Only those doorways in deckhouses leading to or giving access
to companionways leading below, need to be fitted with doors in accordance
with regulation 12.
Alternatively, if stairways within a deckhouse are enclosed
within properly constructed companionways fitted with doors complying
with regulation 12, then the external
doors need not be weathertight.
Where an opening exists in a superstructure deck or in the
top of a deckhouse on the freeboard deck which gives access to space
below the freeboard deck or to a space within an enclosed superstructure
and is protected by a deckhouse, then it is considered that only those
side scuttles fitted in spaces which give direct access to an open
stairway need be fitted with deadlights in accordance with regulation 23. A cabin is considered to provide
adequate protection against the minimal amount of water which will
enter through a broken side scuttle glass fitted on the second tier.
.1 where access is provided from the deck above
as an alternative to access from the freeboard deck in accordance
with regulation 3(10)(b) then the height
of sills into a bridge or poop should be 380 mm. The same consideration
should apply to deckhouses on the freeboard deck;
.2 where access is not provided from above, the
height of the sills to doorways in a poop bridge or deckhouse on the
freeboard deck should be 600 mm;
.3 where the closing appliances of access openings
in superstructures and deckhouses are not in accordance with regulation 12, interior deck openings are to
be considered exposed, i.e. situated in the open deck.