Prefabricated Industrial Shelters

Modular Buildings & Cabins Supplier Saudi Arabia — Blast-Resistant Modules, Control Rooms, Switch Rooms & Instrument Cabins In Stock

Gulf Union Ozone supplies prefabricated modular buildings and industrial shelter solutions for Saudi Arabia petrochemical, refinery, oil and gas, and mining facilities requiring API RP 752 and API RP 753 blast-rated, weather-protected or ATEX-classified enclosures. Our portfolio covers blast-resistant modules (BRM) — steel-framed, rated to API RP 752/753 overpressure levels, with blast-rated glazing — for Saudi Aramco and SABIC control room and occupied building siting studies. Modular control room buildings (20–200 m²) housing DCS consoles, CCTV monitors and SCADA workstations with NFPA 496 pressurisation for hydrocarbon environments. Steel-clad and GRP prefabricated switch-room shelters for LV MCC, HV switchgear and transformer rooms, ventilated and weatherproofed to IP55 for Saudi 55°C design ambient. Portable site offices (ISO container-based 20 ft and 40 ft, and custom-frame) with insulation, air conditioning, electrical fit-out and sanitary facilities. GRP and stainless instrument cabins (IP55, IP65, ATEX Zone 2) protecting transmitters and local control panels from Saudi dust, sand and temperature extremes. Safe-haven and refuge-point modules with positive-pressure HVAC, BA cylinder storage and voice-alarm integration. Factory acceptance test (FAT) at Jeddah. ISO 9001:2015 certified (CR 4030570569).

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Modular buildings and blast-resistant cabins for Saudi Arabia oilfields and process plants — Gulf Union Ozone Jeddah

Modular Building Categories

Product Types in Stock

Gulf Union Ozone carries six prefabricated modular building product families to API RP 752/753, NFPA 496 and Saudi Aramco DEP standards — with full structural analysis, FAT at Jeddah and rapid dispatch for Saudi Arabia oilfield and process industry projects.

Type 01

Blast-Resistant Modules (BRM)

Steel-framed blast-resistant modules rated to API RP 752 and API RP 753 overpressure levels for Saudi Arabia petrochemical, refinery and gas-plant control rooms, substations and occupied buildings adjacent to process hazards. Low overpressure BRMs (0.14–0.5 psi peak reflected pressure): structural steel frame, steel-panel cladding, blast-rated double-glazed windows, NFPA 496 pressurised HVAC; for control rooms and substations at moderate separation distances. Medium overpressure BRMs (0.5–2.0 psi): reinforced steel panel construction, blast-laminated or polycarbonate glazing; full HVAC, emergency lighting and voice-alarm system. High overpressure BRMs (2.0–7.0 psi): heavy-gauge steel with reinforced connections, minimal glazing, positive-pressure HVAC with activated-carbon filters, blast-rated door seals. All BRMs designed and structurally analysed using TNO and PHAST-SAFETI consequence models in accordance with API RP 752 siting methodology; blast analysis certificates provided for Saudi Aramco PMT review.

Type 02

Control Room Buildings

Air-conditioned modular control room buildings (20–200 m²) housing DCS consoles, CCTV monitors, SCADA workstations and UPS systems; NFPA 496 Type Z (pressurised) or Type X purge-and-pressurisation for hydrocarbon environments; suitable for Zone 2 exterior environments at Saudi Aramco and SABIC facilities. Structural frame: galvanised steel or painted structural steel; cladding: insulated sandwich panel (100 mm mineral wool, 0.5 mm zinc-coated steel inner and outer face). Flooring: anti-static epoxy-coated raised floor (600 × 600 mm free-access tiles) for cable management. HVAC: precision air-conditioning maintaining 22±2°C and 50±10% RH for DCS electronics; sized for 55°C Saudi design ambient; N+1 redundancy. Electrical: 415V/240V main distribution board, UPS, clean-earth busbar, cable entry glands (IP55 minimum), emergency lighting. Blast-rated option to API RP 752 available as upgrade to standard control room buildings.

Type 03

Switch-Room Shelters

Steel-clad and GRP prefabricated shelters for switchgear, MCC and transformer rooms; ventilated and weatherproofed to IP55 for Saudi Arabia outdoor installation in 55°C design ambient with 1000 W/m² solar gain. LV MCC shelters: insulated steel-panel construction; forced-air ventilation sized to maintain internal temperature below 40°C at 55°C ambient; IP55 doors and sealed penetrations; cable entry from base or roof; cable tray or ladder rack pre-installed. HV switchgear shelters: SF6 and vacuum switchgear room designs to IEC 62271 clearances; forced-air ventilation with intake sand and dust filters (G4/F7 efficiency) for Saudi desert environment; earth grid connection provision. Transformer room shelters: oil-containment bund (110% transformer oil volume) with drain valve and oil/water separator; explosion-relief panel or pressure-relief vent; forced-air cooling ventilation. All shelters factory-tested and supplied with electrical loop-check certificates.

Type 04

Portable Site Offices

ISO shipping-container-based (20 ft and 40 ft) and custom-framed portable offices with insulation, air conditioning, electrical fit-out and sanitary facilities for Saudi Arabia construction site accommodation and temporary office requirements. 20 ft container offices: 6 m × 2.4 m; 50 mm polyurethane-insulated walls and roof; split-system air conditioning 2–3 kW; fluorescent or LED lighting; 4–6 power sockets (15A); cable entry glands; internal linings in melamine board; vinyl flooring; lockable steel door. 40 ft container offices: 12 m × 2.4 m; same specification; configurable open plan or partitioned into 2–3 offices, toilet and store; hot-water system; 3-phase electrical supply. Custom-frame portable buildings: any width and length to suit Saudi site layout; fibreglass or steel cladding; higher insulation specification; ramp and veranda options. All buildings comply with Saudi Labour Ministry accommodation standards for construction site use.

Type 05

Instrument Cabins

GRP (glass-reinforced polyester) and stainless-steel insulated instrument cabins for protecting transmitters, valve positioners, analysers and local control panels from Saudi dust, sand, humidity and temperature extremes; ATEX Zone 2 option for classified hazardous areas. GRP instrument cabins (IP55 standard): BS 4994 or ASTM D3299 construction; minimum 5 mm wall thickness; UV-stabilised gelcoat for Saudi solar radiation; stainless hinges and hasps; standard sizes 1 000 × 800 × 600 mm to 2 000 × 1 500 × 900 mm (W × H × D); window (polycarbonate) and internal lighting optional. GRP ATEX Zone 2 cabins: antistatic GRP (surface resistance ≤10⁹ Ω per IEC 60079-0 Annex L); earthing lug; IP65; ATEX II 3G certificate. Stainless 316L instrument cabins: for coastal, H2S and corrosive environments (Jeddah, Yanbu, Jizan); IP65 standard; all external SS hardware; stainless cable entry glands. Insulated instrument cabins: polyurethane-insulated for impulse-line freeze protection at Saudi winter ambient.

Type 06

Safe Havens & Refuge Points

Positive-pressure gas-tight safe-haven modules with HVAC, BA cylinder storage and voice-alarm integration for muster-point refuge during Saudi Aramco gas-release or toxic-vapour emergencies. 4-person, 8-person and 20-person capacity safe-haven units; structural steel frame; steel-panel gas-tight cladding; blast-rated door with compression seal; positive-pressure HVAC using activated-carbon (AAF) air filter and recirculation fan to maintain internal pressure 25–50 Pa positive relative to atmosphere; NFPA 496 pressurisation requirements. Internal fittings: first-aid kit, BA cylinder storage rack (SCBA sets), fire extinguisher, intercom/voice-alarm panel connected to site PA system, CCTV monitor for external camera view, emergency battery lighting (3-hour minimum), drinking water supply (24-hour minimum provision). Siting as per Saudi Aramco SAES-A-502 muster-area siting criteria; emergency assembly zone sign-posting supplied. Annual inspection and HVAC leak-test service from Gulf Union Ozone Jeddah team.

Product Catalog

Complete Modular Buildings & Cabins Range — 27+ Products

All modular buildings supplied with structural analysis certificates, HVAC performance test records, electrical loop-check reports and FAT documentation. Saudi Aramco DEP 32.81.10.10 compliance documentation available. ISO 9001:2015 QMS (CR 4030570569).

Building Type	Standard	Structure	Size Range	Blast Rating / IP
BRM — Low Overpressure (API RP 752)	API RP 752 / API RP 753	Structural steel frame, insulated steel panels	20–200 m² modular bays	0.14–0.5 psi peak reflected overpressure
BRM — Medium Overpressure (API RP 752)	API RP 752 / API RP 753	Reinforced steel-panel construction	20–150 m² modular bays	0.5–2.0 psi peak reflected overpressure
BRM — High Overpressure (API RP 752)	API RP 752 / API RP 753	Heavy-gauge steel, reinforced connections	20–100 m² modular bays	2.0–7.0 psi peak reflected overpressure
Control Room — DCS (Small, 20–40 m²)	NFPA 496 Type Z / Saudi Aramco DEP 32.81.10.10	Insulated sandwich panel, raised floor	20–40 m² / 4–10 DCS operator consoles	IP55 shell / NFPA 496 pressurised
Control Room — DCS (Large, 50–200 m²)	NFPA 496 Type Z / Saudi Aramco DEP 32.81.10.10	Structural steel frame, insulated cladding	50–200 m² / multi-section modular	IP55 shell / NFPA 496 pressurised / Blast option
Control Room — SCADA / Telemetry Room	NFPA 496 / Saudi Aramco DEP 32.81.10.10	Insulated steel panel, precision AC	15–40 m² / remote pipeline SCADA	IP55 / 22±2°C precision climate control
Switch Room — LV MCC Shelter	IEC 61439 / Saudi Aramco DEP 32.81.10.10	Insulated steel panel, forced-air ventilation	10–60 m² / up to 55°C ambient	IP55 / Internal temp ≤40°C at 55°C ambient
Switch Room — HV Switchgear Shelter	IEC 62271 / Saudi Aramco DEP 32.81.10.10	Insulated steel panel, sand-filtered ventilation	20–80 m² / IEC 62271 clearances	IP55 / G4/F7 intake dust filters
Switch Room — Transformer Room Shelter	IEC 60076 / Saudi Aramco DEP 32.81.10.10	Steel panel, oil-containment bund, explosion vent	15–50 m² / 110% oil containment bund	IP55 / Explosion-relief panel / Oil separator
Site Office — 20 ft ISO Container	ISO 668 / Saudi Labour Ministry	ISO steel container, PU insulation, AC	6.0 × 2.4 m / 4–6 persons	IP34 shell / 55°C design ambient rated
Site Office — 40 ft ISO Container	ISO 668 / Saudi Labour Ministry	ISO steel container, PU insulation, AC	12.0 × 2.4 m / 8–12 persons	IP34 shell / 55°C design ambient rated
Site Office — Custom Frame (Any Footprint)	Saudi Labour Ministry / custom specification	Light steel frame, insulated GRP or steel cladding	Any width × length (modular bays)	IP34 / 55°C design ambient / Ramp option
Instrument Cabin — GRP IP55	BS 4994 / ASTM D3299 / IEC 60529	GRP moulded, UV gelcoat, SS hardware	600×600×400 mm to 2000×1500×900 mm	IP55 / Safe area and Zone 2 (non-ATEX)
Instrument Cabin — GRP IP65	BS 4994 / ASTM D3299 / IEC 60529	GRP moulded, UV gelcoat, IP65 gland entries	600×600×400 mm to 2000×1500×900 mm	IP65 / Coastal and wet process area — Jeddah, Yanbu
Instrument Cabin — GRP ATEX Zone 2	IEC 60079-0 Annex L / ATEX II 3G / BS 4994	Antistatic GRP (≤10⁹ Ω), earthing lug, IP65	600×600×400 mm to 2000×1500×900 mm	ATEX Zone 2 / IP65 / Saudi oil & gas classified areas
Instrument Cabin — Stainless 316L ATEX Zone 2	IEC 60079 / ATEX II 3G / IEC 60529	SS 316L welded enclosure, SS hardware, IP65	Any custom size / insulated option	ATEX Zone 2 / IP65 / Coastal and H2S environments KSA
Safe Haven — 4-Person	NFPA 496 / Saudi Aramco SAES-A-502	Steel panel, gas-tight, positive-pressure HVAC	4-person capacity / 4 m² minimum	Muster refuge — 24-hr water, SCBA, intercom, CCTV
Safe Haven — 8-Person	NFPA 496 / Saudi Aramco SAES-A-502	Steel panel, gas-tight, positive-pressure HVAC	8-person capacity / 8 m² minimum	Emergency refuge — Saudi Aramco gas-release contingency
Safe Haven — 20-Person	NFPA 496 / Saudi Aramco SAES-A-502	Steel panel, gas-tight, redundant HVAC	20-person capacity / 20 m² minimum	Muster-point safe haven — large Saudi plant or offshore facility
Guard Booth / Security Kiosk	Custom / Saudi Aramco GI specification	Steel or GRP, AC, full-vision glass	1.5 × 1.5 m to 3.0 × 2.4 m	Plant gate security — Saudi Aramco access control point
Welfare Unit (Toilet / Shower / Rest Room)	Saudi Labour Ministry / ISO 668	ISO container or custom frame, tiled interior	20 ft or 40 ft container basis	Construction site welfare — Saudi Aramco project accommodation
Generator Enclosure / Acoustic Canopy	BS 4142 / Saudi Aramco GI noise limits	Steel acoustic panel, intake/exhaust silencer	15 kVA–2 500 kVA generator capacity	Generator noise attenuation — Saudi plant and camp generators
Pump Shelter	Saudi Aramco DEP 32.81.10.10	Open-sided or enclosed, steel frame, GRP or steel roof	Any custom footprint	Pump and motor protection — sun and weather shelter Saudi Arabia
Analytical House (Process Analyser Shelter)	NFPA 496 Type X or Z / ATEX option	Insulated steel, purge & pressurise, AC	4–20 m² / 1–8 analyser racks	Process analyser housing — CEMS, GC, online analyser Saudi Arabia
First-Aid Station / Medical Room	Saudi MoH / Saudi Labour Ministry	ISO container or custom frame, AC, medical fit-out	20 ft or 40 ft / custom footprint	Site medical provision — Saudi Aramco construction and operations
Substation Building (Prefabricated)	IEC 62271 / Saudi Aramco DEP 32.81.10.10	Structural steel frame, insulated steel cladding	30–200 m² / modular bays	Distribution substation building — Saudi Aramco and MAADEN projects

Why Us

Why Saudi Arabia Projects Choose Gulf Union Ozone for Modular Buildings & Cabins

⚠

API RP 752 & 753 Blast Ratings

All BRM designs structurally analysed and certified to API RP 752 and API RP 753 using TNO and PHAST-SAFETI consequence models; required by Saudi Aramco Process Safety Management programme. Blast analysis reports and siting study support provided for PMT review.

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Saudi Aramco DEP Compliance

Modular buildings designed to Saudi Aramco DEP 32.81.10.10 (Prefabricated Buildings) and SAES-A-502 requirements. Complete documentation package including data sheet, layout drawing, HVAC specification, electrical single-line diagram and material specification provided for Saudi Aramco PMT approval.

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Factory-Tested Before Dispatch

All modules undergo FAT at our Jeddah facility: HVAC performance, electrical loop checks, blast glazing integrity and pressure retention tested before shipping to Saudi site. FAT reports and certificates issued; punch-list items closed before dispatch to minimise on-site rework.

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Short Lead Times

Standard switch-room shelters and GRP instrument cabins dispatched from Jeddah stock within 2–3 weeks. Portable site offices 3–4 weeks. Custom blast-resistant modules (BRM) and control room buildings 10–16 weeks from order. Emergency fast-track programmes available.

Also Stocked at Gulf Union Ozone

Electrical

Electrical Enclosures

GRP and stainless junction boxes, distribution boards, marshalling cabinets and wall-mount enclosures to IEC 60529, ATEX Zone 1 and Zone 2, for Saudi Arabia oil & gas and process industry electrical installations.

Safety

Safety Equipment

SCBA sets, BA cylinder storage racks, emergency shower and eyewash stations, fire extinguishers and personal protective equipment for Saudi Arabia industrial plant and construction site safety compliance.

Electrical

Cable Trays & Management

Ladder rack, perforated and solid-bottom cable trays in hot-dip galvanised steel, GRP and SS 316L — NEMA VE1 and IEC 61537 — for cable management in Saudi Arabia modular buildings and process plants.

Safety

Fire & Gas Detection

Flame detectors, gas detectors (catalytic, IR, electrochemical), fire alarm control panels, heat and smoke detectors for Saudi Arabia modular buildings, control rooms and process plant fire & gas systems.

Frequently Asked Questions

Modular Buildings & Cabins in Saudi Arabia — Common Questions

What API standard governs blast-resistant module placement on Saudi Aramco sites?

API RP 752 (Management of Hazards Associated with Location of Process Plant Permanent Buildings) sets out the risk-based methodology for siting permanent occupied buildings relative to process hazards. For portable and temporary buildings on active Saudi Aramco construction sites, API RP 753 applies. Both standards require quantitative risk assessment (QRA) and consequence modelling (explosion and fire) to justify building location and blast rating. Gulf Union Ozone's structural team uses TNO and PHAST-SAFETI models to size BRM overpressure resistance (typically 0.14–1.0 psi peak reflected overpressure) for Saudi plant siting studies.

How are modular buildings ventilated and cooled in Saudi Arabia's extreme heat?

Standard portable buildings use packaged DX split-system air conditioning sized for 55°C design ambient and 1000 W/m² solar gain (Saudi ASHRAE climate zone 1A). Control rooms with electronics have precision air-conditioning (PAC) units maintaining 22±2°C and 50±10% RH. BRM and safe-haven modules use over-pressurised HVAC with activated-carbon (AAF) air filters rated to NFPA 496 for hydrocarbon vapour exclusion. All HVAC units use R32 or R410A refrigerant; Saudi SEC-approved electrical connections are provided.

What GRP specifications are used for instrument cabin enclosures in Saudi hazardous areas?

GRP (glass-reinforced polyester) cabins are manufactured to BS 4994 or ASTM D3299 with a minimum wall thickness of 5 mm and UV-stabilised gelcoat for Saudi solar radiation resistance. For ATEX Zone 2 use, the GRP must be antistatic (surface resistance ≤10⁹ Ω per IEC 60079-0 Annex L) and earthed to prevent electrostatic ignition. The cabin is designed to IP55 as a minimum; IP65 is standard for Jeddah coastal-area applications. Gulf Union Ozone supplies GRP cabins with ATEX Zone 2 certificates for instrument locations in Saudi oil and gas classified areas.

Get a Quote

Request a Modular Buildings & Cabins Quotation

To get a fast quotation, provide: building type (BRM / control room / switch room / site office / instrument cabin / safe haven), required footprint (m²) and number of personnel, blast rating required (API RP 752 overpressure psi if applicable), HVAC specification (DX split / precision AC / NFPA 496 pressurised), hazardous area classification (Zone 1 / Zone 2 / safe area), site location in Saudi Arabia, and required delivery date.

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Recent Deliveries

• Blast-resistant control room module — Saudi Aramco Khurais CPF expansion, March 2026
• Modular instrument cabins — SABIC Jubail olefins project, January 2026
• Portable site offices — Saudi Aramco Tanajib construction site, October 2025

CR 4030570569 | ISO 9001:2015 | Jeddah, Saudi Arabia — Saudi Aramco vendor compliance · SAEP-347 credentials

Technical content reviewed by Gulf Union Ozone's Engineering Team, Jeddah — 2026