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. 24 GAUGE PURE COPPER ROOF - Grade 1, 16 ounce pure copper roof will naturally patina over time. 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: 22"Sq x 27"H. Square size measured at roofline. Fits up to a 10/12 pitch roof (most roofs). When calculating the size of your cupola, use the builder's rule of thumb: 1.5 in. of cupola for every ft of unbroken roofline. MADE IN THE USA - Made to Order. WEATHERVANE READY - Cupola is ready to accept a Good Directions weathervane. Includes pre–installed weathervane bracket inside the roof for easy installation. SIMPLE ASSEMBLY AND EASY INSTALLATION - Comes in three sections for easy installation and delivery. Includes assembly hardware, predrilled holes and an easy-to-follow installation guide.