for use over all types of structural deck and must always be laid over a suitable vapour control layer. It may be used without additional reinforcement when the intended roof access is occasional foot traffic and moderate point loading. For balconies and terraces, and for more heavily trafficked areas Thermazone Elastoboard H insulation should be specified instead.

For detailed waterproofing specifications please contact Icopal’s Technical Department.  

Insulation Board Core & Facings

Insulation Board Facings: Thermazone Elastoboard F is faced with a 3mm highly dense reinforced bitumen to the upper surface and with a multi-layered complex of kraft paper and metal foil to the underside which are autohesively bonded to the insulation core during manufacture.. 

The Core : Thermazone Elastoboard F is manufactured from a high performance CFC/HCFC–free polyisocyanurate (PIR) based formulation with a typical density of 30 kg/m3. The board is manufactured with a tongue and groove (T&G) interlocking edge which reduces cold bridging and heat losses through the seams, making it very thermally efficient.

Thermazone Elastoboard F is manufactured without the use of CFCs/HCFCs and has zero Ozone Depletion Potential (ODP) and a low Global Warming Potential (GWP)..

Board Sizes

Flat Board

Board Size (mm)1 1200
Thickness (mm) 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150

1. Manufactured with tolerance ±2 %.

Tapered Roofing

Thermazone Elastoboard F is available in a tapered version at 1:60 and 1:80 fall. Boards are manufactured at a minimum depth of 20mm at 1:60 and at 30mm for 1:80. Tapered boards are supplied at all depths as a single piece board, and are flat edged for butt jointing on site.

Falls other than the standard 1:60 and 1:80 can also be provided to suit project requirements. Please contact Icopal Limited’s Technical Department for further information. 

Tapered Board (1:60)

Length (mm) 1200
Width (mm) 1200
Min Thickness (mm) 20

Tapered Board (1:80)

Length (mm) 1200
Width (mm) 600
Min Thickness (mm) 30

Contact Icopal 0161 8654444

Find Local Support

To discuss your project in more detail please contact
Your Local Area Manager


Technical Support


0330 123 4585

Email: technical.uk@bmigroup.com


Sales Enquiries & Orders


0843 224 7400


0843 224 7401

Email: sales.admin@bmigroup.com

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