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Wind Components & Cladding Zones

Wind Components & Cladding Zones

Wind Components & Cladding Zones

(OP)
I'm wondering about Zone 2 (edge) vs. Zone 3 (corner) for re-entrant corners and angled corners.  See attachment in link.

RE: Wind Components & Cladding Zones

There is definitely no zone 3 at the reentrant corner. I would treat the 135 degree corner to the left as a corner but not the other. Think "which "corners" are true outside corners".

RE: Wind Components & Cladding Zones

(OP)
Thanks spats.  Does ASCE Wind Design Guide or any other official publication comment on this...that you know of?

RE: Wind Components & Cladding Zones

I would treat both outside corners as Zone 3.

 

RE: Wind Components & Cladding Zones

I don't use ASCE for design however the design code I do use is roughly the same. I would only apply a zone 3 pressure to the extent of roof which is adjacent to both a windward and sidewall edge. I do not think this is the case for the 135deg corner or the re-entrant corner.

RE: Wind Components & Cladding Zones

The re-entrant condition is not a corner.  The two 135 deg conditions are both corners as you have to consider wind from different directions.

RE: Wind Components & Cladding Zones

This is one of many conditions not addressed by ASCE7. In my opinion we are left with no option but to use the heavier loading.

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