Established neighborhoods with mature trees and aging roofs.
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Accokeek features established neighborhoods with mature trees and homes largely built from the 1970s through 1990s. Many roofs are on their second cycle or overdue for replacement. The mature tree canopy provides shade but also means constant leaf debris, branch impacts, and moss-friendly conditions.
Second-layer roofs (shingles over shingles) that need full tear-off, moss on north slopes, and flashing failures on older chimneys.
Both layers need to come off. We can't properly inspect the deck or install correct underlayment over two old layers.
Gentle chemical treatment (never pressure washing), then zinc strips to prevent regrowth. Trimming branches to increase sunlight helps too.
