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Professional Building Supplies£4.58Visit shop Freefoam White Fascia External Corner Trim - 135 Degree 300Mm
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B&Q£15.20Visit shop B&Q - Freefoam White Upvc Fascia External Corner Trim 135 Degree 330mm50mm X 6mm
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The Freefoam 135 Degree Fascia External Corner Trim is designed for professional roofers and DIY enthusiasts who need a reliable solution to finish bay window roof installations. Its primary benefit is providing a clean, aesthetic finish while successfully concealing the mandatory 10mm expansion gap required for PVC fascias. Users should note that proper thermal management—using a combination of glue and low-modulus silicone—is essential, as improper installation can restrict necessary material movement during temperature fluctuations.
| Model Part Number | FWFX |
|---|---|
| Brand | Freefoam |
This trim is designed for 135-degree corners, often referred to as 45-degree corner trims.
No. You must use a dedicated PVC adhesive on one side and low-modulus silicone on the other.
No, a standard hacksaw or fine-toothed saw is sufficient for trimming it to size.
PVC expands and contracts with heat. The gap prevents the boards from warping or cracking when the temperature rises.
While designed for Freefoam systems, it is compatible with most standard PVC fascia profiles of matching dimensions.
This is likely due to the lack of an expansion gap. Ensure a 10mm gap exists behind the trim and verify that one side is held by silicone rather than rigid adhesive.
Use a fine-toothed saw or a dedicated PVC hand saw. Ensure the trim is clamped or supported securely to prevent vibrations during cutting.
Installation requires basic carpentry skills and measuring tools. Ensure your 10mm expansion gap is consistent across the entire corner before fitting the trim. If the gap is too small, the material may buckle; if too large, the trim may struggle to cover the opening.
Care is minimal; simply wipe the trim down with a damp cloth and mild soap during regular roofline maintenance to remove dirt or debris.
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