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Swish Building Products - Roofline Systems & Ventilation

Fascias - Soffit - Roofline Systems - Ventilation - Fixing Methods

Roofline Systems & Ventilation

The Swish roofline range features all the necessary components for eaves and gable assemblies, including fascias, bargeboards, eaves soffits, as well as over fascia ventilation and protection. Matching PVC mouldings cater for all joints, corners and abutments.


All fascia profiles are available in a wide range of sizes and feature a groove for the engagement of soffit boards by simple push-fit. They can also be used in ‘open eaves’ situations where there is no soffit.

Fixing Methods

Jumbo and 16mm boards do not require a supporting backboard. They provide support at the eaves for the roof covering at all roof pitches.

Boards must be fixed to rafter ends at a maximum of 600mm centres using 2 x 65mm Trimtop nails.

Fix gutter brackets directly to Jumbo and 16mm boards using A4 stainless steel screws which should penetrate the inner face of the board.

Coloured Roofline Profiles

16mm square fascia boards are available in Mahogany, Light Oak, Irish Oak, Rosewood, Black, Anthracite Grey, Cream and White woodgrain effect finishes. Anthracite, Anthracite Grey, Hazy Grey and Light Grey profiles with a self-colour skin are also available.

A range of matching ventilated soffits, flat board soffits, corners, trims and fixings are also available.

Fixing centres for coloured profiles must not exceed 400mm.


Swish roofline systems allow ventilation of the roof void in accordance with Building Regulations for England, Wales, Scotland and Northern Ireland. Swish ventilators meet the recommendations of the 1989 edition of BS 5250:1975.

Through Soffit Ventilation

Ventilated soffit boards (Polo) are available in widths from 150mm to 605mm and feature a single or double row of slots for a 10mm or 25mm continuous air path respectively. A range of PVC strip ventilators in 10mm and 25mm air gap configuration can be used in conjunction with Swish Gee Pee™ or other soffit boards.

Over Fascia Ventilator

Over Fascia Ventilator C504 allows a continuous 10mm air path to be incorporated into new build applications in order to retain a clean appearance to the soffit line. Over Fascia Ventilator C505 allows a continuous 25mm air path.

Over Fascia Protection

Manufactured in 2.5m lengths from 100% recycled PVC, Jumbotec (C502) is designed for eaves protection. In refurbishment applications, it supports the felt behind the fascia and eliminates problems arising from deterioration of traditional roofing felts. A Vented Eaves Protector (C404) is available where both eaves protection and ventilation are required in one unit. A separate Bird Comb Attachment (C405) may also be incorporated into the assembly to stop small birds and larger insects entering under the eaves tiles.

Click the PDF image to view the technical information in full

Roofline Systems & Ventilation

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Swish Building Products
Pioneer House
Lichfield Road Industrial Estate
B79 7TF

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Tel: 01827 317200
Fax: 01827 317201

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