The birthplace of flexible tiles is considered to be North America. Approximately about 100 years ago, the first material appeared, resembling modern shingles.
In accordance with the norms of SP 17.13330.2017 (SNiP II-26-76 Roofs), the structure of the roofing pie for flexible tiles assumes the presence of a lining carpet between the rafter system and the tiled roof.
Over the past centuries, the architecture of the cities of the world has changed repeatedly, which was facilitated by fashion trends, the prevailing cultures and religions at that time, available building materials and their installation technologies. However, from century to century, most of the architectural changes concerned only the "box" of buildings, while the roof structure remained practically the same - but why?
