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RE: Enclosure calculation

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Based on the assumption that the worst case scenario is direction of
wind perpendicular to elevations, we evaluate each elevation for the
enclosure calculation.  


Another concern to me is the vertical dimension of the wall.  An example
would be if a garage structure has a room above with a large window in
the room above on the opposite side as the garage door.  Assuming no
other openings, and free passage of air between these two floors, this
structure will be probably be classified as enclosed.  If the garage
floor was evaluated independently, however, it will be defined as
partially enclosed.    
The free passage of air in a structure with many interior walls may also
be hindered, thus affecting the enclosure classification.  

Andy Richardson
Bluffton, SC

-----Original Message-----
From: "Kestner, James W." <jkestner(--nospam--at)>
To: "SEAINT" <seaint(--nospam--at)>

When evaluating the total openings in a building wall to see if the =
building is partially enclosed....

Do you look at the entire building elevation (even though there are =
numerous offsets in that wall)?=20


Do you look only at a straight portion of the wall (from corner to =

How small do the offsets become before you should look at the entire =
elevation as one wall?

Any guidance in this regard would be appreciated.

JIm K.

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