175mm x 20mm Sumo White Square Fascia Board 5m Image

175mm x 20mm Sumo White Square Fascia Board 5m

SKU: PM175W

Brand: Swish Building Products

Heavy-Duty Design: 20mm thick fascia board engineered to support eaves tiles and guttering without backing boards.
Direct Fixing: Fixes straight to the rafter foot for strong, reliable installation.
Versatile Profile: Compatible with both inclined and flat soffit applications.
No Timber Required: Eliminates the need for timber backing boards or tilt fillets.
Certified Quality: BBA certified for proven durability and long-term performance.

Description

175mm x 20mm Sumo White Square Fascia Board – 5m

Durable, Maintenance-Free Roofline Fascia with 20-Year Guarantee

The 175mm x 20mm Sumo White Square Fascia Board (5m) is a jumbo fascia board designed for both replacement and new-build projects. At 20mm thick, this fascia is strong enough to carry the weight of eaves tiles and guttering without requiring a timber backing board, making it a cost-effective and time-saving solution.

With its square-edged profile and rectilinear section, the board replicates the look of traditional timber fascias while delivering the superior durability and low-maintenance benefits of modern cellular uPVC. A rebated return leg (35mm wide) allows for simple push-fit installation with flat or ventilated soffit boards, while the design also supports inclined soffit constructions.

BBA certified and backed by a 20-year guarantee, this fascia board ensures long-lasting protection for your roofline.

✅ Key Features & Benefits

Jumbo 20mm Thickness – Carries guttering and eaves tiles without backing board support.
Square-Edge Profile – Modern, rectilinear section for a neat, professional finish.
Versatile Installation – Accommodates flat, ventilated, or inclined soffits.
Durable & Low Maintenance – Rot-proof, weather-resistant, fire-resisting, and will not warp, flake, or peel.
Eco-Friendly – Manufactured without CFCs, lead, or cadmium; fully recyclable.
Certified Quality – BBA approved, Kitemark certified, and compliant with ISO 9001, 14001, 45001 & 50001.
Long-Term Protection – 20-year manufacturer’s guarantee.

📏 Specifications

Product Type: Jumbo Fascia Board
Size: 175mm x 20mm
Length: 5m
Profile: Square edge, rectilinear section
Return Leg: 35mm wide with rebate for soffit boards
Colour: White
Certification: BBA approved, BS 7619:2021, ISO standards
Guarantee: 20 years

✨ Secure, stylish, and sustainable. The 175mm x 20mm Sumo White Square Fascia Board delivers all the strength of timber without the upkeep—perfect for any roofline project.

Technical Information

Lead Time: Into Order 3-5 Days
Delivery: 1-2 Working Days
Size: H175mm (covers 165mm) x L5000mm x D20mm with 35mm Bottom Return Leg
Weight: 7.19 Kg
Brand Name: Swish Building Products
Material: PVC-u
Guarantee: 20 Years Manufacturers

Delivery & Returns

Delivery

The despatch timings we publish are estimates and due consideration needs to be made when making purchases with tight deadlines and as such we shall not be liable for any losses, costs, damages, charges, or expenses caused by any delay for delivery of the goods.

Returns Policy For Brissco Online

We appreciate that there may be occasions you may wish to return items. To help you with this process please see our returns policy below.

Returning an item – Damaged

In the event you receive damaged goods we will arrange a replacement item for you. However, it is your responsibility to notify us within 72 hours of receipt that an item has been received damaged (please see risk below).

Returning an item – Risk

On receipt of the delivery you, the customer, are responsible for those goods and any loss or damage to the goods shall be at your own risk.

Returning an item – Incorrect

If you receive incorrect goods it is your responsibility to notify us within 72 hours of receipt at which point we will make the necessary arrangements.

Delivery shortages

Firstly, our carrier delivers parcels/packages. Any shortages of them must be reported to the driver on receipt. Secondly, shortages of contents of the parcel(s)/package(s) against the enclosed Brissco advice note must be made within 72 hours.

PDFs

FAQs

1. What is the safest way to access a work area when installing fascia boards or cladding?

Always use a full scaffold platform or a purpose-made cantilevered deck system with guard rails. Never attempt to work from an unsupported ladder or unstable surface.

2. How should boards be stored and handled?

Boards should be loaded and unloaded by hand, with both ends of a 5m length supported. They should be stacked no higher than 1m, in their packing sleeve, on a flat base, and kept away from solvents, paint, creosote, and bitumen.

3. What tools are recommended for cutting or shaping?

Conventional carpentry tools, including fine-toothed saws, can be used. Power tools may also be used at speeds suitable for timber. Pre-drilling is not necessary for nail or screw holes.

4. Can fascia boards support roof tiles?

Yes, Summit Sumo 20mm and 16mm boards, including foiled boards, can support the weight of the lower row of tiles without requiring a tilt fillet or kick plate.

5. What type of fixings should be used?

A4 grade stainless steel plastic-headed nails or capped screws should be used to ensure durability and resistance to corrosion.

6. What are the fixing guidelines for cover boards and cladding?

9mm Cover Boards: Nails (50mm) or screws (40mm), max centres 600mm (white) or 400mm (foiled/coloured).
20mm and 16mm Boards: Nails (65mm) or Nails (50mm), max centres 600mm (white) or 400mm (foiled/coloured).
Flat Boards: Nails (40mm) or screws (40mm).
Cladding: Nails (30mm), max centres 400mm. Ensure plank ends are always nailed.

7. What expansion gaps are required during installation?

A minimum 4mm gap must be left at the end of each board. Where two boards meet, leave an overall 8mm expansion gap.

8. Which sealants should be used?

A low modulus silicone (BS 5889 Type A) should be used. A primer is required when bonding to GRP, stainless steel, aluminium, or untreated wood. Sealants should not be used with polycarbonate sheets.

9. How should asbestos be dealt with if encountered?

By law, asbestos materials must be removed only by trained operatives under controlled conditions. If asbestos is suspected, contact your Local Authority.

10. Why is ventilation important in roof voids and cladding installations?

Ventilation prevents condensation of warm air on cold surfaces, which can lead to rot and mould. For foiled cladding, a free air path must be provided between vertical battens, with ventilation continuity achieved by venting into the eaves or leaving a 10mm gap between the cladding and soffit.