Warmline EPS is available in several different thicknesses and sizes; please see the drop-down menu for the full selection to suit your needs. This product uses expanded polystyrene insulation providing a modest level of thermal insulation and a Thermal Resistance R-value:0.374 . This makes it suitable for use in rooms where a low level of insulation is required. This product is CFC and HCFC-free, has fixed batons of 0.992 W/m2K and a dot and dab technique of 1.059 W/m2K that can be used as an equivalent to Gyproc Thermaline Basic. Fully applicable with Part L of the building regulations. For any further information or assistance using this product, please get in touch.