Ever wondered why there are revolving doors at the entrances of big buildings?
Appears to be trouble during excessive movement of people…isn’t it??
Well there is a reason for that bulky thing to get installed at the entrances.
Revolving doors allow better control of the inside temperature compared to the regular sliding or hinged doors.
Opening a hinged or sliding door even for a brief period will result in tremendous amount of heat exchange between the internal and external temperatures, especially in extreme weather conditions.
A revolving door prevents this energy loss as there is never a point where the air can flow freely between in and out of the lobby.
Save energy for better tomorrow :)
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