Fascia Double End Joint Trim - 600mm x 47mm

The Fascia Double End Joint Trim is designed to effectively conceal the 10mm expansion gap require...

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Product Information

Full details

The Fascia Double End Joint Trim is designed for professional contractors and DIY enthusiasts who need to bridge and conceal 10mm expansion gaps between UPVC fascia boards. This durable trim provides a clean, uniform finish while accommodating the thermal expansion and contraction of plastic components; however, users must strictly follow specific bonding techniques for one side of the joint to ensure the long-term structural integrity of the roofline installation.

All features

Model Part Number	FWJJ
Brand	PBSL Group

Extended Product Information

FAQs

Can I use super glue to install this trim?

No, do not use super glue. Use a specific high-quality adhesive for one side and a low modulus silicone for the other to allow for thermal movement.

Why is the 10mm gap necessary?

UPVC expands and contracts as ambient temperatures fluctuate. Without this gap and the flexible trim, the fascia boards could warp or buckle.

Can I cut this trim with a power saw?

While a hacksaw is recommended for precision and safety, a fine-toothed power saw can be used if appropriate safety gear is worn and the trim is properly clamped.

What is the purpose of low modulus silicone?

Low modulus silicone remains more flexible than high modulus variants, making it ideal for joints that need to accommodate movement.

Can this be painted?

These trims are designed with a finished surface; painting is generally not recommended as it may interfere with the expansion properties and weather resistance.

Troubleshooting

Trim appears to be buckling

Verify that both sides of the trim were not glued down. Only one side should be fixed; the other must move freely in the silicone.

Silicone is pulling away from the board

Ensure the surface was cleaned with a solvent-based cleaner to remove grease and dust before applying the sealant.

Pros and Cons

Pros

Efficiently conceals necessary thermal expansion gaps
Provides a clean and uniform aesthetic finish
High-quality weather-resistant UPVC material
Easily cut to length with standard hand tools

Cons

Requires specific adhesive and sealant knowledge
Not suitable for load-bearing applications
Must be installed with specific movement allowance

Setup, Compatibility & Care

Setup: Measure the height of your fascia board to ensure the 47mm profile matches your current installation. Ensure the gap between boards is exactly 10mm before attaching the trim.
Compatibility: Compatible with standard UPVC fascia boards that require an expansion gap. Ensure that your chosen adhesive and low modulus silicone are specifically formulated for use with rigid PVC plastics.
Care: Periodically inspect the silicone seal during regular roofline maintenance. If the sealant appears to be peeling or cracking due to prolonged UV exposure, clean the area and re-apply a fresh bead of low modulus silicone to maintain weatherproofing.