Free Roofs and Canopies - Duopitch with roof pitch greater than 30 degrees

[JD001]

Bula guys,

I am doing some calculations for free roofs with a pitch of around 40 degrees, from table B.5 of AS/NZS 1170.2, the only roof pitches considered are up to 30 degrees. can anyone advise what to do in this situation, do i refer back to section 5 for enclosed structures for my roof pitch, or use 30 degrees in Table B.3. Please advise and attach any references (papers, codes etc).

Thanks
JD

 

[sdz]

You could try looking up other codes to see if they cover that range. Try BS EN 1991-1-4:2005+A1:2010/EN 1991-1-4:2005+A1:2010(E) - 7.2.5 Duopitch roofs.
Being a Eurocode you should be able to download a copy for free.