Soffit Vent Strip - 50mm x 2.5mtr - Black - G800BL

Name: Soffit Vent Strip - 50mm x 2.5mtr - Black - G800BL
Brand: Manthorpe Building Products
SKU: atddw2ylpa
Availability: InStock

The G800 Continuous Soffit Ventilator is designed to provide a reliable solution for roof ventilat...

Best current price£5.23from Professional Building Supplies

Best offers

Shopping.co.uk recommended and popular offers

Lowest priceMost popular

Professional Building Supplies£5.23Visit shop

Manthorpe Building Products Black Soffit Vent Strip - 50Mm X 2.5Mtr

Visit shop

All Offers

2 offers from £5.23

View price history by clicking the chart icon.

Professional Building SuppliesManthorpe Building Products Black Soffit Vent Strip - 50Mm X 2.5Mtr

Free delivery in 1–3 days

£5.23

Visit shop

PVC Cladding UKManthorpe Building Products Black Soffit Vent Strip - 50Mm X 2.5Mtr

Free delivery in 1–3 days

£5.23

Visit shop

Product Information

Full details

The Manthorpe G800 Continuous Soffit Ventilator is an ideal choice for roofers and homeowners looking to improve roof space airflow in projects using traditional soffit boards. It provides a consistent 25,000mm²/m airflow path to prevent condensation and structural damage, though it requires precise planning during the fascia installation phase to ensure the board thickness aligns correctly with the ventilator mouth.

All features

Model Part Number	G800BL
Brand	Manthorpe Building Products

Extended Product Information

FAQs

What is the airflow capacity of the G800?

The G800 provides an airflow equivalent to a continuous 25mm air gap, or 25,000mm²/m.

Can this be used with timber soffits?

Yes, as long as the timber soffit thickness falls within the 4mm to 12mm range.

Does this prevent insects from entering the roof?

Yes, the slot design is engineered to allow air to pass while preventing the entry of large insects.

Is the G800 visible from the ground?

No, when installed correctly behind the fascia, the ventilator is neatly concealed.

How long is each length of the G800?

Each strip is supplied in a 2.5-meter length.

Does it need to be painted?

No, the black material is designed to be durable and resistant to environmental factors; painting is not required and could potentially clog the ventilation slots.

Troubleshooting

Soffit board will not fit into the ventilator mouth

Check that the board thickness does not exceed the 12mm limit and ensure no debris is obstructing the internal slot.

Ventilator feels loose after installation

Ensure the soffit board is properly secured to the wall or structural supports, as the tension of the board in the mouth keeps the G800 firmly in place.

Pros and Cons

Pros

Ensures compliance with essential building ventilation standards
Protects roof structure by reducing harmful condensation
Engineered to remain clear of debris and paint buildup
Durable design suitable for long-term exterior use
Easy to integrate with standard 4mm to 12mm soffit boards

Cons

Requires specific fascia board alignment during initial setup
Not suitable for soffit boards thicker than 12mm
Installation is best performed during roofline construction or replacement

Setup, Compatibility & Care

Installation of the G800 involves aligning the product with the rear of the fascia board. Ensure the soffit board is cut to the appropriate width so it can slide securely into the ventilator mouth. The strip is compatible with any soffit material between 4mm and 12mm thick. Once in place, the soffit board should be fixed to the wall or support brackets to lock the ventilator into position. Regarding care, the G800 is low maintenance; the engineered slots are designed to be self-clearing, but periodic inspection during routine gutter cleaning is recommended to ensure no major blockages have occurred.