Precast concrete offers the architect numerous options for an exterior shell. ATMI Precast has performed projects with vertical panels with punched openings, as well as column and spandrel schemes for the entire exterior. Most office buildings are designed as three floor structures which allows precast to be competitive due to our capabilities to provide full height panels with architectural features. Most office projects include the stair and elevator cores as precast concrete which provides stability for the structure and assists with the interior framing schemes.
A complete precast structure utilizing precast columns, beams, and hollowcore planks has proven to be cost effective when the office building floor plan is greater than 12,000 gross square feet per floor. In this scenario, the column and beams are extended to the roof level for a conventional roofing application.