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