WILLIWAW Weathering Document
The product images shown represent accelerated weathering conducted at our facility in Telford, PA, located in a humid continental climate with warm, humid summers and cold winters. Average temperatures range from 25–45°F in winter and 65–85°F in summer, with approximately 41 inches of annual precipitation, 65% average humidity, and a summer UV index of 8–9.
Materials are installed facing due south at a 45° angle, receiving approximately 8 hours of direct sunlight daily to accelerate exposure. The estimated acceleration factor is approximately 3:1 — meaning one year of testing may correlate to roughly three years of natural weathering.
Actual appearance and weathering timelines will vary based on climate, altitude, orientation, and site-specific conditions. Due to the natural variability of wood and environmental factors, exact correlations cannot be guaranteed.
Day One
6 Months
One Year
Recoat
Recoat 6 Months
Recoat 1 Year