A career in commercial roofing
David Gembala’s professional background is rooted in commercial roofing and re-roofing — the design, installation, and renewal of roof systems on large buildings. It is a field where material selection, detailing, and execution determine how a roof performs over decades.
Lightweight insulating concrete
A defining part of that work is lightweight insulating concrete (LWIC), a cementitious roof-deck system that provides thermal insulation, slope to drain, and a stable base for roofing membranes. LWIC is widely specified on commercial and institutional roofs, and it sits at the center of his technical focus.
Operating companies
His commercial roofing background connects to operating companies including Atlas Apex Roofing, Concrecel USA, and National Roofing Alliance — references that place his work within established South Florida construction and roofing operations.