Is edge insulation needed with tileable insulation screed?

Yes, you should install edge insulation around the perimeter of the room when using the StaenisGrid in combination with tileable insulation screed.

More information about an insulation screed floor build-up
Climate-neutral floor structure
FIT - Flanders - State of the Art Agentschap Innoveren & Ondernemen Vlaanderen Circulair content= Made In Belgium EIT Climate-KIC Netwerk Ondernemen PMV