{"id":1602,"date":"2025-09-11T14:26:12","date_gmt":"2025-09-11T14:26:12","guid":{"rendered":"https:\/\/vikkins.com\/?p=1602"},"modified":"2026-06-11T14:36:44","modified_gmt":"2026-06-11T14:36:44","slug":"insulated-sandwich-panels-cold-storage-project","status":"publish","type":"post","link":"https:\/\/vikkins.com\/cn\/insulated-sandwich-panels-cold-storage-project\/","title":{"rendered":"Insulated Sandwich Panels at Work: Inside a Turnkey Cold Storage Project"},"content":{"rendered":"

From stacked panels in the yard to commissioned chambers behind insulated sliding doors \u2014 a six-photo walkthrough of a turnkey cold storage build, and the envelope decisions that determine its running cost for the next twenty years.<\/em><\/p><\/blockquote>\n

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The finished facility.<\/strong>\u00a0A steel-framed cold storage warehouse with a full line of loading docks; final asphalt paving underway. Client name and exact location withheld for confidentiality.<\/figcaption><\/figure>\n

A cold store is the one building type where the envelope is not a detail \u2014 it is the product. This recently completed project shows what a complete\u00a0cold storage solution<\/strong>\u00a0looks like when it is delivered as one package: steel structure,\u00a0insulated sandwich panels<\/strong>\u00a0for every wall and ceiling, airlock vestibules, insulated sliding doors, and the refrigeration fit-out \u2014 commissioned and handed over as a working\u00a0cold chain<\/a>\u00a0facility.<\/p>\n

As with all client projects, we are not publishing the operator’s name, capacity or precise location. The photos themselves tell the story: a multi-chamber cold storage warehouse in northern China, with chilled and frozen rooms, a dock-side loading corridor, and the panel system that holds the temperature line.<\/p>\n

Project snapshot<\/h2>\n\n\n\n\n\n\n\n\n
Facility type<\/strong><\/td>\nMulti-chamber cold store with dock-side loading corridor<\/td>\n<\/tr>\n
Location<\/strong><\/td>\nNorthern China \u2014 large seasonal temperature swing, hot summers and sub-zero winters<\/td>\n<\/tr>\n
Envelope<\/strong><\/td>\nPU\/PIR-core insulated sandwich panels, walls and ceilings, thickness selected per chamber temperature<\/td>\n<\/tr>\n
Chambers<\/strong><\/td>\nMultiple independent rooms with airlock vestibules and insulated sliding doors<\/td>\n<\/tr>\n
Refrigeration<\/strong><\/td>\nCeiling- and wall-mounted unit coolers, piped to a central plant via overhead racks<\/td>\n<\/tr>\n
Scope<\/strong><\/td>\nSteel structure, panel envelope, doors, dock equipment and cold room fit-out \u2014 single-source delivery<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Why insulated sandwich panels define a cold storage solution<\/h2>\n

In a normal warehouse the structure does the work and the cladding keeps the rain out. In a cold store the logic reverses: the\u00a0sandwich panel<\/a>\u00a0envelope does three jobs at once. It is the insulation \u2014 a continuous PU or PIR foam core with no thermal bridges. It is the room itself \u2014 panels lock edge to edge into self-supporting walls and ceilings. And it is the hygienic finish \u2014 smooth steel facings that wipe down and meet food-safety requirements without further lining.<\/p>\n

That triple duty is why panel specification decides the economics of the whole facility. Refrigeration plant is sized against envelope losses, and electricity to run that plant is the dominant lifetime cost of any cold store. A well-sealed envelope of properly specified\u00a0insulated sandwich panels<\/strong>\u00a0is not a construction nicety; it is the difference between a facility that earns and one that leaks money at -20\u00b0C, day after day, for decades.<\/p>\n

From stacked panels to running chambers: the build in six photos<\/h2>\n

The insulated sandwich panels, ready to install<\/h3>\n

The product arrives as it will perform: factory-foamed panels with steel facings and tongue-and-groove or camlock edges, stacked and wrapped for site handling. Core thickness is chosen per room \u2014 as a rule of thumb, chiller rooms around 0\u00b0C typically use about 100 mm, while freezer rooms at -18\u00b0C and below move to 150\u2013200 mm. Nothing is cut to fit on the ground except openings; the insulation value is built in at the factory, not assembled on site.<\/p>\n

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Panels staged on site.<\/strong>\u00a0Factory-foamed PU cores with steel facings \u2014 the insulation arrives finished, which is what makes panel installation fast.<\/figcaption><\/figure>\n

Cold room panels become chambers and airlocks<\/h3>\n

Inside the steel shell, the cold room panels go up as rooms within the room. The two enclosures in this photo are airlock vestibules \u2014 buffer spaces at chamber entrances that stop warm, humid air rushing in every time a door opens. Air exchange through doorways is one of the largest avoidable heat loads in cold storage construction, and the vestibule is the structural answer to it.<\/p>\n

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Chambers within the building.<\/strong>\u00a0Panel-built airlock vestibules guard the chamber entrances; unit coolers already hang from the panel ceiling above.<\/figcaption><\/figure>\n

Insulated sliding doors and the refrigeration spine<\/h3>\n

Along the loading corridor, insulated sliding doors seal each chamber. Sliding rather than hinged is the standard choice at this scale: the leaf parks flat against the wall, survives forklift traffic better, and its gasket line compresses evenly against the panel face. Overhead, galvanized pipe racks carry the refrigeration lines from the plant room to every chamber \u2014 routed outside the cold envelope so that joints stay accessible for service.<\/p>\n

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The corridor.<\/strong>\u00a0Insulated sliding doors at each chamber; refrigeration pipework runs overhead where it can be serviced without entering the cold zone.<\/figcaption><\/figure>\n

Unit coolers go up<\/h3>\n

Evaporator coils \u2014 the unit coolers \u2014 mount directly to the panel walls and ceilings, which is why mounting loads are planned at the panel design stage, not discovered during fit-out. Reinforcement sits inside the panel where each unit hangs. A scissor lift and two technicians can hang a chamber’s full set in a day once the envelope is closed.<\/p>\n

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cold storage solution<\/figcaption><\/figure>
Fit-out inside the envelope.<\/strong>\u00a0Unit coolers fixed to pre-reinforced panel positions; drain and refrigerant connections follow the same planned routes.<\/figcaption><\/figure>\n

A finished chamber, ready for commissioning<\/h3>\n

The completed room shows what the system delivers: continuous white panel surfaces floor to ceiling, sealed junctions, flush lighting, emergency exits marked \u2014 a volume that can be pulled down to temperature and hold it. From here, commissioning is a matter of staged pull-down, leak checks and proving the control setpoints chamber by chamber.<\/p>\n

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Ready for pull-down.<\/strong>\u00a0A finished chamber: sealed panel envelope, unit coolers commissioned, exits and lighting in place.<\/figcaption><\/figure>\n

The cold storage warehouse from outside<\/h3>\n

From the road, the facility reads as a clean steel-clad building \u2014 the cold storage solution is invisible from outside, which is exactly right. The visible tell is the dock line: a row of sealed loading bays with dock shelters, so refrigerated trucks couple directly to the building and the cold chain never breaks between vehicle and chamber.<\/p>\n

Five details that decide cold storage performance<\/h2>\n

Most cold store problems trace back to a handful of envelope decisions made early. These are the ones this project got right, and the ones worth checking on any quotation you receive:<\/p>\n