Dear Dimitry, thanks for your message. Roto Patio Inowa is a new category of sliding doors. It is not comparable to the common inline sliding systems. Windows with Roto Patio Inowa hardware system are tightly sealed due to the closing movement perpendicular to the frame profile. Also the circumferential gasket and the active control of all locking points ensure a tightly sealed system and makes it to one of the tightest systems on the market. You can get further information about Roto Patio Inowa on the Roto website: ftt.roto-frank.com/int-en/products/details/roto-patio-inowa/. Furthermore there was an article in the latest edition of our customer magazine Roto Inside about the Australian window market. One of our local partners in Australia also talks about his plans to use Roto Patio Inowa in the Australian market. You can find it here: ftt.roto-frank.com/fileadmin/downloads/RIN_45_EN_v0_FenestrationSolutions.pdf Best regards
