Multi-sheet glazing unit and method of making same

A retainer sheet (34, 130, 261) for retaining at least one inner sheet, having the retaining sheet support platform (84, 266) taking the supporting platform a lower surface (94) It is having means for securing the sheet retaining member on a spacer frame (28) having a base (44) and opposed legs (40, 42) connected to each other so that they have the general shape of ¿u,, characterized in that the retainer sheet further has at least one pair of flexible fingers (80, 82, 252, 254, 256), each finger a first side and an opposite side designated a second side with a first side mounted on the sides of the support platform extending flexible over a top surface (140, 264) of the support platform toward one another, the flexible fingers being spaced in a non-pushed position of the upper surface of the platform fingers supporting the second side of each flexible finger in a fixed relationship to one another, between the flexible fingers (80, 82) being fixable the at least one inner sheet (32) and that the support platform includes grooves (132) for receiving ends (90) of the legs of the spacer frame or in that the support platform includes extensions (88) and elements (93) having flexible fingers (92) to capture ends (90) of the legs of the spacer frame.