Waterproofing in Jubail: Bunding, Tank Farms and Turnarounds

Waterproofing in Jubail is mostly a containment job. In a city built around refineries, petrochemical plants and desalination, the priority is keeping process liquid inside a bund and keeping rain and groundwater out of structures — specified against chemical exposure and installed inside a turnaround window.

Why is waterproofing in Jubail a containment problem?

Waterproofing in Jubail rarely starts with a leaking roof. It starts with a bund that has to hold a spill, a tank foundation that has to stay dry under a structure nobody can move, or a trench that has to keep process liquid out of the ground. Jubail Industrial City covers 1,016 sq km and contains refineries, petrochemical plants, steel mills, aluminium facilities and desalination plants. On that kind of site, the layer we install is as much an environmental control as a building fabric.

The consequence for specification is direct. A roof membrane is selected against weather; a bund lining is selected against a named chemical at a named concentration and temperature, with a stated contact duration. Those are different questions, and the answer to the second one lives on a manufacturer’s chemical resistance chart, not in a general product brochure.

Scale matters too. The city was established in 1975 as the largest civil engineering project in the world at the time, and contributes around 7% of Saudi Arabia’s GDP. A shutdown on an asset of that weight is measured in production value, which is why the programme drives the specification here.

Bunds and secondary containment: what the lining has to do

A bund is a structure with two jobs that pull in opposite directions. It has to survive continuous outdoor exposure — heat, UV, rain, wind-blown sand — and it has to remain intact after a chemical release it may never actually see.

• Define the chemical case first. Product, concentration, service temperature, spill temperature and the required containment duration. Without those five, no resistance chart can be read, and a lining chosen on a general claim of chemical resistance is unverified.
• Design the floor-to-wall junction. The base-of-wall fillet is where a bund lining almost always fails. It carries movement between slab and wall and it is where liquid collects. Reinforced detailing here is not optional.
• Deal with the penetrations. Pipe supports, earthing points, drain valves and sump connections each break the lining. Each needs a designed termination rather than a site-improvised one.
• Decide how it will be tested. Holiday (spark) testing on a lining, water testing on a bund, and a written record of both. On an industrial asset the test regime is part of the deliverable.

Tank farms add the foundation question. Ringwalls and tank bases sit on a structure that cannot be inspected again once the tank is in service, so the waterproofing and the corrosion protection have to be right before the tank goes back on. That is a turnaround item by definition.

Plant roofs and buried structures

Above the process areas, Jubail roofs are unusually complicated. Substations, control rooms, compressor houses and analyser shelters carry cable entries, duct penetrations, equipment plinths and access walkways on relatively small roof areas. The ratio of detail to field is high, and detail is where thermal movement concentrates.

Two things follow. First, liquid-applied systems tend to suit these roofs better than sheet, because they follow complex geometry without a seam at every change of direction. Second, the roof cannot usually be surveyed properly without a permit, so the survey itself has to be planned into the outage rather than treated as a preliminary.

Below grade, the picture is less certain and we treat it accordingly. General Gulf literature describes coastal sabkha ground with a high water table and chloride exposure across this zone, but our research pass did not retrieve a Jubail-specific citation for groundwater level or ground chemistry. We therefore do not publish a figure. What goes into a Jubail below-grade specification instead is site data: boreholes, a standing water level, and chloride and sulfate analysis of the groundwater. The system families available are compared in our waterproofing systems guide.

Which Jubail assets carry the work

The three groups run on different rules. A warehouse roof can be done on a weekend. A bund inside a live process plot needs an isolation, a permit and often the unit down. A scope that mixes all three needs phasing rather than a single mobilisation.

Which system suits which Jubail element?

Where the element is a floor as well as a containment surface, the heavy-duty flooring families overlap with this table — see our polyurethane concrete flooring guide for the systems that handle thermal shock and chemical attack underfoot.

Planning around the turnaround window

On a live plant the programme is fixed before the specification is. A turnaround has a start date, a duration and a queue of trades ahead of you, and a coating that needs seven days to cure does not fit into a five-day slot regardless of how well it performs.

1. Get the window in writing early. Duration, the days you actually have access, and which trades precede and follow you on the same surface.
2. Survey under permit before the outage. Substrate condition, existing lining type, contamination and the extent of concrete repair, established while the unit is still running where access allows.
3. Work back from the cure schedule. Select the system against the time available, not the other way round. Fast-cure chemistry exists precisely for this constraint.
4. Plan decontamination as its own task. An old bund floor carries product residue. Cleaning and decontamination precede any mechanical preparation and often take longer than the coating.
5. Prepare, prime and detail. Blasting or grinding, then the base-of-wall fillet, penetrations and joints ahead of the field.
6. Test before handback. Holiday testing and, where the element allows, a water test — recorded and signed off inside the outage.

Summer scheduling is its own constraint. Jubail has a hot desert climate with an annual mean of 27.9°C, and January is the coolest month with a mean daily minimum around 8°C. On a summer turnaround, substrate temperature controls pot life, so night shifts and shaded material storage are planned in from the start rather than improvised in week two.

What goes wrong on Jubail industrial assets

• A lining specified against the wrong case. Chosen for the stored product at ambient, then exposed to a hot spill or a cleaning chemical nobody listed. The resistance chart was read against an incomplete brief.
• Base-of-wall fillet omitted or under-detailed. The single most common containment failure. A lining that stops at a square internal corner cracks there.
• Decontamination underestimated. Residue left in the concrete bleeds back through and destroys adhesion days after the coating looks finished.
• Cure time squeezed to fit the outage. Handing back a lining before it has cured puts it into service with unreacted material and no chemical resistance.
• Penetrations improvised on site. Pipe supports and drain connections sealed with whatever is in the van, rather than the designed termination detail.
• No test record. Without holiday or water testing documented at handback, nobody can tell later whether the lining was sound on day one.

Each of these is avoidable at specification stage. None of them is avoidable once the unit is back up.

What drives waterproofing cost in Jubail

Nothing here is priced from a rate card. The industrial variables dominate, and several have nothing to do with the material.

• Permit regime and access. Hot work, confined space, isolation, standby cover, escorted access and site induction requirements.
• Outage length. A short window drives crew size, shift patterns and often a faster, costlier chemistry.
• Decontamination and substrate repair. Residue removal, spalled concrete repair and profile correction before any lining goes down.
• Chemical duty. A lining for a defined aggressive exposure is a different material class from a general waterproofing membrane.
• Testing and documentation. Holiday testing, water testing, adhesion pull-offs, dry film thickness records and a handback dossier.
• Mobilisation and site logistics. Plant movement into a live process plot, laydown area, and the travel that the scale of the industrial city implies.

Send the chemical duty, the element drawings, the outage dates and the test regime required, and a quotation can be built against the real scope.

Who supplies and installs waterproofing in Jubail

SolidDrops supplies and installs waterproofing and containment lining systems in Jubail — chemical-resistant resin linings, spray polyurea, liquid PU, cementitious systems, tank and sump linings, joint treatment and associated construction chemicals — for process areas, tank farms, utility assets, plant buildings and buried structures.

The starting point on an industrial asset is the duty and the window: what the surface will be exposed to, and how long the plant can be without it. Product selection follows those two answers. Our city page, flooring and waterproofing support in Jubail, sets out the service scope and the enquiry route, and epoxy flooring in Jubail covers the floor systems that usually fall inside the same shutdown.

Send scope, chemical duty and outage dates to [email protected] or call +966 50 213 1112 to arrange a survey in الجبيل.

Frequently asked questions