BMAC served as the consultant engineer for main roof membrane renewal. Initial investigation revealed the need for replacement of the membrane, and the fact that original system did not integrate a ventilation system beneath the sheathing. BMAC then was hired to provide design/specification documents, tender process, and field review/contract administration. The system included 2-ply SBS system with cross ventilation across the system. Building is a 3-storey wood-frame resting on concrete foundation.