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hospitality
Resorts & villas
Steel-framed villas, restaurants and service buildings on stilts or slabs – light frames, large openings and storm-rated roofs.
Solution · Coastal & island projects
Coastal & island steel structures – built for salt, storms and remote sites
One supply chain for projects by the sea and on islands: steel designed for typhoon winds, protected against salt air to ISO 12944, fabricated and trial-assembled in our factory, packed for the sea crossing and sized for the island jetty – then bolted together on site with a small crew.
- C5 · CX
- Corrosivity categories ISO 12944 marine and offshore exposure
- VH
- Durability range available more than 25 years – ISO 12944-1
- Typhoon
- Wind design to local code QCVN 02 · ASCE 7 · AS/NZS 1170.2
- 1
- Contract, one supply chain design · supply · ship · erect
Why the coast and islands are different
Salt-laden air, high humidity and sea spray attack steel many times faster than an inland climate; typhoons and cyclones load roofs, walls and connections far beyond normal design winds; and on an island every tonne, every crane and every worker has to cross the water first.
A coastal or island project succeeds when these three problems are solved together, from the first sketch. We design for the corrosivity category and the design wind of the site, choose coatings and fasteners that last in salt air, and plan fabrication, packing and shipment around the vessel, the jetty and the cranes available on the island – one team, one supply chain, one point of responsibility.
What we build
Steel structures for coasts and islands
From resort villas to port warehouses – each designed for its exposure, its wind and its route to site.
hospitality
logistics
Port warehouses & terminals
Warehouses, ferry terminals and cargo sheds with wide spans, canopies and doors rated for typhoon pressures.
splash zone
Jetties & marine platforms
Pile caps, deck steel, walkways, handrails and platforms – protected for the splash zone and sea-water immersion.
utilities
Power, water & telecom
Generator halls, desalination and water-treatment buildings, tank supports, solar structures and lattice towers.
public
Schools, clinics & community
Community buildings that double as storm shelters where the design brief requires it.
modular
Modular buildings by barge
Factory-finished modules shipped by barge or landing craft and set on prepared foundations in days.
用途
A total solution for projects by the sea
01
Corrosion protection engineered in
Duplex galvanising and high-build paint systems to ISO 12944 C5 and CX, with fasteners and details that do not trap salt or water.
02
Designed for typhoons
Wind loads from the local code, higher edge and corner pressures, cyclone-rated cladding and a continuous load path to the foundations.
03
Prefabricated, light and bolted
Members and modules finished in the factory – minimal site welding and painting, fewer people and less equipment on the island.
04
Sized for the sea crossing
Piece weights and dimensions planned around the vessel, the jetty, the island crane and the access road.
05
Fast on site
Trial-assembled steel and pre-cut cladding shorten the erection window between monsoon and typhoon seasons.
06
Built to be maintained
An inspection and maintenance plan for coatings, fasteners and cladding keeps the structure in service for decades.
規格とコンプライアンス
Codes for corrosion and wind
Coastal and island structures are designed to the corrosion, galvanising and wind-load standards of the project location.
International – corrosion
- ISO 9223Corrosivity of atmospheres – classification C1 to CX
- ISO 12944-2 · -5Corrosion protection by paint systems – environments and systems
- ISO 12944-9Protective paint systems for offshore and related structures (CX, Im4)
- ISO 1461Hot-dip galvanised coatings on fabricated iron and steel articles
- ISO 3506 · ISO 10684Stainless steel (A4) and hot-dip galvanised fasteners
Vietnam
- QCVN 02:2022/BXDNational technical regulation on natural physical and climatic data for construction – wind pressure zones
- TCVN 2737:2023Loads and actions – design standard
United States & territories
- ASCE 7Wind loads, hurricane-prone and wind-borne debris regions
- ASTM A123 · A153Hot-dip galvanising of steel products and hardware
Australia & New Zealand
- AS/NZS 1170.2Wind actions – cyclonic regions C and D
- AS 4312Atmospheric corrosivity zones in Australia
- AS/NZS 2312.1 · .2Protection of structural steel – paint systems; hot-dip galvanising
Europe
- EN 1991-1-4Eurocode 1 – wind actions
- EN ISO 12944Paint systems, adopted as European standard
- EN 1090-2 WSC認証取得Execution of steel structures – surface preparation and coating
参考用の概要です――プロジェクト仕様書、採用される基準の版、所轄官庁の判断が優先されます。
Scope
What the total solution includes
Everything a coastal or island project needs from one supplier – choose the full scope or the parts you need.
Site & climate assessment
Before design
Corrosivity category, design wind, exposure to spray and immersion, ground and access constraints.
Structural design
Engineering
Frames, connections and foundations interface for wind, seismic and service loads to the local code.
Approval drawings & calculations
Transparent design
Reviewed and approved by you or your engineer before fabrication – see approval drawings.
Corrosion protection specification
ISO 12944
Coating or duplex system, thicknesses, fasteners and details matched to the category and durability.
Fabrication & trial assembly
Factory
Members, modules and cladding finished and checked in the factory.
Coating inspection records
QA/QC
Surface preparation, dry-film thickness and adhesion records for the dossier.
Sea-worthy packing & shipment
Logistics
Packing, marking and loading for the vessel and the island route.
Erection support & maintenance plan
Site · aftercare
Erection supervision and an inspection and maintenance schedule for coatings and fasteners.
Scope, durability targets and warranty terms are agreed per contract.
Corrosion protection
Designed for salt air and splash zones
Corrosion starts with the right category. We classify the site to ISO 9223 / ISO 12944-2 – coastal and island sites are typically C4 to C5, splash zones and offshore CX or Im2 – and select a system for the durability range you need, up to very high (more than 25 years) in ISO 12944-1 terms.
For marine exposure we typically specify duplex systems – hot-dip galvanising to ISO 1461 with an epoxy and polyurethane coating – or zinc-rich high-build paint systems, and design out salt traps: sealed or drained hollow sections, no water-collecting pockets, isolated dissimilar metals and A4 stainless or galvanised fasteners.
Typhoon & cyclone design
Engineered for the storm, not the average day
Design wind comes from the code of the project location – QCVN 02:2022/BXD and TCVN 2737:2023 in Vietnam, ASCE 7 in hurricane-prone regions, AS/NZS 1170.2 cyclonic regions in Australia, EN 1991-1-4 in Europe. Roof edges, corners and ridges see the highest local pressures, so purlin and fastener spacing is tightened where it matters.
Uplift is followed all the way down: cladding and fixings, purlin cleats and laps, rafters, bracing, hold-down bolts and the foundation interface. Doors and glazing are specified for the design pressure, and for debris impact where the code requires it.
Island logistics
Built in the factory, delivered by sea, bolted on site
On an island the heaviest lift decides the design. We start with the route – mainland port, vessel or barge, island jetty, local crane and access road – and size members, bundles and modules to suit, with trial assembly in the factory so nothing has to be modified on site.
Steel is packed for the sea crossing under our export packing procedure, labelled by erection sequence, and supported on site by our erection supervisors – bolted connections, minimal site welding and touch-up, and small, skilled crews.
Reference
Exposure, protection and planning
Indicative guidance for early planning – the corrosion category, coating system and wind design are confirmed for each site.
| Location | Typical category | Typical protection | Fasteners |
|---|---|---|---|
| Interior, ventilated and sheltered | C2 – C3 | Paint system or hot-dip galvanising | Hot-dip galvanised |
| Coastal zone, back from the shore | C3 – C4 | Hot-dip galvanising or 3-coat paint system | Hot-dip galvanised |
| Seafront and island sites | C4 – C5 | Duplex (HDG + paint) or high-build zinc-rich system | Galvanised or A4 stainless, isolated |
| Splash zone, jetty, offshore | CX · Im2 | Offshore system to ISO 12944-9, duplex where suitable | A4 stainless or duplex-coated |
Indicative only – the corrosivity category depends on distance from the sea, prevailing wind, sheltering and local conditions.
| Item | What we check |
|---|---|
| Design wind | Wind zone or region, terrain, topography and importance level from the local code |
| Roof and wall cladding | Local pressures at edges, corners and ridges; fastener type and spacing |
| Purlins and girts | Uplift, laps, cleats and bridging |
| Frames and bracing | Internal pressure with openings, sway and drift limits |
| Base and foundations | Uplift and shear on anchor bolts; overturning |
| Doors and glazing | Rated for design pressure; debris impact where required |
| Input | Why it matters |
|---|---|
| Island port or jetty | Berth depth, deck load and crane decide vessel and piece size |
| Vessel or barge | Deck area and lift limits decide bundle and module size |
| Island cranes and roads | Maximum lift, reach, road width and turning radius |
| Weather windows | Sea state and typhoon season decide shipping and erection dates |
| Local resources | Labour, accommodation, power and water for the site team |
プロセス
How we deliver coastal and island projects
- 1
Site & route survey
Exposure, wind, ground and the route from port to site.
- 2
Design & protection
Structure, connections and corrosion system designed together.
- 3
Approval
Drawings and calculations approved before fabrication.
- 4
Fabricate & coat
Fabrication, trial assembly, galvanising and coating with inspection records.
- 5
Pack & ship
Sea-worthy packing, sequence marking and shipment to the island.
- 6
Erect & maintain
Erection supervision, handover and a maintenance plan.
引渡条件 · Incoterms® 2020
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Incoterms® 2020を比較 →FAQ
よくある質問
How long will steel last by the sea?
That depends on the corrosivity category and the protection system. ISO 12944 defines durability ranges up to very high (more than 25 years) to the first major maintenance; we select the system for the category and durability you need and add a maintenance plan.
Galvanising, paint or both?
For seafront and island sites we usually recommend a duplex system – hot-dip galvanising with a paint system on top – because the two protect each other and last longer together than either alone. High-build zinc-rich paint systems are an alternative where galvanising is not practical.
Which fasteners do you use in marine environments?
Hot-dip galvanised fasteners for most coastal exposures, and A4 (316) stainless steel fasteners for severe and splash-zone exposure – isolated from carbon steel to prevent galvanic corrosion.
Can your buildings withstand typhoons?
They are designed for the design wind of the site to the local code – including higher local pressures at edges and corners, uplift through the whole load path and doors rated for the design pressure.
Our island has no heavy crane – can you still deliver?
Yes. We plan piece and module weights around the cranes, vessel and jetty available, and can split members with bolted splices so that they can be handled with light equipment.
Do you supply only steel, or the whole building?
Either. We can supply the structural steel only, or the complete building – structure, roofing and cladding, doors, accessories, packing, shipment and erection support – under one contract.
Do you provide erection on the island?
We provide erection supervision and can organise the erection team, with erection drawings, sequence marking and a method statement prepared for the site.
Building by the sea or on an island?
Send us the location, the building brief and the route to site – we propose the structure, the corrosion system and the logistics plan together.