Interlocking-Panel 25 mm wall cladding and soffit lining.


Express panelsInterlocking panel is a modern concealed- fix cladding systems with an attractive recess or express joint between panels. The express joint can be adjusted to suit the application and design of the project. From as little as 5 mm to as wide as 30 mm the joints can alter the entire appearance of a large flat expanse of metal.

Standard panel widths are 200 mm 250 mm or 300 mm. However the panels can also be manufactured in various widths giving a modern random effect. Three panels in varying width are quite fashionable at present.

With all the above options, together with staggered joints or splayed applications the Interlocking panel is the obvious choice for cladding where a long, thin, flat appearance is required.


– Material Thickness: 1.0 mm.
– Standard Panel Width (Centre to Centre – C.T.C.): 309 mm.
– Width of Joint: from 5 mm to 18 mm.
– Maximum Panel Length: from 0.5 m to 6 m.
– Panel Height: 25 mm.


Top Hat substructure (usually 1.15 mm thick galvanized steel subject to substructure engineering) fixed at a maximum of 600 mm centres—subject to required wind loading.

Maximum Length: 6 m due to the length of the pre-slotted fixing points and the thermal properties of the material.


Installation to be carried out by a duly authorized and trained installer. All fixings to be concealed and tolerance for material thermal movement must be allowed for during installation. Due to the design –Interlocking Panel – is in essence a rain screen and requires diligent installation. We recommend installing a “breathable vapour” membrane behind the top-hat substructure to act as a second line of defense to stop any water ingress as well as allowing the building to “breathe”. Flashings associated with the installation are available from Industry Cladding and Roofing and7 must be fixed in the traditional concealed method with allowance for thermal expansion.