5.8oz Double Layer: ;Blocks 99% sunlight so that weeds die within 3 weeks without herbicides. UV-Resistant PP: ;Withstands 5+ years of sun exposure so that fabric won’t brittle/crack. Water-Air Permeable: ;Allows 100% drainage so that soil stays fertile while suppressing weeds. Contractor-Grade Strength; – 3×300ft roll covers 900sqft so that large projects save 40% labor time.Staple-Ready Edges: ;Pre-marked overlap zones so that installs achieve perfect coverage in 1 hour.