MAINTENANCE FREE, ROT FREE, ROYAL BRAND SOLID CELLULAR PVC VINYL – expertly crafted using a CNC Router, for a precision cut every time. May be painted with exterior acrylic latex paint. PREINSTALLED MESH SCREENING - keeps out unwanted bugs, bees, wasps, and other pests from entering through the louvers. Superior strength – roof has reinforced rafters. Louvered mid-section equipped with interior wood framing brace. 18 gauge heavy duty staples used instead of single nails to prevent components from shifting and for increased strength and durability. DIMENSIONS – assembled: 42"sq x 54"h. Square size measured at roofline. Fits up to a 10/12 pitch roof (most roofs). when calculating the size of your cupola, use our steadfast builder's rule of thumb: 1. 5 inches of cupola width for every foot of unbroken roofline. See photo for more information. WEATHERPROOF BLACK ALUMINUM ROOF – superior strength and durability to withstand temperatures all across the country. MADE IN THE USA - proudly built in the USA since 1982.