Composite Panel Resistance

Composite Panel Resistance

Considerations for your wall and ceiling system


To increase the performance of our panels, we continuously develop our products to ensure Isoclad permanently meet the latest legislative requirements, building control regulations and insurance company requirements.

Newly developed products undergo thorough in-house testing and we also carry out regular fire tests in established testing centres, such as BRE Global and Warrington Fire to ensure optimum Composite Panel Resistance.

Different cores give panels different thermal resistances which results in some panels being more suitable for fire applications, such as bakeries, and others more suitable for chill or freeze related applications, such as cold stores and indoor ski slopes.


We are the UK’s largest independent LPCB approved manufacturer of the full range of panel cores (Rockwool and Thermocore) and therefore uniquely positioned to give totally unbiased
advice on panel applications.

If in doubt, specifiers should refer to their insurance provider or the latest IACSC guide to ascertain the correct core material according to risk.

All Isoclad panels allow users to meet current Building Regulation requirements together with the highest thermal resistance standards. Different requirements can be met by the correct
selection of core type and thicknesses.


Fire resistance is measured in terms of:
Integrity – the ability of a system to stop the penetration of hot gases and flames
Insulation – the ability of a system to reduce the temperature rise on the unexposed side of the fire and therefore prevent fire spread through radiated heat.

Firerated panels


Isoclad Firestop panels used in a wall application will provide equal fire performance from both sides i.e. symmetrical fire performance and require NO additional components in order to achieve the excellent ratings shown in the following tables opposite.

When considering the fire resistance of a panel system it is important to refer
to both integrity and insulation.


To read our full resistance guide, click here.

  • lpcb
    LPS1175 SR3 and SR4
    Modular Security Enclosure
    and Partitioning System
  • ballistics
    European Ballistic Standard
    EN1063 – BR2 (NSR), BR3 (SR),
    BR5 (NSR), BR6 (NSR)