GW Leader 3mm Combi Silver Underlay

Product Code: WPKCSU Underlay Coverage: 15m² Thickness: 3mm Width: 1m Length: 15m Concrete Sub-Floor: No (Unless combined with Damp Proof Membrane Sheet) Vapour Barrier: Yes Underfloor Heating: Yes

GW Leader 3mm Barrier Plus Underlay

Product Code: WPBPU Underlay Coverage: 15m² Thickness: 3mm Width: 1m Length: 15m Concrete Sub-Floor: Yes (In-Built Damp Proof Membrane) Vapour Barrier: Yes on Both Sides Underfloor Heating: Yes

GW Leader 5mm Fibreboard Underlay

100% Natural Product Fast & Easy To Install Dimensions: 590 x 790mm Thickness: 5mm Coverage: Approx. 7m² 15 Boards Per Pack Levels Out Up To 3mm Surface Unevenness Walking Sound Reduction: Up To 15db Impact Sound Reduction: Up To 19db Incredible Pressure Stability: Approx. 20 per m²