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Old September 3rd 04, 07:10 PM posted to uk.sci.weather
Col Col is offline
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First recorded activity by Weather-Banter: Apr 2004
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Default FRANCES :- 2.5M Residents Told To Evacuate


"Les &/or Claire" wrote in message
...


It's seeing people seal their homes up with ply that suprises me. As the
windspeed increases the air presure drops outside the building, and if there
is no escape for the high presure air inside the building they actually blow
up instead of being blown down.
Protect the glass from flying debris but leave vents open round the house
to equalise the presures....


I suspect part of the reason is a precaution against looters.
The higher pressure inside effect is one most people are probably
not aware of. During severe gales here you often hear of gable ends
being blown down, but they always fall away from the building.
And on a windy day open a window and watch the curtains. They will
nearly always be sucked towards the window rather than being
blown into the room, as one might expect.

Col
--
Bolton, Lancashire.
160m asl.
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