Step 4/6: Fill the panes of the roof
Filling the panes of the roof prevents the parachute from billowing inwards and seeping into the dome. This billowing can also cause structural instability. Tie rope from the top apex to the midsection of each pane, and from each vertex to the opposing midsection of each strut. This is very important!!! In 1998 we had 60 mile an hour winds which didn't even affect our dome because of this structural integrity.