Abstract: A building wall assembly includes a panel of foamed polymeric material and studs received in channels at the inner side of the panel such that only an outer portion of the stud fits in the channel and an inner portion of the stud projects from the panel to define a utility space at the inside of the panel. Wooden structural sheathing material is joined across an upper portion of the studs at the inner side. Auxiliary sheathing material, for example concrete board, spans the outside of the panel in connection with strapping members recessed into strapping channels at the outside of the panel in which each strapping member is fastened through the panel to a respective stud. The studs may be wooden. Alternatively metals studs are used with utilities apertures therein so that spray foamed material can be connected between opposing sides of the stud channel through the utility apertures.