Vinyl pergolas are unmatched it comes to the issue of maintenance. They are durable and are maintenance-free. Of late, vinyl pergolas come with solid rafters, in addition with one piece construction, so that it does not need any separate end caps. They are not prone to damage due to insects or moisture. Once vinyl pergolas are installed, they last a lifetime without the need for any extra cost for repair, etc. Vinyls pergolas can either be installed to already existing decks or they can be built free standing. Although a little costlier that wood or metal, it is worth spending extra, considering the beauty and comfort they offer.