Construction cost is additive because construction is additive.
Three steps, from the cost of a wall to the value of a building.
Construction cost is additive because construction is additive. Each layer of a conventional wall arrives as its own material, its own delivery and often its own trade.
Consolidating load-carrying, enclosure and finish into one element removes scopes rather than removing building.
Deployment draws on the industry's existing skills: there is no new trade to certify.
Fewer trades, fewer materials to procure and fewer steps on site, so less labor, and less chance of trades colliding on the schedule, compared with conventional construction.