You‘ll need some more underlay and overlay to maintain depth and acoustics in the unheated areas! (Unheated areas aren‘t covered by the kits)

WCVF-HDFO 7mm HDF Heating Overlay 4 base boards, 4 top boards 2.88m2 HDF overlay board is supplied in packs of 8 (4 top boards and 4 base boards) with a coverage of 2.88m2