Example 7-17 Low Strength Enclosure Venting

Design to protect a large warehouse containing plastic materials that can emit ethylene and propylene vapors. The dimensions on the rectangular building with a flat roof are  

The building design has been selected as good for 0.4 psi overpressure. See Table 7-23 for glass window shattering. Use known design figures when available. 

This will require roof bursting panels, side wall bursting panel, or an end panel that could be hinged to blow out. The panel relieving pressure should be set for 0.40 psi — 0.35 psi = 0.05 psi to burst or relieve per code. 

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