A1 Wall Panels for Hospitals: Theatre, Ward and Corridor Specs Compared

One hospital, three wall specifications. An operating theatre is destroyed by a joint that cannot be cleaned, a ward is destroyed by a bed frame, and a corridor is destroyed by both — yet most projects issue a single "A1 wall panel" clause and expect it to cover all three. The fire class is the only line that stays the same.

What changes is thickness, joint detail, impact protection and fixing. Golden Chameleon supplies all three zones on the same core, and the differences below come from submittals that were rejected and then rewritten.

1. Which Spec Changes Between an Operating Theatre, a Ward and a Corridor?

Joint detail changes first, then impact protection, then thickness. Theatre walls fail on cleanability, ward walls fail at bed-head height, corridor walls fail at 900 mm where trolleys run. The panel is the same product; the build-up is not.

Three consequences are worth spelling out.

Theatre: the coving decides the acceptance. A 100 mm coved skirting with a continuous sealant bead is the only junction a theatre manager will sign off, and it is also the first thing to fail when the sealant is applied over dust. Specify the sealant, the substrate preparation and the cure time, not just the radius.

Ward: protection is a separate line item. No 10 mm mineral board survives a bed frame pushed against the same point twice a day for a decade. The bumper rail at 150–900 mm is the specification that saves the wall, and it needs a fixing into the stud, not into the board.

Corridor: the wall may also be a compartment wall. An A1 lining on an EI 60 wall does not make the wall EI 60 — the resistance comes from the assembly, and the lining's job is to add no fuel. If the corridor is a protected escape route, the smoke class matters as much as the fire class: s1 for smoke, d0 for droplets.

Where the two requirements collide

Hospitals routinely ask for a seamless, fully sealed, coved wall and a demountable panel system for service access. Those two demands cannot both be met in the same elevation. The workable answer is a zoned approach: sealed and coved in clinical areas, expressed joints with access panels in service zones, and the transition drawn rather than improvised.

Imaging rooms add a third layer that is usually missed at tender: lead-lined board for X-ray protection. A lead composite has its own fire performance, and the lead sheet is not covered by the lining's A1 report. Ask for the composite's classification, not the panel's.

Because the build-up is zone-specific, the Sulfur Oxymagnesium Decorative Panels schedule for a hospital is normally split into three line items with three thicknesses and three joint details, all on one core.

✅ Bottom line: Specify the junction before the panel — theatre, ward and corridor share a fire class and nothing else.

2. Where Do Hospital Wall Specifications Quietly Contradict Themselves?

In the impact clause, the joint clause and the fixing clause — the three places where a generic "A1 panel" line collapses. Each needs a number, otherwise the contractor chooses the cheapest interpretation. Golden Chameleon writes all three into every hospital schedule it issues.

• Impact. A lining alone is not an impact system. Where the wall takes trolley traffic, write a hard-body test to ISO 7892 at the energy the zone will see, plus a crash rail detail at 900 mm. Where it takes beds, the rail is at 150–900 mm and fixed to studs at 400 mm centres.

• Joints. State the joint type per zone and the sealant class, and say who inspects the coving. A 3 mm expressed joint with a removable skirting is more honest in a corridor than a sealed joint that will crack in year two.

• Fixings and penetrations. Set out gas outlets, handrails, bed-head services and pendant supports before the board layout is frozen. Boards cut around services after the fact lose their edge seal and their flatness in one operation.

The fixing row is where most hospital walls actually fail inspection, because it is the only one that cannot be verified from a sample board. A 10 mm panel fixed at 600 mm centres looks identical to one fixed at 400 mm until a bed is pushed against it.

For theatre feature walls and reception areas, where the finish is visible and the cleaning regime is harshest, High-End Decorative Fire-Resistant Panels are usually specified with a high-pressure laminate face and a sealed, coved junction rather than a printed face — the print survives the look, not the scrubbing.

✅ Bottom line: A hospital wall clause needs three numbers — impact energy, joint type and fixing centres — or the contractor will supply the cheapest reading of each.

FAQ

Q: Can the same panel be used in all three zones?

A: The core can, the build-up cannot. A 10 mm panel works in a theatre and a corridor with different joint details and different protection, but a ward bed-head needs a rail regardless of thickness, and a theatre needs a coved, sealed junction that a corridor does not.

Q: Does an A1 lining make a corridor wall fire-rated?

A: No. A1 describes the lining's contribution to fire; EI 30 or EI 60 describes the resistance of the whole assembly. The lining must be A1 or A2-s1,d0 and the wall must be tested as a system — two separate documents.

Q: What is most often missing from a hospital submittal?

A: The fixing and penetration set-out. Reaction-to-fire reports and finish samples are almost always present; a drawing showing where rails, outlets and supports land relative to the board joints is usually absent, and it is what the site team needs on day one.

Send the department plan, get three specifications

Send one department plan with the three zones marked, and you will get a wall schedule split by theatre, ward and corridor — thickness, joint detail, impact protection and fixing pattern for each, with the classification documents attached to the thicknesses you actually order. Golden Chameleon is an Inorganic Fireproof Board Manufacturer in Kunshan, China, and Jinmilong (Jiangsu) Technology Materials Co., Ltd. holds the batch records and cut lists behind each hospital schedule.