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Professional Building Supplies£44.60Visit shop Tamlyn Grey Fibre Cement Cladding Aluminium External Corner - 3Mtr Granite
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The Tamlyn Aluminium External Corner (XT-EXC-GG) is a professional-grade finishing profile designed for contractors and DIY enthusiasts installing fibre cement cladding. Its primary benefit is providing a clean, durable 90-degree finish that effectively masks plank ends while protecting corner joints from moisture ingress. A critical caveat is that installers must maintain a minimum 5mm gap between the cladding plank and the profile to ensure adequate water drainage, as failing to do so may compromise the long-term integrity of the building envelope.
| Model Part Number | XT-EXC-GG |
|---|---|
| Brand | Tamlyn |
Yes, it is designed for standard fibre cement cladding, provided the plank thickness fits within the profile's receiving channel.
Yes, the aluminium can be painted if you wish to change the color, though the factory-applied Granite Grey is highly durable.
The gap is essential for the rainscreen principle, allowing water that gets behind the cladding to drain out at the bottom of the wall.
A miter saw with a non-ferrous metal blade or a hacksaw with a fine-tooth blade is recommended for a clean cut.
No, you should use exterior-grade, stainless steel fasteners suitable for the specific substrate you are attaching to.
No, this specific profile is engineered exclusively for external 90-degree corners.
Verify that a 5mm drainage gap exists between the plank and the profile and check that the weather resistive barrier is installed behind the corner.
Check the corner studs for squareness. If the framing is out of plumb, you may need to shim the profile before fastening.
Use color-matched trim-head screws to minimize visibility or position fasteners so they are partially obscured by the cladding planks where possible.
To set up, ensure your corner studs are plumb and the building paper/weather resistive barrier is properly overlapped. Secure the profile using corrosion-resistant screws through the pre-slotted holes or by drilling where necessary. This product is compatible with most standard fibre cement cladding thicknesses. For care and maintenance, periodically inspect the caulking line between the plank and the profile. If the sealant has cracked or deteriorated, remove the old material and re-apply a high-quality, exterior-grade polyurethane sealant to maintain the integrity of the drainage path. Keep the surface clean by washing with mild soap and water annually to preserve the finish.
