[gattoettore]

Hello to everybody. I would like to know your opinion relevant to the subject. In our shipyard we build aluminium superstructures. The non load bearing bulkheads were constructed with rivets, i.e. a coaming was welded to decks and to ceilings(transversally and/or longitudinally) and extruded aluminium bulkheads were then riveted to coamings. A class surveyor is questioning regarding the fire test of the bulkhead because of the presence of the riveted connection. Our opinion is that we do not need a fire test, because of we will insulate according to a aluminium A fire rated certificate. Have you ever had an experience like this? What is your opinion?

[TSI AV]

Hi,

Unfortunately, You did not provide info abt yacht's length, Class Society, Al-alloy, etc. ?

But please refer to:

1. As example: GL rules: http://www.gl-group.com/infoServices...sch/inhalt.pdf , You can dig out info there.

2. Check out for information abt Al-constructions/materials on: www.iacs.org.uk
International Association of Class. Societies.

3. Could be great, if You check SOLAS convention, Chapter II-2 as well.
http://www.imo.org/Conventions/conte...257&doc_id=647

Hopefully, this info will be helpful for You.

P.S. Is it a RINA in Your case ?

rgds,

Andrei

[gattoettore]

Hello Andrei,
thanks for the information.. I did not connect for a long period... in the meanwhile we had to dismantell the Al riveted bulkheads... classification society: LR
yacht bigger than 3000gt: we are applying SOLAS as passenger vessel.

Thank a lot

Lucia