Start with conditions, not a product
Deck condition, underlayment quality, flashing at valleys and penetrations, ventilation suited to Alachua County humidity, and drainage under mature tree cover should drive the recommendation, before deciding between a patch and a larger section replacement.
Build a complete scope
- What the deck looks like once the old covering comes off
- How mature trees, landscaping, and neighboring structures are protected mid-project
- Underlayment and flashing suited to heavy rain and humidity
- Permit sign-off with Alachua County, disposal, and site cleanup
- What's excluded, warranty terms, and how change orders are priced
Gainesville context
Three conditions age a roof here faster than the manufacturer's general figure suggests. Heavy north-central Florida rainfall arrives in short intense bursts that test the detailing at valleys, edges and penetrations rather than the field of the covering. Intense sun and humid heat degrade materials year-round, so service life here runs shorter than the same product achieves further north. And dense mature canopy keeps sections of roof permanently shaded and slow to dry, which is where biological growth and retained moisture do their work -- and which also puts limbs over the surface worth assessing before any replacement is scheduled.