Can you do a diagram with metal fascia as your diagram now is with timber fascia?
Metal or timber fascias can be used in BAL-FZ areas, over fire-resistant linings. This is shown in our Regulatory Information Report RIR 23626A which can be downloaded from our website free of charge via this link https://www.woodsolutions.com.au/resources/standards-codes/fire-test-reports. Refer section 9 of the report for details of the fire resistant fascia linings, and section 10 for installation of the fascia itself.
I noticed in the BAL FZ you have 15mm ply. Can you use any type of 15 mm ply on top of the trusses and rafters?
The metal sheet roof system for BAL-FZ (Flame Zone), assessed by Warringtonfire, was based on 15mm pine plywood or 15mm OSB roof lining.
Just wondering if cut stringers are allowable under the BCA and if so where can I locate the relevant span tables for stringers and treads in mgp10 treated pine.
Our Technical Design Guide #08 includes span tables for stringers and stair treads. A copy can be downloaded free of charge from our website via this link https://www.woodsolutions.com.au/publications. Alternatively, a hard copy can be purchased here https://www.intertekinform.com/en-au/search/standard/?searchTerm=WS08&productFamily=STANDARD&q=WS08. Note that the Guide refers to F5 grade treated pine rather than MGP10 since much of the treated pine in the marketplace is graded F5 or F7.