Manchester Vinyl Cupola, Perfect size for a 2 Car Garage or Smaller House, 30&rdquo; square x 40&rdquo; high, Pure Copper Roof Maintenance-free PVC-vinyl with polished copper roof for long-lasting beauty Measures 30" W x 40" H - Builders rule of thumb: 1.5 inches of cupola width for every foot of unbroken roofline Comes in three sections for easy installation & delivery; includes easy-to-follow installation guide Beautiful adornment for the top of your home, barn, shed or garage Fits up to a 10/12 pitch roof (most roofs)