Waleed Ali
Mechanical
- Apr 3, 2018
- 1
I have central AC system & air ducts are coming from roof through one big shaft. We have so many air ducts coming from roof through the same shaft. My questions are:
1. Shall this shaft on roof covered and constructed with fire rated walls?
2. Shall we install fire dampers on air ducts penetrating the shaft walls on roof?
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Much appreciated if you have a reference
1. Shall this shaft on roof covered and constructed with fire rated walls?
2. Shall we install fire dampers on air ducts penetrating the shaft walls on roof?
>>
>>
Much appreciated if you have a reference