msd-proj-aj-12-00205 - general specification 205 ......norsok c-002: architectural components and...

GENERAL SPECIFICATION

Document code Version Sub-function Classification

MSD-PROJ-AJ-12-00205 1 Internal

This document is the property of Neptune Energy. It must not be stored, reproduced or disclosed without authorisation. 2.1 - 2019 of 29

General Specification 205 -

Specification for Architectural

RequirementsUncontrolled unless viewed via the Management System

Document Approval

Author Date Verified By Date Approved By Date

Jolanda Smits 05.06.2020

Gerard van Soest 05.06.2020 Marcha Jansen 12.06.2020

Atze de Jong 09.06.2020 N/A

N/A N/A

N/A

N/A

Disclaimer This document is signed electronically and does not need a handwritten signature.


Document code Document title Version Classification

MSD-PROJ-AJ-12-00205 General Specification 205 - Specification for Architectural

Requirements

1 Internal

Uncontrolled unless viewed via the Management System of 29

Version Change Notices

Version Date Changes Updated by Verified by Approved by

1 05.06.2020 Specification 205, rev. 3, 01/05/18 ,

is superseded by this document

Jolanda Smits Gerard van Soest Marcha Jansen

Atze de Jong N/A

N/A N/A

N/A

N/A




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Table of Contents

1. Introduction ............................................................................................................... 5

1.1 General ............................................................................................................................. 5

1.2 Contractor Responsibility................................................................................................... 5

2. Codes, Standards and Supplementary Specifications .......................................... 6

2.1 General ............................................................................................................................. 6

2.2 Project Specifications ........................................................................................................ 6

2.3 Order of Precedence ......................................................................................................... 6

3. Scope.......................................................................................................................... 8

3.1 Detail Design Requirements .............................................................................................. 8

3.2 Room Specification and Architectural Provisions ............................................................... 9

3.3 Installation and Workmanship ......................................................................................... 10

3.4 Highlighted Special Requirements ................................................................................... 11

4. Environmental Criteria and Conditions ................................................................. 12

4.1 Environmental Conditions................................................................................................ 12

4.2 General Design Requirements ........................................................................................ 12

4.3 General Construction Requirements ............................................................................... 12

5. Architectural Requirements ................................................................................... 12

5.1 Introduction ..................................................................................................................... 12

5.2 Detail Design ................................................................................................................... 13

5.3 Noise Control .................................................................................................................. 14

6. Exterior Walls .......................................................................................................... 15

6.1 General ........................................................................................................................... 15

6.2 Exterior Walls – Corrugated Welded Wall Panels ............................................................ 15

6.3 Air Tightness ................................................................................................................... 16

6.4 Fire Resistance ............................................................................................................... 16

6.5 Blast Walls ...................................................................................................................... 16

6.6 Thermal Insulation ........................................................................................................... 16

6.7 Painting and Coating ....................................................................................................... 17

6.8 Exterior Doors ................................................................................................................. 17

6.9 Exterior Windows ............................................................................................................ 19

6.10 Penetrations through Rated Walls ................................................................................... 19

7. Interior Walls ............................................................................................................ 20

7.1 General ........................................................................................................................... 20

7.2 Internal Doors .................................................................................................................. 21

8. Floors and Roofs ..................................................................................................... 22

8.1 General ........................................................................................................................... 22

8.2 Insulation ......................................................................................................................... 22




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8.3 Fire Rating ...................................................................................................................... 23

8.4 Noise Insulation ............................................................................................................... 23

9. Requirements for Clean Areas ............................................................................... 24

9.1 Introduction ..................................................................................................................... 24

9.2 Floor Surface ................................................................................................................... 24

9.3 Ceilings ........................................................................................................................... 25

9.4 Stairs in Accommodation Units ........................................................................................ 26

9.5 Sanitary Facilities ............................................................................................................ 26

9.5.1 Design and Construction Requirements ........................................................................................... 26

9.5.2 Finishes ............................................................................................................................................. 27

10. Wind Wall Sheeting ................................................................................................. 28

10.1 General ........................................................................................................................... 28

10.2 Materials ......................................................................................................................... 28

10.3 Wall Fixation.................................................................................................................... 28

10.4 Installation ....................................................................................................................... 28

10.5 Sliding Doors ................................................................................................................... 28

10.6 Perforated Windbreaks .................................................................................................... 29

10.6.1 General .............................................................................................................................................. 29

10.6.2 Materials ............................................................................................................................................ 29

10.6.3 Painting and Coating ......................................................................................................................... 29




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INTRODUCTION

1.1 General

This specification covers the general and minimum requirements for the architectural items of an

offshore platform in the Dutch Sector of the North Sea.

This specification shall be used in conjunction with a construction contract for a topsides, separate

module or brownfield modification.

The specification is to be used together with all municipal or governmental laws, rules, ordinances,

statutes or regulations, which are in effect in the country of placement.

1.2 Contractor Responsibility

It is Contractor’s responsibility to use this specification and the specifications, codes, drawings and

documents issued as part of the construction contract to complete the design of the architectural

outfitting. Contractor shall be fully responsible for the complete design, including all detailing,

purchase all materials, the construction and the steel-framing.

Contractor shall review this specification carefully and in case the requirements herein are

superseded or in contradiction with the local regulations, Contractor shall notify Company

immediately. In such case, the design will be altered by Contractor to meet these regulations. Any

additions, alternations and exceptions to this specification, require Company’s attention and must

be submitted to Company for approval.

Company stresses that, she puts great emphasis on Health, Safety and Environmental aspects both

during the construction and operational phases.




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CODES, STANDARDS AND SUPPLEMENTARY SPECIFICATIONS

2.1 General

Reference shall be made to the Codes, Standards and Supplementary Specifications as listed in

Specification MSD-PROJ-AA-12-00104 of the subject Contract.

As a minimum this will include the following codes unless agreed otherwise.

Codes, Standards and Regulations

Ministry of Economic Affairs:

”Mijnbouw Wet”, “Mijnbouw besluit” and “Mijnbouw regeling”

Ministry of Social Affairs and Employment: ”Arbeidsomstandigheden besluit” and “Arbeidsomstandighedenregeling”

EU Directive: Offshore Safety Directive (2013/30/EU) NORSOK C-002: Architectural Components and Equipment

2.2 Project Specifications

104 Specification for Laws, Regulations, Codes and Standards MSD-PROJ-AA-12-

00104

201 General Specification for Supply and Fabrication of Steel

Structures

MSD-PROJ-AJ-12-

00201

502 General Specification for Piping Fabrication and Pressure

Testing

MSD-PROJ-AK-12-

00502

503 General Specification for Pipe, Fittings and Valves MSD-PROJ-AK-12-

00503

524 General Specification for Coating of Threaded Fasteners MSD-PROJ-AK-12-

00524

525 General Painting and Coating Specification MSD-PROJ-AK-12-

00525

2.3 Order of Precedence

In case of conflict arising between this specification and its associated specifications, data sheets

and the before mentioned codes and standards, Supplier shall bring the matter to the Buyer’s

attention for resolution and approval in writing. In all cases the most stringent requirements shall

apply.

Should any conflict occur as a result of complying with the data sheets and the specifications, the

order of precedence shall be as follows:

Data sheets;

This specification;

Other referenced project specifications;

Codes and standards referred to within this specification and its attachments.




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For all codes, standards and specifications latest revisions shall be used unless indicated or agreed

otherwise.




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SCOPE

3.1 Detail Design Requirements

The detailed design shall give full details of each building element and specify the relation to other

building elements of the unit. The detailed design shall basically comprise of but not be limited to:

Contractor shall develop architectural arrangement drawings, and HVAC, Instrumentation and

Electrical key and overview drawings.

architectural overall layouts (min. scale 1:20)

showing: exterior walls, interior walls, doors with markings, sanitary fixtures, steel walls, fire

rating, detailed dimensions and description, reference to detail drawings, windows, stairs,

walkways and platforms, fixed furniture.

architectural details and connection details (min. scale 1:2)

for: walls, floors, plinths, ceilings, windows, furniture, insulation, stairs etc.

layouts and elevations of all rooms (incl. stairs) (min. scale 1:20)

showing: equipment, furniture (ref. to equipment list) and utility terminations (e.g. electrical

outlets, taps etc.) on well-co-ordinated locations.

architectural equipment list

final equipment list indicating all furniture and fixtures for each room referring to an appendix

showing exact data and visual appearance of each item. If Contractor deviates from

equipment specified in this tender document these deviations shall be brought under the

attention of Company.

door schedule

door schedule specifying door marks, swing directions, dimensions, fire class, latch and/or

lock provisions, handles, door closers, vision panels, doorstop, louvres, door holders, etc.

schedule of finishes specifying material and colours of all walls, floors, ceilings, doors, etc.

Colour design shall be based on minimum 3 colours, not necessarily standard colours, for

each building element such as walls, ceilings, furniture, doors, etc.

reflected ceiling plans (min. scale 1:20) with co-ordinated utility terminations

lighting fixtures,

emergency lighting,

exit light fixtures,

access panels,

detectors and detector indicators,

speakers,

HVAC fixtures,

vent hoods.

suspended ceiling details for




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all utility terminations in ceiling,

connection to walls,

ceiling box-out.

safety plans (min. scale 1:20) for Accommodation Units and Building

Plan shall indicate: escape ways, room numbers, fire detection/alarm/fighting equipment etc.,

for each level, in three colours.

Two reduced size (A3) copies shall be submitted to Company, within 2 weeks after placement

of order, for approval

safety signs

Escape ways shall be indicated by safety signs of self-illuminating type, make “Jalite” or

equal. Contractor shall issue a safety sign plan for Company’s approval prior to the purchase

and installation of these signs.

3.2 Room Specification and Architectural Provisions

With this specification Company provides the General Requirements for the outfitting of structures.

Contractor shall design, fabricate and assemble the architectural items in accordance with all

drawings, documents, specifications and requirements.

Contractor shall use the project specific information to establish the Scope of Supply and particular

requirements of the individual project. For this, contractor shall extract his information from the

following Project Specific documents and datasheets, if and where available.

Contract and Scope of Work

Plot plans, equipment plans and safety lay-outs

Hazardous area lay-outs

Room Specification Datasheets

The Room Specification Datasheets may also include lists of room outfitting items, in which

case this is also part of the scope of supply.




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3.3 Installation and Workmanship

The architectural items, such as walls, shall be installed in accordance with good workmanship, i.e.:

The installation of the exterior wall parts shall as far as possible be a single continuous

operation

Wall joints shall be flush and minimally exposed.

No parts shall protrude through the face of a regular wall panel.

Internal panel joints shall correspond with ceiling panel joints.

Wall system shall have an integral plinth system providing hygienic watertight connection to

the floor finishing.

All fasteners used shall be stainless steel or unless otherwise specified. Fixing of sheeting

panels by “pop-rivets” is not allowed and shall be executed by drive-screws or Company

approved alternative.

All interior wall parts, fasteners, brackets, supports shall be HDG unless agreed or defined

otherwise.

Interior walls shall be integrally stiffened for fastening of all miscellaneous wall mounted

items.

Before any utility part is built in by the wall system, this part shall be fully tested and

commissioned.

All completed external joints of other than pre-finished material shall be prepared, primed and

painted in accordance with the Company’s Paint Specification MSD-PROJ-AK-12-00525 or

otherwise to the approval of Company.




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3.4 Highlighted Special Requirements

Generally, all materials must be of the highest grades and corrosion resistant, all make and types to

Company approval.

Company highlights the following special requirements for architectural items

General Type approval certificates to be provided of the selected products.

Walls External walls, facing plated and grated walking areas to be provided with an integrated

400 mm high Stainless Steel 316L kick-plate, properly weatherproof connected to walls

and finished with mastic, to protect the wall against damage from trolleys and rubbing

hoses.

External corners of walls, facing plated and grated walking areas to be reinforced

specially to protect the corner against damage from trolleys and rubbing hoses. The

reinforcement to be properly weatherproof connected to walls.

Wall shall be specified in accordance with the safety requirements as shown on the

plotplans.

As far as possible, strips and angle profiles shall be pre-installed and welded to the main

structure prior to the painting of this structure. Angle profiles shall be placed with the leg

positioned towards the centre of the wall, i.e. hidden, to prevent clashes and/or

obstructions with other items, such as pipe supports, cable trays, floor penetrations, etc.

Sheeting Stainless Steel Sliding doors shall be integrated in the external wind sheeting and framing

design.

Doors All doors shall be Stainless Steel.

Contractor shall account for First Aid Stretcher handling and passage for all doors.

Escape

doors

All hinged escape doors shall open in the direction of escape.

Sliding doors shall clearly show the direction of opening on both sides.

The minimum width shall be 0.80 metres.

Escape doors shall not be lockable.

Escape doors shall be of an automatic closing design.

Floor The floors in the building areas shall be adapted to the service of the room, i.e. in all

electrical rooms the floors shall be covered with rubber anti-static mats, unless specifically

stated otherwise. Make and type to be Company approved.

Louvers Stainless Steel 316L.




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ENVIRONMENTAL CRITERIA AND CONDITIONS

4.1 Environmental Conditions

In general, the following environmental data shall be used for the design of the architectural items.

Site ambient temperature range Min. -20ºC - Max. +26ºC

Design Temperature (General) -10ºC to + 26ºC

(Structural Steel) -20ºC to + 26ºC

Maximum Relative Humidity 100%

Prevailing Wind Direction SW

Atmosphere Salt laden

Temperature of sun radiated surfaces +50ºC

100 Year Storm Data

1 Minute Sustained Wind 40.8 m/s

3 Sec. Gusts 50.2 m/s

Rain shall be defined as heavy – 22 mm/hr.

4.2 General Design Requirements

Where applicable, components shall be designed to:

Withstand a wind velocity based on meteorological records of the installation area to be

maximum of 50.2 m/s at 10 metres. The height above the water level will determine the unit

pressure per API RP – 2A, section 5.3.2 or DNVGL-RP-C205, section 2.3.2

Be watertight (keep out storm driven rain).

4.3 General Construction Requirements

Structural Fabrication to be executed according to Specification MSD-PROJ-AJ-12-00201.

Welding

All welding shall be continuous, unless noted otherwise. Intermittent welding will not be accepted.

Only qualified welders and approved welding procedures shall be used.

Procedure qualifications according to AWS – Structural Welding Code ASW DI-I- or equal national

code.

Welding Inspection

Welding inspections shall be executed in accordance with Specification MSD-PROJ-AJ-12-00201.

ARCHITECTURAL REQUIREMENTS

5.1 Introduction

Contractor shall execute a fully integrated architectural design to create a proper working and living

environment, in which all visible items form a part of the colour scheme. The colour scheme shall be

in line with Company’s requirements and, with regard to colours chosen, is subject to Company’s

approval.




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Contractor shall perform the architectural design activities fully in accordance with the relevant

codes, regulations and specifications in this document. Contractor shall therefore employ licensed

architectural expertise approved by the Company.

5.2 Detail Design

In the architectural design, Contractor shall consider all other disciplines and their requirements

to provide a consistent lay-out, with minimal visual interference of the areas and Contractor

shall ensure even the simple items like:

Safe and easy to maintain

All utilities (pipes, ducts, cabling, etc.) to be concealed in or behind walls or above the ceiling

All switches, pull/push buttons, socket outlets etc. shall have the same cover plates

All door handles shall be of equal type

The architectural drawings of the concept provide guidance for the location of the walls, doors

and windows. All penetrations in the exterior walls shall be determined in the detailed design.

Contractors detailed design drawings shall indicate all details such as

all penetrations in the exterior walls

safety steps and grips at escape windows

all wall columns and support framing

Closing strips and angle profiles to fix the wall at top and bottom

Contractor shall ensure that the thickness of steel-sheet, angle-frames and fixing accessories

is of such strength that impact may be sustained from either side with little or no damage




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5.3 Noise Control

Exterior walls and floors shall have a minimum airborne sound insulation index of Ilu 48 dB, impact

sound index of Ico 70 dB.

Internal walls and floors shall have a minimum airborne sound insulation index of Ilu 48 dB, impact

sound index of Ico 70 dB.

For Engine Rooms and Rotating Equipment, such as pumps, compressors, and (air)coolers,

Contractor shall assume a noise level of 85 dB(A) @ 1m of the equipment.

Contractor to confirm by calculations that the proposed wall has a sufficient sound insulation index

to obtain the acceptable sound levels inside the relevant building or room. Sound levels shall be

measured by ISO standards.

Contractor shall design all walls, roofs and floor such that the sound levels in each room does not

exceed the following values:

Special attention to be paid to noise carrying through the (interior) walls.

For general working areas

Workshops 50 dB(A)

Offices 40 dB(A)

Control rooms 40 dB(A)

For Living Quarters

Corridors 50 dB(A)

Galley 50 dB(A)

Toilet/Sanitary Cabins 50 dB(a)

Fitness room produced noise shall be dampened adequately; special

attention shall be given to the floor execution: create a separate

floating floor

Recreation area/canteen 45 dB(A)

Bedroom 40 dB(A)




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EXTERIOR WALLS

6.1 General

The exterior walls complete with all integrated penetrations and utilities shall be designed by

Contractor, structurally and architecturally, to provide a fully weather-tight, gas tight, fire resistant,

well insulated, maintenance free skin, under operation in a harsh marine/industrial environment over

a lifetime of 20 years, not requiring maintenance.

The detailed design by Contractor shall integrate and include all necessary doors, windows, louvers,

removable panels (if applicable), all penetrations from other disciplines and connections to other

building parts.

Exposed edges on insulation materials shall be protected against water ingress whilst in transit and

storage with a heavy membrane coating.

Exterior walls, facing plated and grated walking areas, shall be provided with an integrated 400 mm

high stainless-steel kick-plate to protect the wall against damage from trolleys and rubbing hoses.

All piping will be sleeved through the wall and cables penetrating the wall shall be routed through

MCT’s welded in the walls. The walls shall be required to bear the weight of ducts, pipe runs, ladder

racks, etc. at any point of penetration.

Alternatively, Contractor may provide specific supporting structures for these items, using

standardised support brackets. Contractor shall ensure that these items do not jeopardise the

performance of the walls.

External walls have a minimum sound reduction as specified under ‘Noise Control” of this

specification.

The outer sheeting shall be the same as, or equivalent to, the wind sheeting around the platform.

6.2 Exterior Walls – Corrugated Welded Wall Panels

For some applications, structural load carrying walls of corrugated welded panels will or may be

used. For these walls the following additional requirements are applicable:

Minimum material thickness for exterior steel corrugated wall panels shall be 3 mm.

Additional thicknesses may be required for fire rating or strength.

The walls shall resist the action of the fire from one side only, however, on several locations’

panels might have to resist the action of fire from both sides in order to meet the specification.




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6.3 Air Tightness

Unless stated otherwise on the drawings all walls shall be airtight, of such a construction that the

wall with integrated penetration shall be of a gastight design and construction execution to prevent

gas ingress from the outside, unless stated otherwise.

The minimum differential pressure rating over the wall to confirm gas tightness shall be 100 Pa. and,

where applicable, rat holes and the like shall be welded closed to ensure the required gas tightness.

Air tightness testing may be executed using the HVAC system.

6.4 Fire Resistance

The fire resistance of the wall shall be in accordance with the requirements of the drawings and the

codes and practises. Penetration through building elements such as walls, floors, doors and ceilings

shall be such that fire resistance of the relevant elements in which they occur is maintained. The

walls shall resist the action of the fire from one side only, however, on several locations’ panels might

have to resist the action of fire from both sides in order to meet the specification.

6.5 Blast Walls

Unless noted otherwise on the data sheet/drawings, blast walls to be able to withstand a blast of 500

mBar overall and 1 Bar locally as a minimum requirement.

6.6 Thermal Insulation

The completed exterior skin of the wall of a building block shall be insulated such that after

completion of the block the skin with its thermal bridges achieves an average thermal transmittance

of U-value 0.50 W/m²-K or better. The walls shall be insulated, and vapour tightened such that no

harmful interstitial condensation in the construction of the inner side of the building skin shall occur.

Welded provisions for supporting the insulation and fastening of the installation shall be installed

before blasting and painting.

Where exposed vapour barriers are applied, they shall be provided with a protective Stainless Steel

316L sheet (1mm) to the approval of Company.

Thermal insulation of floors shall be performed by:

a floating insulation floor on the structural under-floor,

an integral insulated floor system,

a weather proof insulation underneath the floor.

Contractor shall, prior to commencing any action other than design, submit to Company for approval

a detailed report with calculations on all physical aspects.




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Contractor shall install and keep insulation materials completely dry. Vapour barriers shall be of

aluminium foil of a thickness of minimum 0.10 mm with a minimum vapour resistance of Ud=100. If

glued to the insulation fire retardant adhesives shall be used. Minimum width of the foil shall be 0.75

mm.

6.7 Painting and Coating

Preparation and coating shall be in accordance with Company’s Paint Specification MSD-PROJ-AK-

12-00525 and shall be subject to approval for detailed application.

Coating for surfaces other than self-finished and factory-coated material shall be preceded by blast

cleaning of the completed assembly.

Wire brushing or alternative methods of surface preparation shall not be applied unless specifically

allowed by Company.

Where contact between stainless steel and mild steel occurs, the Contractor shall propose suitable

materials or methods of coating or isolation of the metal-to-metal surfaces, to prevent Electro-

mechanical degradation in the marine atmosphere.

All finishes proposed shall take account of work site assembly conditions and operational duty.

Methods of repair to damaged panels shall be subject to Company’s approval.

6.8 Exterior Doors

General

Doors shall fulfil the requirements as per NORSOK Standards for operating/handling.

All doors to be stainless steel standard prefabricated doors, coated in accordance with an approved

coating system in accordance with the specifications. The complete door make and type to be

approved by Company. Door frames shall be watertight and shall have the same fire rating and

insulating properties as the external wall of the unit in which it will be installed. The clear opening for

exterior doors shall be minimum 900 x 2050 mm. exact dimensions to be worked out, in accordance

with the current legislation, in the detailed design and subject to approval of the Company.

All hinged doors shall be provided with a 400 x 400 mm window of the same rating as the door,

unless indicated/approved otherwise.

Door Construction

Steel face sheets, door edges, and all reinforcement members shall be stainless steel plates with a

minimum thickness of 2 mm. All bends in steel plates shall be formed with a minimum radius. The

door leaf shall be heavy steel profiles. Cover plates between outside wall frame and inside wall shall

be stainless steel plate with a minimum thickness of 2 mm concealed fastening.




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Door fittings

All doors shall be operable from both inside and outside and a padlock provision is required on the

outside of doors.

Contractor shall ensure that all door outfitting is Stainless Steel 316L and extremely rigid.

There shall be gasket seals around the entire perimeter of doors requiring pressure sealing. The

seals shall be compressed when the door is in a closed position.

Hinges shall be heavy-duty type and surface mounted. The hinge shall be fully welded to the frame

and to the face of the door leaf. The hinge pin shall be made of acid resisting stainless steel. There

shall be a lubrication nipple on each hinge. Door shall have three hinges per leaf minimum or have

4 hinges or more, depending on their weight and purpose.

The exterior door shall have a door closer of a weatherproof, stainless steel, heavy duty type, suitable

for mounting at the exterior side of the door.

Exterior doors shall be provided with a heavy-duty stainless-steel spring and chain that forms an

extra connection between door and doorframe. The doors shall have a built-in latching mechanism.

All parts of the triple latch mechanism shall be extremely robust and heavy in design and all metal

parts, such as lever handles, sindles, latches, bolts, connection rods, screws, etc., shall be of

stainless steel. The latch system shall be entirely removable and replaceable without any alteration

to the door leaf.

Emergency escape doors shall be provided with a panic bar assembly. Panic bar assembly shall be

of extra heavy-duty quality and shall be of mitre gear operated type, designed such that a downward

pressure of the cross bar shall easily operate the total latch mechanism. The panic bar assembly

shall extend the full width of the door leaf to which it is fitted and shall be made totally of stainless

steel. Dependent on grip of the actual panic bar design, a D-type pulling handle will be required to

allow easy closing of the doors.




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6.9 Exterior Windows

General

The complete double-glazed window unit shall maintain the same fire classification as the external

wall in which it will be installed. Type of window to be installed for indoor and outdoor walls, which

suit the wall rating, typically make Golar, ‘t Anker or equal to be approved by Company.

Design Criteria

The external window-unit itself and the connection to the external wall shall be weather-and

watertight, capable of withstanding a constant hydraulic pressure of 12 N/cm2.

Fabrication

All steel parts shall be supplied grounded, straight and true, free from welding wrap and shot blasts.

Factory applied corrosion protection and finishes shall be similar to or the same as the corrosion

protection and finishes of the walls or construction in which the windows are placed.

Glazing compound is to be best quality weather-resistant silicone mastic guaranteed to be stable

and maintain its adhesion to both glass and metal.

The window unit, including insulation glazing, shall be designed and constructed fully in accordance

with requirements under sections “thermal insulation” and “noise control” of this specification and the

gaskets shall be of best quality, medium durometer about 50 shore solid neoprene. Setting blocks,

spaces and shims shall be solid neoprene as above.

Window units shall be installed in window boxes allowing the maximum possible light production per

window. These window boxes shall accommodate a flush-mounted venetian blind system. All blinds

shall form part of the colour schedule.

6.10 Penetrations through Rated Walls

For penetrations through gas-tight or fire rated walls, the rating shall not be affected by the

construction or the materials used for a penetration.

Fabricator to make a dedicated design, to be approved for each application (see also paragraphs

6.1 and 6.4).




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INTERIOR WALLS

7.1 General

This specification covers the use of an approx. 50 mm modular prefabricated B15-class wall system

incorporating an interior door system, removable panels, grilles, designed for concealed utility

systems and flush mounted utility outlets. Panels shall have galvanised steel-sheets covered with

epoxy coating or PVC on both exterior sides and have internal insulation of mineral wool. Wall panels

shall be easily removable without excessive removal of adjacent panels.

For the interior walls (and linings if applicable) 3 different colours shall be used of any epoxy coating

(not necessarily RAL colours) or of the range of fire classified films of the Dobel and/or Gislaved

sample colour card (not necessarily from the standard range of the Manufacturer). Colour scheme

shall be approved by Company.

NOTE: THIS SECTION SHALL ONLY BE USED FOR INTERIOR WALLS IN ACCOMMODATION

AREAS. THIS TYPE OF WALL IS NOT APPLICABLE FOR WALLS TO THE PROCESS AREA,

AROUND THE BATTERY ROOM AND PUMP ROOM. PRIOR TO USING THIS SECTION OF THE

SPECIFICATION, CONTRACTOR SHALL REQUEST PERMISSION FROM COMPANY.




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7.2 Internal Doors

General

Internal doors and frames shall form an integral part of the interior wall system having same ratings

with respect to fire and noise insulation as the wall in which they are installed.

Construction Details

To prevent loss of noise insulation properties, interior doors shall not have door grilles and return air

shall be handled via the ceiling.

All doors shall basically be designed to swing open 180° unless otherwise stated or allowed by

Company.

The minimum clear door openings shall be:

900 x 2050 mm for doors

750 x 2050 mm for toilet doors

Door fittings

All hinged doors shall be provided with a 400 x 400 mm window of the same rating as the

door, unless indicated/approved otherwise.

All hardware shall be stainless steel; this includes latches, locks and thresholds.

All hinged doors shall have three heavy duty stainless ball bearing hinges subject to approval

of Company. The second hinge shall be mounted 200 mm under the top hinge.

Each door shall be provided with a heavy-duty doorstop and door closer unless otherwise

stated by Company.

All doors shall have integral stiffening for mounting of door closures.

Door handles shall be offshore environment resistant, heavy duty type material, with 170 x

50 mm rectangular handle-shield in stainless steel to Company’s approval.




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FLOORS AND ROOFS

8.1 General

Steel deck plate shall be fully welded to meet the required gas tightness and fire ratings.

8.2 Insulation

All floors and roofs bordering to the open air shall be provided with thermal insulation to prevent

condensation. The completed exterior skin of the roof or floor shall be insulated such that after

completion of the block the skin with its thermal bridges achieves an average thermal transmittance

of U-value 0.50 W/m²K or better. The floors and roofs shall be insulated and vapour-tightened such

that no harmful interstitial condensation in the construction of inner side of the building skin shall

occur.

Welded provisions for supporting the insulation and fastening of the installation shall be installed

before painting.

Where exposed vapour barriers are applied, they shall be provided with a protective Stainless Steel

316L sheet (1mm) to the approval of Company.

Thermal insulation of floors shall be performed by:

a floating insulation floor on the structural under-floor

an integral insulated floor system

a weatherproof insulation underneath the floor

Contractor shall, prior to commencing any action other than design, submit to Company for approval

a detailed report with calculations on all physical aspects.

Contractor shall install and keep insulation materials completely dry. Vapour barriers shall be of

aluminium foil of a thickness of minimum 0.10 mm with a minimum vapour resistance of Ud=100. If

glued to the insulation fire retardant adhesives shall be used. Minimum width of the foil shall be 75

mm.




Requirements

1 Internal


8.3 Fire Rating

For fire rated rooms with floors or roofs exposed to the process area, the bottom of the floor shall

have a similar fire rated floor system. The floor system must have certificates with respect to fire-

resistance requirements.

The floor system shall consist of the following:

Rockwool (thickness and density according to certificate and subject to approval of

Company),

Expanded metal reinforcement

8.4 Noise Insulation

The noise insulation of floor and roofs shall meet requirements set out in section “noise control” of

this specification.




Requirements

1 Internal


REQUIREMENTS FOR CLEAN AREAS

9.1 Introduction

This section describes the specific requirements for clean areas, such as:

Accommodation areas

Control rooms

Laboratories

Sanitary units.

Kitchens.

9.2 Floor Surface

The floors in the building areas shall be adapted to the service of the room, i.e. in all electrical rooms

the floors shall be covered with rubber anti-static mats, unless specifically stated otherwise. Make

and type to be Company approved.

Generally, the floor surfaces shall satisfy the following requirements:

For floor penetrations, Contractor shall install sealed sleeves protruding min. 5 mm above

finished floor level.

The floor penetration design shall be such that structural integrity and stiffness of the floor is

not influenced. If required, Contractor shall design, calculate and install appropriate

reinforcing of the floor. Penetration design shall be subject to Company’s approval before

purchasing or fabrication of such items.

For floors in Accommodation and Building Areas (if requested):

The floor shall be absolutely watertight, seamless and damp-tight. The epoxy shall be kept

free from the steel structure. Seams between the steel structure and the epoxy to be sealed

by means of watertight, fire rated putty that remains flexible after application.

The floor surface shall consist of a self-levelling epoxy with a minimum thickness as per

certificate and subject to approval of Company. Alternatively, long life flooring systems, such

as polyester, plastic, etc., may be proposed by Contractor. Floor finishes shall be designed

such that under no circumstances may any moisture be able to penetrate the top barrier, or

any other layer used in the floor finishes.

The flooring system shall be continuous throughout the applicable area for each type of finish

and segregated areas shall be independently levelled.

All repair work, making good and necessary replacement shall be the Contractor’s

responsibility.

As the Sub-floor-contractor shall also be responsible for the supply and installation of the

floor finishes, he shall be totally accountable for the entire flooring system.

The complete installation shall be defect free and subject to the acceptance in writing by the

Company Representative.

For tiled floors, all tile joints shall be of two-component epoxy joints of a brand and colour

subject to Company’s approval, suitably flexible for use in conjunction with the under-floor

system.




Requirements

1 Internal


For tiled floors, the tile joint design shall be symmetrical or otherwise to the approval of

Company.

For floors in Accommodation Quarters:

Sub-floor screeds and composition systems shall be laid in strict accordance with the

selected manufacturer’s mixing and laying instructions.

Total thickness of the floor to be ± 75 mm.

The finished screed shall be level, without tops or pockets such that a 3 m straight edge

placed in any position on top of the screed shall not, at any point, deviate more than 2 mm

from the top of the screed.

Wherever required under applicable regulations, standards and specification, the Contractor shall

be responsible for furnishing the fabrication contractor with adequate written evidence of compliance

of all material and functional certification requirements, at the time of tendering.

9.3 Ceilings

All rooms shall be equipped with internal ceilings unless indicated or agreed otherwise. These

ceilings shall be provided with a prefabricated suspended modular metal insulated ceiling system

with integrated flush-mounted fluorescent lighting fixtures, vertical ceiling panels and access

provisions for utility service/maintenance/repairs.

The ceiling layout shall:

be designed to arrange all utility terminations in the ceiling in an orderly, functional manner

to the approval of the Company.

functionally position all access locations to the utility systems to be serviced above the ceiling.

These items shall be grouped together in order to minimise access provisions. This shall be

given priority even if extra provisions and/or material are required.

indicate all lighting fixtures with type and capacity.

The ceiling system shall have:

easily removable panels.

Panel design allowing removing without excessive removals of adjacent panels, such to

approval of Company.

maximum panel dimensions and internal stiffening of panels to allow practical handling of a

ceiling section when being removed.

minimised number of utilities supports to the structural ceilings, by using wall supported

suspension rails where possible.

ceiling panels with integral mineral wool insulation, which shall meet the values stated under

section 5.3 “Noise Control” in this specification.

sufficient stiffness.




Requirements

1 Internal


Ceiling finish shall have:

semi-matt surface

complete flush joints

Contractor shall indicate on ceiling with black capitals on white name plates where fire dampers,

valves, etc. are located above the ceiling. These items shall be made accessible by means of

individual inspection hatches at each location for inspection and occasional operation.

9.4 Stairs in Accommodation Units

The Stairs shall be designed and fabricated to have:

painted steel plate stringers 8 mm thick,

steel plate threads and risers 6 mm thick,

rounded nosing,

non slip continuous finish on threads and risers, in particular for nosings,

stainless steel handrailing harmonically following stair slope,

stair slope preferably 40° but not exceeding 45° from the horizontal plane,

no threads smaller than 200 mm,

no risers higher than 200 mm,

equal distribution of steps.

9.5 Sanitary Facilities

9.5.1 Design and Construction Requirements

The sanitary unit shall satisfy the following design requirements:

All utilities shall be concealed and all service/maintenance/repair to the utilities of the cabins

shall remain possible after installation and enclosed by internal walls.

All equipment shall be current type, easily available on the market in case of

repairs/exchange.

The construction shall be such that no corrosion will/can occur between walls, tiling or other

components.

The door of the sanitary areas shall be fully stainless steel plated and have the same

hardware as the remainder of the internal doors.

Flexible sealant shall be mildew-resistant and have a completely flush and straight surface.

Surface to which sealant is applied shall be thoroughly cleaned and primed in accordance

with the sealant manufacturer’s instructions.




Requirements

1 Internal


9.5.2 Finishes

The finishes shall meet the following criteria:

low maintenance,

easy cleanable,

tough and scratch resistant,

resistant to commonly used cleaning chemicals and water,

low flame spread properties,

no toxic fumes under fire,

easily repairable

architecturally acceptable in accordance with finish schedule approved by Company,

durably bonded to backing material.

Exposed joints of building parts or sections thereof shall be flush, functional, aesthetically acceptable

and arranged in conjunction with other building parts allowing removal of the individual parts where

required. Unexposed joints of different building parts with respect to materials and/or direction shall

be sealed with a flexible sealant in accordance with manufacturer’s installation instructions and to

the approval of Company. Surfaces that may be wet under normal operation shall be completely

sealed and watertight.




Requirements

1 Internal


WIND WALL SHEETING

10.1 General

In general wind wall sheeting shall be provided around the facilities between the sub-cellar deck and

the main deck in accordance with the drawings.

In general, the bottom of the wind wall shall be 400 mm clear of the plating/grating of the deck below.

In general, the top of the wind wall shall be 1200 mm clear of the steel elevation of the deck above.

In general, to prevent water ingress, windbreaks shall be provided above the sheeting. If detailed

differently on Company’s structural drawing, the structural drawing prevails.

10.2 Materials

The wind sheeting around the platform shall be Robertson Versacor BR5-TF-C2S, 0.75 mm,

including lashings, angle pieces, etc., or approved equivalent. Details and installation fully as per

manufacturer’s recommendations for long term and maintenance free use under offshore conditions,

colour off-white.

Fixation of sheeting in blast relief execution (typical 50 mbar unless noted otherwise) as per

manufacturer’s recommendations unless indicated otherwise on the drawings.

10.3 Wall Fixation

The wind walls have a blast relief function and shall be fixed with “J” bolts to release the walls from

its fixation at an overpressure of 50 mbar. Contractor shall provide calculations including bolt pattern

to achieve this.

10.4 Installation

Correct sizing to be achieved by means of scissor cutting instead of sawing.

Drilled holes in framing to be provided with slack-tectile before installing J-bolt.

10.5 Sliding Doors

Stainless Steel sliding doors shall be integrated in the external wind sheeting and framing design.

For location of doors reference shall be made to drawings. Doors shall be executed without threshold

for easy passage with trolleys.




Requirements

1 Internal


10.6 Perforated Windbreaks

10.6.1 General

At discrete locations, as indicated on the drawings, Company may elect to use corrugated perforated

windbreaks. Details from these panels to be agreed.

Unless indicated otherwise, the windbreak panels will be fixed to the handrail panels by means of

bolted clamps.

Contractor will be responsible to ensure sufficient supporting of the panels to prevent unacceptable

deflections and damage.

10.6.2 Materials

Windbreak panels to be Stainless Steel 316L perforated sheeting on mild steel framing. Minimum

material thickness for the wall panels shall be 3 mm unless additional thickness is required for the

span of the sheeting.

10.6.3 Painting and Coating

The framing shall be Hotdip galvanized after fabrication.

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