Geometry and access
Height, pitch, dormers, valleys, chimney count, any flat sections, tight lot lines, and how the crew stages material all factor into labor.
What is below
How many layers come off, what the deck looks like underneath, ice-barrier coverage, ventilation changes, and flashing replacement can all shift the scope.
Materials and logistics
Material choice, custom metal work at edges and valleys, disposal, permit fees, and how the property gets protected during the work should all show up in the estimate.
Planning note
Treat any number on this page as background reading — get a written, property-specific estimate before agreeing to anything.