Windproof Curtain/Ordinary Curtain: Aluminium pergola with sides provides us a private enclosed space, we could select the type of side curtain by wind conditions we care about. Zipper curtain designed in between the slots, withstand wind forces to ensure won't be blown out, while an ordinary curtain pergola designs for privacy and providing a barrier against breezy conditions as well, but it may without withstand wind forces.
Wind resistance pergola plans: freestanding pergola on deck with regular size of 110mm post, with base part to strengthen ground fixation, wind resistance Class 6.
Pergola with Louvers Strength: The pergola with louvered roof aluminum in dimension 162mm, reinforced withstands more than 60kg/m2.
Watertight when closed: Louvred pergola with roof shutter closed tight, available watertight heavy rain 4-8mm/h when closed.
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