What David Gembala talks about
Operating experience, translated for the room. These are the topics David Gembala addresses in panels, seminars, and industry conversations — each one a position he has had to hold in practice, not just in print.
- Picking the system the building actually needs How commercial roof assemblies should be selected — structure, slope, traffic, chemical exposure — and why most premature failures are written into the specification long before installation starts.
- The economics of maintenance vs. replacement What a roof actually costs over its service life, why inspection and small repairs are rounding errors next to early replacement, and how owners can stop buying roofs twice.
- Safety culture as an operating discipline Roofing is among the most hazardous trades. What separates crews with strong fall-protection habits from the rest — and why that difference is set by leadership, not by posters.
- Lightweight insulating concrete (LWIC) systems A specialty assembly where design, drainage, and deck preparation interact tightly. What LWIC work teaches about treating every roof as a system rather than a stack of products.
Formats
Panel discussions, seminar sessions, and interview-style conversations for industry audiences — building owners, facility managers, contractors, and trade groups. Panels and Q&A are the formats where an operator's experience contributes most, and the ones David Gembala prefers.
Requesting David Gembala
For event or interview requests, use the contact page with the date, audience, and format. Current photographs of David Gembala for programs and promotion — including panel and seminar settings — are available in the photo library, published and credited at davidhgembala.com.