A comment
I successfully operate the Botanik-Premium greenhouse with seven transverse films and all-welded ends, providing a high degree of design reliability in any conditions. I like the presence of 2 window leaves and a pair of doors, allowing for the ventilation of the greenhouse.
Convenient arched form goes well with the general style of designing a summer cottage. Last season allowed us to collect two full-fledged strawberry crops, which, thanks to their large size, can be grown almost on an industrial scale. Solid-bent and fully-welded arches guarantee the greenhouse's resistance to negative weather factors.
pros
Reliable strong design, good productivity, ease of use.
Minuses
High cost, requires a lot of space on the site, insufficient protection from ultraviolet radiation.