Technical Properties of Panels ( Products )
• Thermal PerformanceRigid urethane insulation has one of the lowest thermal conductivity ratings of any insolent . This makes the retention of heat more efficient, and facilitates the effective maintenance of a temperature controlled environment such as a chill store. The matrix of the insulation core has a closed cell structure that guarantees reliable thermal performance over the lifetime of the building.
• StrengthRigid urethane insulation provides a high level of compression and shear strength, which are essential requirements for insulated sandwich panels.
• AgeingInsulation panels faced with impermeable materials such as steel shows minimal change to the thermal conductivity of the insulant over the life of the installed cladding system.
• Water AbsorptionThe water vapors permeability of rigid urethane insulation is very low due to its closed cell structure. Permeability is further reduced by the metal skin of a panel which acts as a moisture barrier.
• Fire PerformanceLike all organic building materials - wood, paper, plastics, paints - rigid urethane insulation is combustible, although its ignitability and rate of burn depend largely on the fire resistance properties of the material used to skin the panels. The most effective fire resistance can be obtained using a fire rated rigid urethane insulation. By careful blending the urethane with certain additives, it is possible to formulate rigid urethane systems that achieve the fire standards required by National Regulations and the more demanding requirements of the insurance industry.
Insulated panels with fire rated cores have performed well in actual fires and do not contribute significantly to the fire load in the building. They have an excellent track record as roof and wall cladding systems with over 40 years of history. Tests carried out in the UK, Germany, France and the USA all conclude that well designed fire rated insulated sandwich panels have excellent fire resistant properties.