Wall Sandwich Panels with PIR Insulation Core

Jawdah Industrial Co. Ltd. manufactures and supplies insulated sandwich panel systems for walls and roofs. The wall range is built around one PIR-cored panel offered in two lock designs, U-lock and Z-lock, with plain or ribbed cladding faces and three published insulation thicknesses: 50, 75 and 100 mm.

This page helps engineers, consultants and procurement teams choose a wall panel: which thickness gives which U-value and R-value, which facing material and coating suit the building, which face profile fits the architecture, and when to move to a dedicated page such as cold room or concealed-fix panels.

A wall sandwich panel replaces several site-built layers with one factory-made element. The outer metal sheet is the weather face, the inner metal sheet is the room face, and the insulation core between them controls heat flow. Because the three layers act together, the panel is light to lift yet stiff enough to span between secondary steel rails.

In hot climates such as the Saudi interior and the Gulf coast, the main job of a wall panel is to limit heat gain through the façade so that cooling plant works less. In warehouses and production halls the same panel also gives a clean, washable internal surface, which is why sandwich panels are common in factories, food facilities and logistics buildings.

Jawdah describes its wall sandwich panels as suitable for wall cladding, partitions, façades and insulated building envelopes. The insulation core is polyisocyanurate (PIR), which the company states meets the DIN 4102 B2 fire classification. The standard colour is Cloud White, and other colours are available upon request.

Jawdah supports projects in Riyadh, Jeddah, Dammam and other regions of the Kingdom. Published project references for its sandwich panels include Saudi Aramco facilities (2019–2020), where panels were supplied for walls and roofs together with accessories, and King Faisal University (2017), which received sandwich panel systems.

• Core: polyisocyanurate (PIR), DIN 4102 B2 classification of the core material
• Wall thicknesses published: 50 mm, 75 mm and 100 mm
• Lock designs: U-lock panel and Z-lock panel
• Facings: PPGI, aluminium, stainless steel or galvanized iron
• Coatings: polyester or PVDF
• Documents on request: Technical Data Sheet, System Catalogue, Installation Manual and Tests (hard copy)

Every Jawdah wall panel has the same three-part anatomy: an external cladding sheet, a PIR foam core and an internal cladding sheet. What changes between options is the lock design along the long edges and the profile pressed into each face.

The lock is the tongue-and-groove style joint that lets one panel engage the next. A U-lock and a Z-lock differ in edge geometry, and the choice affects how the joint is fixed and sealed and how the joint line reads on the finished elevation. Exact joint drawings are part of the System Catalogue, which the Jawdah team provides on request.

The wall family is divided into dedicated pages so that each buyer question has one clear answer. The Semi-Corrugated Wall Sandwich Panel page covers the ribbed face option listed in the profile table. The Secret Fix Wall Sandwich Panel and Secret Fix with Groove Wall Sandwich Panel pages explain concealed-fix façade concepts.

For temperature-controlled rooms, see the Cold Room Wall Sandwich Panel page. Buyers who need a fire-resistance period for a wall should read the Fire Rated Wall Sandwich Panels page first, because it explains exactly what the PIR core classification does and does not cover.

• Semi-corrugated face: light ribbing for stiffness and a textured industrial look
• Plain face: flat appearance for offices, showrooms and clean internal walls
• Secret fix: concealed fastening concept for architectural façades (item data on request)
• Secret fix with groove: concealed fixing plus a recessed joint line (item data on request)
• Cold room: wall panels selected for controlled-temperature spaces

Jawdah lists factories, warehouses, cold storage rooms, food and production facilities, workshops, commercial buildings, agricultural facilities, prefabricated buildings, and insulated façades and partitions among the applications of its panel systems. For walls specifically, the panels serve as external cladding, internal partitions and the vertical part of an insulated building envelope.

Typical Saudi uses include logistics sheds in industrial cities, factory extensions where speed of enclosure matters, site offices and prefabricated buildings, and internal partitions that separate a conditioned zone from an unconditioned hall.

Jawdah offers four covering materials: PPGI (pre-painted galvanized iron), aluminium, stainless steel and galvanized iron. Coating options are polyester and PVDF. The standard colour is Cloud White, with other colours available upon request.

As general guidance, pre-painted galvanized steel suits most inland industrial buildings, aluminium is often chosen where lower weight or a non-rusting base metal is wanted, and stainless steel is used where hygiene or aggressive cleaning is expected. PVDF coatings are generally selected for stronger colour and gloss retention under high UV exposure, while polyester is a common economical finish for internal faces and sheltered elevations. Confirm the facing and coating combination for each face separately, because the external and internal sheets do not have to match.

Jawdah publishes overall heat transfer coefficient (U-value) and thermal resistance (R-value) figures for its three wall thicknesses. A lower U-value means less heat passes through each square metre of wall for each degree of temperature difference, so the thicker panel is the stronger insulator.

Use these values when comparing the wall build-up with the energy or thermal requirement in the project specification. The 100 mm values are reproduced exactly as published in the Jawdah product data.

The core data below describe the PIR insulation, not the complete wall assembly. DIN 4102 B2 is a reaction-to-fire class of the core material; it is not a fire-resistance period for a wall, joint or building element.

Detailed test reports are listed by Jawdah as Tests (available in hard copy) and can be requested from the team together with the Technical Data Sheet.

Start with the thermal target. If the specification gives a maximum wall U-value, pick the thinnest Jawdah thickness whose published U-value meets it; if it gives a minimum R-value, work the same way from the R column. Where no target is set, consider the use of the space: an unconditioned store and a cooled production hall do not need the same insulation.

Next decide the appearance and fixing approach. Plain and semi-corrugated faces suit through-fixed industrial walls, while concealed-fix concepts are chosen when the elevation must look smooth and fastener-free. Finally match the facing metal and coating to exposure, cleaning regime and colour requirement, and remember that the panel line also needs flashings and accessories at corners, openings and the base.

Wall panels are normally hung on secondary steel girts or rails, fixed with fasteners through the panel or through the joint depending on the lock design, and sealed at the side laps. A straight, plumb support line matters more than speed: panels follow the steel, and any misalignment shows on the façade.

Jawdah provides an Installation Manual in hard copy. Use it with the shop drawings to agree fixing positions, sealing at laps and the order of flashings before the first panel is lifted. Protect panel faces from scratching during handling and remove protective film according to the installer's procedure.

Most problems on panel façades start at the specification stage rather than on site. The list below collects the errors procurement and design teams most often make.

• Treating the PIR core's DIN 4102 B2 class as a fire-resistance period for the wall
• Choosing thickness by price only, without checking the U-value or R-value target
• Specifying one coating for both faces without considering exposure and cleaning
• Leaving flashings, trims and sealing out of the BOQ
• Assuming a RAL colour is standard instead of confirming it in writing
• Ignoring support-rail spacing and alignment when planning the panel layout

All wall options share the same Jawdah PIR core data and thickness table. They differ in face profile, fixing visibility and intended use, and in how much item-specific data the Jawdah source currently publishes.

Jawdah manufactures and supplies sandwich panels in Saudi Arabia and helps contractors, consultants and owners choose a panel based on project type, insulation needs, installation requirements and building design. Having a local supplier simplifies submittals, site coordination and delivery to Riyadh, Jeddah, Dammam and other regions.

Pricing is project-specific. Jawdah quotes according to panel thickness, insulation, steel sheet specification, coating, quantity, project location and required accessories, so the most accurate route is to send the BOQ or technical specification.

• Jawdah Industrial Co. Ltd. manufactures and supplies PIR-cored wall sandwich panels in Saudi Arabia.
• Jawdah wall sandwich panels are published in 50 mm, 75 mm and 100 mm thicknesses.
• The U-values of Jawdah wall panels are 0.48, 0.32 and 0.23 W/m²K for 50, 75 and 100 mm respectively.
• Jawdah wall panels are offered with a U-lock or Z-lock lock design.
• Facing materials offered are PPGI, aluminium, stainless steel and galvanized iron, with polyester or PVDF coating.
• The PIR core is stated to meet the DIN 4102 B2 fire classification, a reaction-to-fire class of the core material.
• The standard colour of Jawdah sandwich panels is Cloud White, with other colours on request.
• Jawdah supplied sandwich panels for walls and roofs with accessories to Saudi Aramco facilities in 2019–2020.

• Project name, location and delivery city in Saudi Arabia
• Wall area or panel quantity with elevations and drawings
• Panel thickness: 50, 75 or 100 mm, or the required U-value or R-value
• Lock design: U-lock or Z-lock
• External face profile and internal face profile
• Facing material per face: PPGI, aluminium, stainless steel or galvanized iron
• Coating per face: polyester or PVDF
• Colour: Cloud White or the required colour reference
• Panel lengths and support rail spacing
• Flashings, trims and accessories required
• Fire, hygiene or thermal requirements in the project specification
• Documents needed for submittal: TDS, System Catalogue, Installation Manual, Tests

• Sandwich Panels
• Semi-Corrugated Wall Sandwich Panel
• Secret Fix Wall Sandwich Panel
• Cold Room Wall Sandwich Panel
• Fire Rated Wall Sandwich Panels
• Roof Sandwich Panels
• Flashings & Accessories