We are looking at a dry system for an unheated building. attached to the outside of the building is a canopy/roof eave that extends more than 4' away and will require sprinklers. We would like to use standard sidewall sprinklers as allowed by NFPA 13 2022 8.2.2.2 (4) "horizontal sidewall sprinklers installed so that water is not trapped."
The canopy slopes down away from the building, so the sprinkler head will need to be angled down to discharge downward along the slope. Question - how far can you angle a sidewall down to match a slope and still have it installed so that water is not trapped? If you angle it all the way down (like a pendant) - it would trap some water and pendants are not allowed. but how far is too far? We have a 3.5/12 roof slope, is that ok to match? Thanks! Matt Grise
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