Neil after reading the report their is confusion about the term 'bulkhead' and the term 'floor'.
A bulkhead provides structural support and is used to compartmentalise areas of the hull
to give sub-divisions for the purposes of containment be it water
A floor is the vertical support beneath the sole, these are not a watertight item.
Lagoons cove and glass the end bulkheads into place to give the subdivision required, they then paint
them grey on both sides and affix mouldings or carpeted panels
over to give the desired internal effect.
The floors are gumped in with goo as are the longitudal decorative bulkheads say around the toilets and cabins.
build their boats it moves onto the contractors who fit the aircon watermakers etc It in my experience is the crux of the problem as these people fit without care ie holes drilled anywhere.
The report is not one i'd front up with in a legal
battle because it draws opinions rather than facts i.e. emotive. The internal furniture and it's bonding has nothing to do with why water
transferred from an are that should be watertight to a much larger area that you simply do not wish to have filled with water.
Mind you the water ingress into the large centre section was through small leaks
, a limber hole at the bilge
apex and likely through the fire-fighting hole in the ER Bulkhead.
The above is just my opinion drawn from what i know about Lagoons and my lifetime as a boat/shipbuilder and having provided legal
matter for defending claims for various Aussie insurance
I'm sure you will agree that if water is entering a compartment after an incident your priority is to find the leak and jam anything into the leak to slow the flow and head
for hopefully a calm shallow area.
None of this and what i've said is rocket science HOWEVER some on this forum tend to deem themselves as the 'knowledge holders' to counter this i did a basic buoyancy calc on our slightly smaller Lagoon
and 'hey presto' the calc's match good practice in that the spaces bouyancy exceeded the wet weight.