Bullnose Fascia Board - 405mm x 18mm x 1.25mtr - FMR405.125

Name: Bullnose Fascia Board - 405mm x 18mm x 1.25mtr - FMR405.125
Brand: Marsh
SKU: 7wmxl6uqma
Availability: InStock

The Marsh Bullnose Fascia Board measures 405mm wide and 18mm thick, designed specifically for use ...

Best current price£16.12from Professional Building Supplies

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Product Information

Full details

The Marsh Bullnose Fascia Board (405mm x 18mm) is an essential component for professional roofline installations, specifically engineered for use as a box end board. It is ideal for contractors and builders looking to create a clean, durable finish where barge boards meet fascia. While it provides excellent structural efficiency by eliminating the need for backing boards, its specific width and profile are tailored for precision cuts, requiring careful measurement before installation.

All features

Model Part Number	FMR405.125
Brand	Marsh

Extended Product Information

FAQs

Do I need a backing board with this product?

No, this board is specifically designed to be fixed directly to the rafter ends.

What is the primary use for a 405mm board?

It is mainly used as a box end board where wider material is needed to cover the junction of the barge board and fascia.

What type of nails should I use?

The manufacturer recommends using 2 x 65mm polytop nails at every rafter.

How wide is the board?

The board measures 405mm in width.

Can I use this on any roof?

It is designed for standard roofline rafter configurations; consult a professional if your roof structure is non-standard.

What is the benefit of the rear rebate?

The rebate allows the soffit board to tuck neatly into the fascia, creating a cleaner look and a more secure weather-resistant joint.

Troubleshooting

Board bowing between rafters

Check that your rafter spacing does not exceed the recommended 600mm maximum.

Soffit is loose in the rebate

Ensure the soffit board is fully inserted into the rebate and consider a small amount of exterior-grade adhesive if movement persists.

Nails not holding securely

Verify that you are using the correct 65mm length nails and that they are driven into sound timber rafter ends.

Pros and Cons

Pros

Eliminates the need for expensive or cumbersome backing boards
Pre-rebated design saves time on soffit integration
Provides a wide surface area perfect for custom trimming at barge board junctions
Sturdy 18mm thickness ensures a robust roofline finish

Cons

Specific 405mm width may require waste management if not matched to roof pitch requirements
Requires professional-grade measuring to ensure accurate cuts for box ends
Limited to specific applications compared to standard narrow fascia

Setup, Compatibility & Care

For a secure and lasting installation, ensure the rafters are aligned and clean before application. Position the board so the rear rebate aligns perfectly with your soffit board path.

Installation Requirements

Fixing Method: Use 2 x 65mm polytop nails per rafter point.
Spacing: Maintain a maximum distance of 600mm between fixings to prevent bowing or wind load failure.
Compatibility: Designed for standard rafter-end roofline construction.

Care

Clean periodically with a mild detergent and water to remove grime. Inspect the fixings annually to ensure the polytop nails remain flush and have not been backed out by thermal expansion.