Installation of underfloor-heating between existing joist application

Existing joists battened and lined with ply 30mm below top of joist.
IDEAL panels cut to fit tightly between.

Jupiter Edge Zone (EZ) panels used to provide 3 pipes per joist void.
Flow and return pipes as well as circuit pipes channelled through joists.

T&G Screed Replacement tiles laid directly on top of System panels (separating foil protects pipes from glue).
Tiles act as load bearing surface for final stone floor.