Lay-In Metal Ceiling Tiles: Aluminium, Galvanised and Stainless Steel

Lay-in tiles are the most direct way to build a closed metal ceiling with full access to the void. Jawdah Industrial Co. Ltd. forms each tile with a turned-down edge that drops onto the visible flange of the T-grid, so the ceiling is installed by simply placing tiles into the grid modules, and any tile can be lifted out later to reach cables, ducts or valves.

The lay-in range covers five products: aluminium plain and perforated, galvanised steel plain and perforated, and stainless steel plain. All are produced in thicknesses from 0.4 mm up to 1.0 mm. This page gives a separate specification table for each material so that alloys, finishes and test references are never mixed.

A lay-in tile is a ceiling panel that is not fixed to its grid: it rests on the horizontal flanges of the main tees and cross tees by its own weight. The grid remains visible as a narrow line between tiles, 24 mm wide for T-24 and 15 mm wide for T-15. Because nothing holds the tile down except gravity and the grid geometry, access to the plenum is immediate and needs no tools.

Metal lay-in tiles keep their shape in humid rooms, accept frequent wiping, and arrive with a factory-applied finish. They are the practical default wherever a closed ceiling must be opened regularly, for example in retail units, corridors, computer rooms, kitchens and healthcare circulation.

The ceiling is built in three layers. Anchor bolts are fixed into the soffit and rod hangers are hung from them with adjustment clips to set the level. Main tees are clipped to the hangers, cross tees lock into the main tees to form the modules, and a wall angle closes the perimeter. Finally the tiles are tilted through the module opening and lowered onto the flanges.

Module size follows the cross tees: a Cross Tee 120 creates the long side of a 600x1200 mm module, and a Cross 60 subdivides it into 600x600 mm. Jawdah's T-grid lock design makes the grid module demountable without tools, which is useful when a light fitting or diffuser has to be repositioned.

Plain tiles give a smooth, unperforated face and a calm, continuous ceiling plane. Perforated tiles carry full circular perforation Ø 1.8 mm as standard with an acoustic black tissue on the back, which helps absorb sound energy instead of reflecting it into the room. Customised perforation sizes and designs are available on client request; perforation pattern and open area are selected per project.

Stainless steel lay-in tiles are offered plain only. Perforated tiles in aluminium and galvanised steel are offered in two sizes, while the plain versions add the 300x1200 mm format.

Jawdah manufactures the tiles and supplies the matching T-grid and hanging accessories, which helps avoid fit problems between tile edge and grid flange. Technical documents named for this product, including the Aluminium, Galvanised Steel and Stainless Steel Lay-In Ceiling Tiles Technical Data Sheets and the Metal Ceiling System Catalogue, are sent on request by the Jawdah team, and test reports are available in hard copy.

Stainless steel lay-in tiles are produced in grades 201 and 304 with a matte finish and a plain face. The Jawdah data lists the ASTM product standards for the steel and describes the raw material as fire resistant, moisture resistant and corrosion resistant with high thermal conductivity; it does not give a fire class, a humidity test or a light reflectance value for stainless steel, so none is stated here.

Across all three materials, every test value is labelled “raw material”. It describes the metal the tile is made from and is not a rating of the installed ceiling.

Choose T-15 when the grid line should almost disappear and T-24 when a conventional, robust exposed grid is preferred; the tile edge must match the chosen grid. Set out the module from the room geometry so that perimeter tiles are not cut to narrow slivers, and centre the grid on the main axis of the space.

In mixed ceilings, keep perforated tiles above occupied zones and plain tiles in circulation or service strips. Specify the same material and colour for both so the ceiling reads as one surface. Where hygiene or humidity drive the choice, weigh stainless steel or galvanised steel against aluminium using their own data rather than a common datasheet.

Lay-in tiles can be lifted, cleaned and replaced individually, which keeps maintenance local and quick. Wipe coated and stainless faces with mild detergent and a soft cloth, rinse lightly and dry; avoid abrasive pads that could scratch the finish. For perforated tiles clean only the face and keep the backing tissue dry. Store a small stock of spare tiles from the same batch for future replacements.

Plain aluminium lay-in tiles are listed for retail units and shopping centres, corridors and circulation areas, utility rooms, computer rooms, back-of-house areas, kitchens, bathrooms and other wet or humid areas. Plain galvanised steel tiles cover similar ground and add plant rooms and institutional interiors where a robust substrate is wanted.

Perforated lay-in tiles in aluminium or galvanised steel are listed for open-plan and cellular offices, meeting rooms, hospitals and clinics, schools and universities, airports and transport terminals, exhibition centres, sports halls and auditoriums. Stainless steel lay-in tiles are listed for bathrooms, kitchens, wet areas, halls, the food and beverage industry, hospitals, shops, airports and exhibition centres, and for laboratories where hygiene and easy cleaning are required.

Every Jawdah lay-in tile is listed with the same system contents: the tiles, the T-grid suspension system in T24 or T15, and the suspension accessories. The component dimensions below come from the Jawdah T-grid and ceiling accessories data.

Install and level the grid completely before tiles are placed, and complete above-ceiling services first so tiles are not handled repeatedly. Wear clean gloves when placing coated tiles to avoid marks on the finish. Keep perforated tiles dry so that the acoustic tissue on the back is not damaged. Jawdah's installation manual is available in hard copy for site teams.

Lay-in orders mostly go wrong on details that differ between materials. Check each line against the right table before issuing a purchase order.

Jawdah aluminium lay-in tiles are recorded in several public and commercial projects in the Kingdom. The references below are taken from the Jawdah project data for aluminium lay-in tiles; they describe the product used on each project and are not a general performance claim.

Aluminium lay-in tiles offer the widest range of colours and finishes. The values below are the Jawdah product data for plain and perforated aluminium lay-in tiles; fire, humidity, reflectance and vapour values apply to the raw material.

Galvanised steel lay-in tiles use a steel substrate complying with ASTM A653M, finished with powder or pre-painted coatings. Their fire and humidity references are specific to galvanised steel raw material and differ from the aluminium values above.

Lay-in tiles favour speed, economy and unrestricted access, at the cost of a visible grid line. If the design calls for a flush ceiling with no visible grid, or for custom tile lengths up to 3 m, compare with clip-in metal ceiling tiles. For the full overview of all ten tile variants, see metal ceiling tiles.