Casual Curves "-- Short intervals between roof materials equal more shade for the space underneath the pergola. -- A gentle roof curve provides a departure from the typical horizontal cover of most pergolas. -- Vines can be trained up columns, but tall, narrow evergreens offer a way to integrate greenery with the vertical elements."
Pergola with a Two-Tiered Roof A curved roofline can have a dramatic effect. This freestanding pergola fuses Asian and contemporary styles with its clean lines and spare detailing. Although the structure looks simple, the two-tiered roof requires highly-skilled professional expertise to produce the large curved laminated beams.