Warmline PHE is available in a number of different thicknesses and sizes; please see the drop-down menu for the full selection to suit your needs. This product uses phenolic foam bonded to plasterboard and is used to dryline and insulate in one single application and is only available in square edge. Manufactured using a blowing agent that has Zero Ozone Depletion Potential (zero ODP) and Low Global Warming Potential (GWP) making it exceptionally environmentally friendly. Out of all the insulated plasterboards that are available, Warmline PHE is one of the most thermal and top-of-the-range insulating products on the market. It can be applied directly to a solid wall using a dot & amp; dab method or with mechanical fixing. It is usually recommended that you use both methods as the boards are heavy. They may also need supporting with a Gyproc Nailable Plug either side of the board. It has a c lass O fire rating and is BBA certified.