The edge portions of the sheets are connected with the purlins at locations above the insulating boards so that the flexible sheets hang downwardly to suspend {HEAD ~ the insulating boards} beneath {TAIL ~ the roof panels} without compressing the insulating boards 
The edge portions of the sheets are connected with the purlins at locations above the insulating boards so that the flexible sheets hang downwardly to suspend { HEAD ~ the insulating boards } beneath { TAIL ~ the roof panels } without compressing the insulating boards
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH