Say goodbye to attic condensation issues with the Manthorpe G630 Felt Lap Vent. This efficient and durable vent is designed to improve airflow under roofing felt, combating moisture and reducing the risk of damp or mold. With a user-friendly clip-on design, the G630 integrates seamlessly with traditional roofing setups, offering a reliable solution for loft and roof ventilation needs.
Key Features
Enhanced Ventilation: Allows air to circulate under felt laps, helping to eliminate moisture buildup.
Simple Installation: Clips securely into place without requiring specialist tools.
Built to Last: Made with durable materials to endure varying weather conditions.
Effective Condensation Control: Protects loft and roof spaces from the harmful effects of trapped moisture.
Universal Compatibility: Works with most standard roofing felts, making it a versatile option for residential and commercial use.
Why Choose Manthorpe G630?
Trusted Brand: Manufactured by Manthorpe, a leader in roofing and ventilation solutions.
Affordable Maintenance: Prevent costly repairs by addressing moisture issues early.
Energy Efficiency: Maintains insulation effectiveness by reducing condensation.
Reliable Protection: Safeguard your property from structural damage caused by mold and dampness.
Ensure the felt lap is clean and free from debris for a secure fit.
Position vents evenly along the roof for optimal airflow.
Use multiple vents for larger roof spaces requiring enhanced ventilation.
How to Calculate the Number of Felt Lap Vents You Need
To determine how many Manthorpe G630 vents you need, follow this formula:
Select the Desired Airflow Rate: Choose an airflow rate suitable for your roof's requirements.
Divide the Roof Length by Spacing: Use the spacing values (in meters) below.
Airflow Rate (mm²/m)
Felt Lap Spacing (meters)
3000 mm²/m
1.0
6000 mm²/m
0.5
9000 mm²/m
0.25
Example Calculation: For a roof measuring 12 meters with a required airflow of 6000 mm²/m: 12 ÷ 0.5 = 24 vents
You’ll need 24 Manthorpe G630 Felt Lap Vents, evenly spaced along the roof.
For Higher Airflow Needs: If your roof requires more than 9000 mm²/m, halve the spacing for every additional 3000 mm²/m airflow required.
Upgrade Your Roof Today!
Protect your roof and attic with the Manthorpe G630 Felt Lap Vent. Its effective design ensures superior airflow and condensation control, keeping your property safe and dry. Don’t let moisture cause damage—invest in the Manthorpe G630 for long-lasting peace of mind.
