Sandwich Panel - Insulation System

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EPS & Jumbolon Core Material for Sandwich Panel Walls — Pakistan 2026

A sandwich panel is really just a name for an insulation core sandwiched between two facing surfaces. We supply the EPS and Jumbolon (XPS) core sheets that go into that build-up — for builders constructing insulated cold room walls, partition walls, and shed cladding on site in Pakistan.

WHAT "SANDWICH PANEL" ACTUALLY MEANS

Let's Be Clear About What We Supply

A “sandwich panel” is a construction term for any wall or roof build-up where an insulation layer sits in the middle, between two outer surfaces — like a sandwich. Big industrial suppliers run factory lines that roll-bond steel or aluminum skins directly onto a foam core, producing one finished, ready-to-bolt-on metal panel. That’s a specific, capital-heavy manufacturing process.

What we supply is the core material — EPS Thermocol and Jumbolon (XPS) sheets — cut to the size and density your project needs. Builders and contractors use these as the insulating layer in cold room walls, partition walls, ceilings, and shed cladding, fixed between cladding sheets or masonry on site. It’s a more flexible and affordable approach for most site-built projects.

Why Site-Built Beats Factory Panels for Most Projects:

CHOOSING THE CORE MATERIAL

EPS or Jumbolon Core — Which One for Your Wall Build-Up?

🧱 EPS Thermocol Core

The standard choice for partition walls, false ceilings, and dry-area shed cladding. Affordable, easy to cut to size on site, and performs well as long as the build-up isn’t exposed to constant moisture.

See EPS / Thermocol Pricing →

🟦 Jumbolon (XPS) Core

The right call for cold room walls and any build-up that will see ongoing condensation. Higher R-value per inch means a thinner core can match what a thicker EPS core would need.

See Jumbolon Pricing →

What we usually recommend: EPS core for general partition walls, false ceilings, and dry shed cladding. Jumbolon core for cold room walls and anywhere the build-up will sit against condensation long-term.

WHAT ARE YOU ACTUALLY TRYING TO QUIET DOWN

What Are You Actually Trying to Quiet Down?

🎤️

Recording Studio or Home Theater

Go with glass wool or rock wool panels on walls and ceiling. This is the one application where EPS genuinely isn’t the right tool for the job.

🏢

Office Partition Walls

Glass wool inside partition cavities cuts down conversation noise between rooms far better than foam board alone.

🏠

Bedroom Near a Busy Road

If heat is also a problem, EPS or PU Foam on the roof gives you cooling plus a modest noise dampening bonus — a reasonable two-birds option.

🏭

Factory or Generator Room

Rock wool is the standard here — handles both the noise and the heat from machinery, plus it’s fire-resistant around hot equipment.

🐔

Poultry Shed Near Residential Areas

EPS roof insulation (which you likely need anyway for temperature control) plus rock wool wall lining if noise complaints are an issue.

🎬

Cinema, Event Hall, or Auditorium

Rock wool acoustic panels combined with proper wall framing — this is a job worth getting an acoustic-specific recommendation for, not a generic insulation order.

FAQ

Common Questions About Sandwich Panel Core Material

Do you manufacture finished metal sandwich panels, or just the core?

We supply the insulation core — EPS Thermocol and Jumbolon (XPS) sheets — cut to the size and density your project needs. We don’t run a factory line that bonds metal skins to foam to produce a finished, ready-to-bolt-on panel. Our material is typically fixed between cladding sheets or masonry on site by your contractor, which works out more flexible and affordable for most small-to-mid sized projects.

Is site-built insulation as good as a factory sandwich panel?

For the right project, yes. The insulation performance comes from the core material and how well it’s fitted and sealed, not from whether it was bonded in a factory or assembled on site. A well-built site installation with properly sealed joints performs comparably to a factory panel for most cold room, partition, and cladding applications — at a lower cost and without the minimum order volumes factory panels usually require.

Should I use EPS or Jumbolon for my wall build-up?

EPS is the more affordable, standard choice for dry-area partitions, false ceilings, and shed cladding. Jumbolon (XPS) is worth the extra cost for cold room walls or anywhere the build-up will be exposed to ongoing condensation, since it holds its insulating value much better over years of moisture exposure.

Can you cut the core material to custom sizes for our wall design?

Yes — that’s actually the main advantage of going this route instead of factory panels. Tell us your wall dimensions and we’ll cut sheets to match, rather than you having to design your build-up around fixed factory panel widths.

What thickness should I use for a cold room wall versus a regular partition?

For a regular dry partition wall, 1–2 inch EPS is usually enough. For a cold room wall, we’d typically recommend 3-inch Jumbolon or high-density EPS, depending on your target temperature. Tell us the intended use and we’ll recommend a specific thickness rather than guessing.

Do you supply outside Lahore for construction projects?

Yes — same-day dispatch from our Lahore factory, with 1–3 day delivery to Karachi, Islamabad, Faisalabad, Multan, and other major cities. For larger construction projects, we can discuss phased delivery to match your build schedule.

Building an Insulated Wall or Cladding System?

Tell us your wall type, dimensions, and whether it’s a dry or cold-room application — we’ll recommend EPS or Jumbolon and the right thickness.