(1) Side scuttles and windows, together with their
glasses, deadlights and storm coversfootnote, if
fitted, shall be of an approved design and substantial construction.
Non-metallic frames are not acceptable.
(2) Side scuttles are defined as being round or
oval openings with an area not exceeding 0.16 m2. Round
or oval openings having areas exceeding 0.16 m2 shall be
treated as windows.
(3) Windows are defined as being rectangular openings
generally, having a radius at each corner relative to the window size
and round or oval openings with an area exceeding 0.16 m2.
(4) Side scuttles to the following spaces shall
be fitted with hinged inside deadlights:
-
(a) spaces below freeboard deck;
-
(b) spaces within the first tier of enclosed superstructures;
and
-
(c) first tier deckhouses on the freeboard deck
protecting openings leading below or considered buoyant in stability
calculations.
Deadlights shall be capable of being closed and secured
watertight if fitted below the freeboard deck and weathertight if
fitted above.
(5) Side scuttles shall not be fitted in such
a position that their sills are below a line drawn parallel to the
freeboard deck at side and having its lowest point 2.5% of the breadth
(B), or 500 mm, whichever is the greatest distance, above the Summer
Load Line (or Timber Summer Load Line if assigned).
(6) If the required damage stability calculations
indicate that the side scuttles would become immersed at any intermediate
stage of flooding or the final equilibrium waterline, they shall be
of the non-opening type.
(7) Windows shall not be fitted in the following
locations:
-
(a) below the freeboard deck;
-
(b) in the first tier end bulkheads or sides of
enclosed superstructures; or
-
(c) in first tier deckhouses that are considered
buoyant in the stability calculations.
(8) Side scuttles and windows at the side shell
in the second tier shall be provided with hinged inside deadlights
capable of being closed and secured weathertight if the superstructure
protects direct access to an opening leading below or is considered
buoyant in the stability calculations.
(9) Side scuttles and windows in side bulkheads
set inboard from the side shell in the second tier which protect direct
access below to spaces listed in paragraph (4) shall be provided with
either hinged inside deadlights or, where they are accessible, permanently
attached external storm covers which are capable of being closed and
secured weathertight.
(10) Cabin bulkheads and doors in the second tier
and above separating side scuttles and windows from a direct access
leading below or the second tier considered buoyant in the stability
calculations may be accepted in place of deadlights or storm covers
fitted to the side scuttles and windows.
(11) Deckhouses situated on a raised quarter deck
or on the deck of a superstructure of less than standard height may
be regarded as being in the second tier as far as the requirements
for deadlights are concerned, provided that the height of the raised
quarter deck or superstructure is equal to or greater than the standard
quarter deck height.
(12) Fixed or opening skylights shall have a glass
thickness appropriate to their size and position as required for side
scuttles and windows. Skylight glasses in any position shall be protected
from mechanical damage and, where fitted in position 1 or 2, shall
be provided with permanently attached deadlights or storm covers.