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Professional Building Supplies£34.74Visit shop Tamlyn Fibre Cement Cladding Aluminium Bottom Vent Strip - 25Mm X 3Mtr
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The Tamlyn Aluminium Bottom Vent Strip is designed for professional builders and cladding installers who need to ensure long-term structural integrity by promoting proper airflow behind fibre cement cladding systems. Its primary benefit is providing continuous ventilation while creating an effective barrier against insects and debris, though users should note that strict adherence to ground clearance guidelines is required to prevent moisture damage.
| Model Part Number | XT-BVS-25MM |
|---|---|
| Brand | Tamlyn |
This product is engineered for fibre cement systems, but may be compatible with other cladding types if the 25mm batten requirement is met.
This distance prevents splash-back from rain hitting the ground and keeps the cladding away from soil moisture, preventing rot.
Aluminium is naturally resistant to corrosion, making it highly durable for exterior use compared to plastic or steel alternatives.
If you cannot achieve this height, you must paint the rear of the bottom cladding plank to offer an extra layer of moisture protection.
The vent strip design itself acts as a barrier; ensure the strip is flush against the battens and correctly fastened to avoid gaps.
Clear away any soil, mulch, or vegetation built up near the base to maintain the 150mm clearance and free airflow.
Verify that your battens are exactly 25mm thick and that you are using the correct model (XT-BVS-25MM) for your specific installation.
Ensure the top of the cladding run is also vented and that no horizontal blocking is restricting air movement from bottom to top.
Installation requires mounting the vent strip at the base of your 25mm batten framework. Ensure that the first cladding plank is positioned 10mm below the profile for correct alignment. For optimal longevity, observe these safety distances: maintain a minimum of 150mm from the ground and 50mm from horizontal structures like roofs or balconies. If your design requires a ground clearance of less than 150mm, you must paint the rear of the bottom cladding plank to provide additional protection against moisture. Keep the vents clear of exterior debris or mulch to ensure the airflow remains unobstructed over time.
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