Insulation Over Slab is one of the most common methods of installing under floor heating. It can be used for new builds, and renovations with an existing slab where the final floor height can be raised.

Insulated Over Slab

The pipe is held in place using barbed pipe staples (supplied), which push into the insulation, or tied to a lightweight mesh (such as D49 or A142) which is simply loose laid on the insulation. Pipe spacing is generally 100mm from perimeter walls and 250mm centre.