A skylight construction 2 including {HEAD ~ a further gasket} extending from the operating leaf frame and disposed between the operating leaf frame and {TAIL ~ covering means} 
disposed between
A skylight construction 2 including { HEAD ~ a further gasket } extending from the operating leaf frame and disposed between the operating leaf frame and { TAIL ~ covering means }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL