These exclusive Royal Crowne Alexander Signature Series cupolas are highly detailed in construction and craftsmanship and are distinguished from the other lines of cupolas on the market today. Inspired by the beauty of English Castles. The Signature Series will add elegance and distinctive beauty to your home or institution. This line offers lots of extra detail for the discriminating customer and targets the higher end markets. Signature Series Cupolas are manufactured solely of AZEK Trim which is a rot and moisture and insect resistant material providing a maintenance free product.