Climaflex pipe insulation is a polyethylene based closed-cell foam pipe insulation for heating and plumbing. Commonly used to insulate central heating pipework and as a pipe insulation in loft spaces to prevent freezing. In most domestic applications Climaflex pipe insulation is an excellent combination of good performance and low cost. Properties Length: 1m. Pipe size: 15mm. Wall thickness: 13mm. Lengths per pack: 20x lengths. Pack coverage: 20m. Thermal conductivity: 0.038 W/mK at 40°C. 0.036 W/mK at 20°C. 0.034 W/mK at 0°C. Temperature range: -45°C to 105°C. Noise dampening: up to 23dB.