1. Water and electric underfloor heating insulation generally uses three elements: extruded panels, reflective underfloor heating films and boundary insulation strips.
2. Choose extruded boards with a bulk density of 35 to 36 kg/cube. This is the critical value. For home decoration, the thickness is about 2cm. Preferably a white crystal board.
3. Corner insulation strips cannot be replaced by extruded panels.
4. The reflective film must be a specular reflective film. Non-woven fabrics degrade within a year.
PS: Personal opinions are for reference only.