Jumbuck HS-UM006D Assembly & Operation Instructions page 21

Both ends open
Open sides at least 25% of
total wall area
FIGURE F1-OUTDOOR AREA-EXAMPLE 1 FIGURE F1
FIGURE F2-OUTDOOR AREA-EXAMPLE 2 FIGURE F2
FIGURE F3-OUTDOOR AREA-EXAMPLE 3 FIGURE F3
FIGURE F4-OUTDOOR AREA-EXAMPLE 4 FIGURE F4
30% or more in total of the 30% or more in total of the
remaining wall area is open and remaining wall area is open and
unrestricted