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Professional Building Supplies£32.38Visit shop Tamlyn Black Fibre Cement Cladding Aluminium Internal Corner - 3Mtr
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The Tamlyn Aluminium Internal Corner (XT-INC-MB) is designed for professional builders and DIY enthusiasts working with fibre cement cladding in 90-degree internal corners. This 3-meter profile serves as a critical structural trim that ensures a clean, finished appearance while effectively managing water runoff to protect the building envelope. A primary caveat to keep in mind is that proper installation requires a mandatory 5mm clearance between the cladding plank and the internal corner profile to allow for potential thermal movement and moisture regulation.
| Model Part Number | XT-INC-MB |
|---|---|
| Brand | Tamlyn |
While the factory-applied black finish is durable, you can use a high-quality metal primer and exterior-grade paint if a specific color match is required.
Caulking is optional but recommended as a secondary weather seal to maintain the integrity of the cladding system.
This product is engineered specifically for fibre cement cladding systems; it may not be suitable for the expansion characteristics of wood.
Use a mitre saw with a non-ferrous metal blade for the cleanest edges and highest precision.
No, this profile is specifically shaped for internal 90-degree corners. You should use a designated external corner trim for outside building edges.
Ensure the 5mm clearance requirement is not exceeded. If gaps are excessive, check that the profile is plumb with the corner studs.
Remove the board and trim the edge slightly to restore the 5mm required clearance gap.
Verify the bottom of the profile is clear of obstructions to allow water to drain away freely at the base.
Installation requires basic metal cutting tools, such as a mitre saw with an aluminium-rated blade or a high-quality hacksaw. Always ensure your wall substrate is level before installing the profile, as any deviations in the framing will be magnified by the rigid metal trim. For compatibility, this trim is designed for standard fibre cement boards; ensure your board thickness does not exceed the profile's depth. Regarding care, the black powder-coated finish is low-maintenance. If dust or debris accumulates, wipe the profile down with a soft, damp cloth and mild soap. Avoid abrasive cleaners or harsh solvents that could strip the finish. If you choose to apply a caulking line for extra weather sealing, ensure the sealant is compatible with both aluminium and fibre cement products.
