A coupling assembly for spacing outer sheeting or cladding away from a bracket member including a spacer. The spacer has a first end and a second end. The first end is in substantial overlying abutment with a bracket member and the second end is in substantial overlying abutment with an outer bracket member. A mineral wool is spaced between the bracket member and the outer bracket member, with the space providing the spacing therebetween. The space may be coupled to each of the outer bracket member and the bracket member with a fastener. An insulation system is also disclosed.