Product Description:Floor Heating membrane UM505 Material:polyethylene(PE)film top; polypropylene (PP) nonwoven bottom Roll Size:1mx20m,1mx10m,1mx5m Weight:1000g/sqm Thickness:5.6mm Film thick:0.45mm Wire cable diameter:3.6-4.2mm Installation Temperature:-10℃to 40℃, but limited by tile adhesive specification Storage Temperature:Max. 45℃ Melting:160℃ Steam Resistance:160m Equivalent air layer Air gap volume:2.8 litre/m2 Filling volume of the studs:2.3 litre/m2 Distance of the studs:4.0 mm Crack bridging:0.32mm Tensile Strength:73N/cm Waterpoof:yes Packing:wrapped in plastic film Color:Red, Orange, Yellow, Blue etc Estimation of power may achieve from different cable distribution: @64mm spacing 214W/m2 @96mm spacing 142W/m2 @128mm spacing 100W/m2 CAD Drawing: