Document L / U Values
The 'U' value measures the rate at which heat is lost through a material. The lower the 'U' value, the lower the amount of heat lost and the lower the amount of energy wasted.
'U' values will invariably depend on the core material chosen, but FYBACORE panels can be manufactured to suit Document L specifications, which require a value lower than or equal to 0.35 W/m2K.
Due to the extensive choice of panel and core materials available, products can be manufactured to suit individual customer requirements. Where there is a risk of fire, class I/O BS 476 systems come highly recommended, whereas our GRPH Phenolic laminates and foams provide the ultimate protection against fire, smoke and toxic emissions. (See separate GRPhenclad datasheet).