Fascia External Corner Trim - 135 Degree 300mm

Name: Fascia External Corner Trim - 135 Degree 300mm
Brand: Freefoam
SKU: 3qfghe7myh
Availability: InStock

135 Degree corner trims are used to hide the 10mm expansion gap that should be left between two bo...

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Product Information

Full details

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.

All features

Model Part Number	FWFX
Brand	Freefoam

Extended Product Information

FAQs

What is the degree angle of this trim?

This trim is designed for 135-degree corners, often referred to as 45-degree corner trims.

Can I use standard wood glue for this?

No. You must use a dedicated PVC adhesive on one side and low-modulus silicone on the other.

Do I need special tools to cut it?

No, a standard hacksaw or fine-toothed saw is sufficient for trimming it to size.

Why is the 10mm gap necessary?

PVC expands and contracts with heat. The gap prevents the boards from warping or cracking when the temperature rises.

Is this suitable for all fascia brands?

While designed for Freefoam systems, it is compatible with most standard PVC fascia profiles of matching dimensions.

Troubleshooting

Trim is bowing or pulling away from the corner.

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.

Difficulty getting a clean cut.

Use a fine-toothed saw or a dedicated PVC hand saw. Ensure the trim is clamped or supported securely to prevent vibrations during cutting.

Pros and Cons

Pros

Specifically designed for awkward 135-degree angles
Easily cut to size with basic hand tools
Provides a clean, finished appearance for roofline projects
Durable, weather-resistant PVC construction

Cons

Requires specific adhesive/sealant application for thermal expansion
Only suitable for 135-degree applications
Requires precise measurement to ensure the 10mm gap is hidden

Setup, Compatibility & Care

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.

Installation Steps:

Measure the vertical height of the corner and mark your trim.
Cut the trim using a fine-toothed saw or hacksaw to ensure a smooth, burr-free edge.
Apply PVC glue to one side of the joint.
Apply low-modulus silicone to the other side to allow for thermal expansion.
Press firmly into place and wipe away any excess silicone immediately.

Care is minimal; simply wipe the trim down with a damp cloth and mild soap during regular roofline maintenance to remove dirt or debris.