Manthorpe Felt Lap Vent Stops - White

Name: Manthorpe Felt Lap Vent Stops - White
Brand: Manthorpe
SKU: fek4jbyewd
Availability: InStock

The Manthorpe Felt Lap Vent is a refurbishment product designed to increase the amount of ventilat...

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Product Information

Full details

This guide is for homeowners and builders seeking to improve roof ventilation and prevent condensation. The Manthorpe Felt Lap Vent is designed for easy installation and effective airflow, offering a practical solution for roof maintenance. A key consideration is ensuring proper fit within the joist openings for optimal performance.

All features

Colour	White
Model Part Number	G630
Brand	Manthorpe

Extended Product Information

FAQs

How many vents do I need?

The number of vents needed depends on the size and design of your roof. Consult with a building professional or follow building regulation guidelines for proper ventilation.

Can I install these from outside the roof?

No, the Manthorpe Felt Lap Vent is designed to be installed from inside the loft.

What tools do I need?

You may need a utility knife or scissors to make small adjustments to the felt, but no special tools are generally required.

What if my felt is very old?

The felt clips help to secure the vent, but if the felt is severely degraded, you might consider using additional fixings like staples or roofing nails to ensure a secure fit.

Is this product suitable for new roofs?

While the product is primarily designed for refurbishment, it can be used in new roofs, but the installation process will vary.

What is the airflow provided per unit?

Each unit provides 3000mm² of airflow.

Troubleshooting

Vent not staying in place

Ensure the felt clips are properly engaged with the felt. If the felt is severely degraded, consider using additional fixings.

Reduced airflow

Check for any obstructions, such as insulation or debris, blocking the vent openings. Ensure vents are not covered.

Pros and Cons

Pros

Simple installation process.
Helps prevent condensation and moisture buildup.
Suitable for a range of joist sizes.
Secure design with felt clips.
Improves overall roof health.

Cons

Requires access to the loft space for installation.
Ventilation improvement is dependent on proper installation.
May require some felt manipulation during installation.
Airflow is limited to the capacity of the unit.

Setup, Compatibility & Care

Setup

Access your loft space.
Locate the felt laps in your roof.
Insert the vent between the felt laps.
Ensure the three felt clips secure the vent in place.
Repeat the process, spacing the vents as needed.

Compatibility

The Manthorpe Felt Lap Vent is compatible with joist openings between 400mm and 600mm. It's designed for use with existing felt roofing systems.

Care

These vents are maintenance-free, but it’s a good idea to inspect them periodically to make sure they haven't been dislodged during roof work or severe weather events. Ensure that the vents are clear of any obstructions like insulation or debris.