Insulated cast concrete wall system and insulation tie

Details Insulated cast concrete wall system and insulation tie Insulated cast concrete wall system and insulation tie

E - Fixed Constructions

04

G

E04G 17/06 (2006.01) E04B 1/41 (2006.01) E04F 13/08 (2006.01)

Patent

CA 2402926

Disclosed is a tie for securing insulation to a cast concrete wall comprising: a head; a shaft attached to the head and having a longitudinal axis, the shaft comprising a series of barbs positioned at pre-determined longitudinal positions along the longitudinal axis, each successive barb being rotated about the longitudinal axis by a predetermined rotational increment from the immediately preceding barb; and, a tip on the shaft. There is also disclosed a system for constructing an insulated concrete wall comprising: a set of concrete forms comprising two opposing partitions set apart a pre-determined distance; a sheet of insulation secured between the partitions adjacent one of the partitions; and, at least one tie consisting essentially of a head, a shaft attached to the head and a pointed or wedge-shaped tip on the shaft, the tie being inserted through the sheet of insulation such that the tip elastically deforms the insulation to permit passage of the shaft through the insulation and a portion of the shaft extends beyond the insulation into a cavity defined within the forms for securing the insulation to the concrete once the concrete has been poured and cured. A method of constructing an insulated cast concrete wall and a process for making an insulation tie are also disclosed. Inserting the tie into the insulation can be done on-site without any prior preparation of the insulation and can be inserted in any desired pattern greatly facilitating the construction of custom cast concrete walls. Insulation of both sides of the concrete wall can be conveniently done without significant additional labor. A veneer may be applied to one or both insulated surfaces of the cast concrete wall by fastening the veneer to the tie.

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