Maintenance-free PVC-vinyl with polished copper roof for long-lasting beauty * Made in the USA * Measures 30" W x 40" H. Builders rule of thumb: 1.5 inches of cupola width for every foot of unbroken roofline. * Fits up to a 10/12 pitch roof (most roofs) * Comes in three sections for easy installation and delivery; Includes easy-to-follow installation guide