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Portholes & Windows
Vessel shall be equipped with windows and portholes as shown on General Arrangement and portholes on the Main Deck arranged in recess in shipside as indicated on the General Arrangement.
Portholes and Windows shall be of weld in type. All portholes on the main deck level and windows in cabins above Upper Forecastle deck and aft windows adjacent to manoeuvring consoles in wheelhouse shall be opening type.
Porthole and window frames shall be of high tensile steel (where available) with stainless steel glass frame fixed to window frame by countersunk stainless steel screws. Aluminium frames will be permissible in the case of a aluminium superstructure being utilised.
Steel frames shall be sandblasted and hot spray metallized (except welding area) from window supplier.
Glass shall be protected with plastic foil during construction period.
Toughened glass, minimum thickness to Class requirements, shall be calculated.
Deadlight plates for closing window in case of damage, for each size of window/porthole shall be provided.
Forward facing cabin windows shall have hinged external cover plates for rough weather protection.
Windows and portholes in accommodation and heated service spaces shall be with double glazing, tinted in colours to the Buyer's approval and sun reduction factor to reduce requirement for A/C capacity.
U-value 1.4 W/m2K, sun factor 28% for double glazed windows.
All portholes shall be arranged with deadlight covers of steel.
No supplier information available.