Description
The Freefoam 10mm Pre-Vented uPVC Soffit Board is designed for roofers and builders who need to finish the underside of the eaves while also providing continuous roofline ventilation. Ventilation slots are already formed into the board, so there is no need to cut individual circular vents into a standard solid soffit.
Supplied in 5 metre lengths and available in a wide choice of widths, the board combines the clean appearance of a solid soffit with built-in airflow. It is particularly useful on replacement rooflines and new-build eaves where ventilation is required to help reduce the risk of moisture becoming trapped within the roof space.
Why Choose Freefoam Pre-Vented Soffit?
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Ventilation built into the board
Pre-formed slots provide a continuous air path along the roofline, removing the need to add separate individual soffit vents.
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10mm solid uPVC construction
Gives the underside of the eaves a clean, substantial finish rather than the panelled appearance of hollow soffit.
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5 metre lengths
Long boards help reduce unnecessary joints across straightforward roof runs.
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Widths for shallow and deep soffits
Options range from narrow domestic eaves through to much deeper roof overhangs and box-end details.
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Low-maintenance roofline finish
No routine sanding, staining or repainting is required.
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Can be cut on site
Easy to trim to the required soffit depth and roofline dimensions using suitable fine-toothed cutting tools.
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White and selected coloured finishes
Coordinate the soffit with Freefoam fascia, guttering, windows and other exterior details.
What Does Pre-Vented Soffit Actually Do?
The soffit closes the underside of the roof overhang between the fascia and the external wall. On a ventilated roofline, that area also needs to allow the required airflow into the roof space.
Freefoam's Pre-Vented General Purpose Board combines both jobs in one product. The solid section finishes and protects the underside of the eaves, while the integrated ventilation slots create an airflow path along the roof edge.
Pre-Vented Soffit vs Standard Solid Soffit
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Pre-Vented GPB
Choose this where the roof design requires soffit ventilation and you want the vents already incorporated into the board.
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Solid General Purpose Board
Choose this where a non-vented soffit is appropriate or ventilation is being provided through another suitable method.
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Hollow Soffit
A lighter tongue-and-groove alternative that creates a more noticeably panelled appearance.
If ventilation is required, always make sure the chosen soffit solution provides the level of airflow specified for the roof construction.
Not every width is available in every colour. Select your required width and finish from the available combinations above.
How Is Vented Soffit Installed?
The board is fitted horizontally beneath the eaves between the fascia and the rear soffit support or external wall. It should be fixed to suitable, securely installed timber bearers or battens rather than left unsupported.
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Measure the soffit depth
Measure from the rear support position to the fascia before selecting the board width. -
Prepare adequate support
Make sure the soffit bearers are sound, straight and positioned correctly before installation. -
Keep the ventilation slots clear
Do not cover or obstruct the vented section with trims, insulation or other materials. -
Use compatible soffit trims
Appropriate wall, starter, joint and corner trims help support exposed edges and produce a tidy finish. -
Allow for thermal movement
uPVC naturally expands and contracts, so follow Freefoam guidance for fixing centres, joints and expansion allowances.
Choosing the Correct Width
The width refers to the overall depth of the soffit board. Measure the actual roof overhang rather than assuming a standard size, particularly on refurbishment work where dimensions can vary along an older property.
Narrower boards suit compact eaves, while 300mm and wider options are useful for deeper soffits, larger overhangs and box-end construction.
Product Specifications
- Brand: Freefoam
- Product type: Pre-vented uPVC soffit / Vented General Purpose Board
- Length: 5000mm / 5m
- Thickness: 10mm
- Ventilation: Integrated pre-vented slots
- Available widths: 100mm to 605mm
- Material: PVC-U / uPVC
- Application: Ventilated eaves, soffits and roofline construction
Frequently Asked Questions
Do I need to add separate soffit vents?
The board already contains ventilation slots, so separate individual vents are not normally required where this board provides the ventilation specified for the roof design.
Is this different from normal Freefoam General Purpose Board?
Yes. Standard GPB is solid and non-vented. This version has the ventilation incorporated into the board.
Can I use it on a roof refurbishment?
Yes. It is suitable for appropriate replacement roofline work as well as new-build applications.
Can the 5m board be cut down?
Yes. It can be cut on site to suit the roofline, but take care not to unnecessarily remove or obstruct the ventilation area.
Do all colours come in every width?
No. White has the widest size availability, while Anthracite Grey Foil, Black Ash, Light Oak and Rosewood are supplied in selected widths.
What if I need more ventilation?
Freefoam also produces Double-Vented General Purpose Board for roof constructions requiring a different ventilation provision. The correct specification should be determined by the roof design and applicable ventilation requirements.
A Smarter Way to Vent and Finish the Eaves
Freefoam Pre-Vented uPVC Soffit Board takes two important parts of the roofline and combines them into one straightforward product: a clean soffit finish and built-in eaves ventilation. For roofers and builders, that means fewer separate components, a neater finished job and a broad choice of widths for everything from standard domestic eaves to deep roof overhangs.
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