Originally Posted by
GeeRam
To be fair, some of the gust speeds being quoted around the SW and SE today, are borderline close to the 1 in a 100 year max design wind speed for new building design in the UK, although equally you'd still not expect to see roof sheeting flying off like this...........although that roof shape could be creating some interesting local effects up there!!
Yes, that is likely to be near the expected 100year storm limit speed - up North I think some of those limits have been increased somewhat. In some parts they even install ropes and wires to hold roofs down!
My wife also thought that that roof shape looked quite wing like; probably some good suction effects there.