Vista Tie Span Type 1 has been designed for use in double-leaf collar joint walls, and can reduce the problems on site with heavy blocks, using 2 x 100mm blocks tied together with Tiespan type 1 to replace a 215mm block. This method of construction also gives the wall a 6 hour fire rating. Tiespan type 1 is manufactured with 4mm or 3.5mm main longitudinal wires with 20mm flat cross ties. Each length is 2700mm long x 175mm wide.
