We recommend 65 mm of screed on top of the insulation. All installation work must comply with

current Building Regulations. Note that the screed drying time can be up to 4 to 6 weeks

before the underfloor heating system is operated.

The mixing valve needs to be set at minimum temperature when commissioning

the system. Rapid heating of the screed can cause cracking so increase the

temperature by 2 to 3 degrees every day to gently raise the floor temperature to

the desired setting.