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Door Vision Panel on Smoke Barriers

Question asked by kraiseeh on Oct 2, 2018
Latest reply on Oct 5, 2018 by kraiseeh

Refer to IBC2015 chapter 7 table 716.5 Type of Assembly Smoke Barrier. I am trying to search for the meaning of 2 figures but I could not, please help.

1. What is the meaning of Door Vision Panel Size = Maximum size tested?

2. What is the meaning of D20?

 

Respectfully,

Kraiseeh

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