1) To make partition of installation locations for dowels.
2) Drill holes through the insulation layer in the concrete wall, as to install the dowels. The diameter of the drill bit must correspond to the nominal diameter of the dowel shaft.
3) Insert the dowel with your bare hands into the hole, then position the nail in the dowel and lock it into position with a mallet
4) Insert cap for insulation dowel so that you sink holes milled in polystyrene, and cover the insulation support. Than perform plastering or mount rear facade system.