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Manthorpe Felt Lap Vents Review: Prevent loft condensation with an easy-fit solution

10 x Felt Lap Vents Prevents Loft roof Condensation. Attic Space Ventilation
4.6
[Condensation Prevention]  Reduces roof condensation and prevents moisture drops effectively.
[Pack of 10]  Value pack includes ten vents for multiple roof sections.
[Easy Installation]  Quickly slots between felt laps for hassle-free fitting.
[Loft-Friendly Fit]  Can be installed from inside the loft, no external access required.
[Protects Roof Structure]  Prevents moisture damage to roofing materials and extends insulation lifespan.
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Loft ventilation solution designed to prevent roof condensation and moisture drops, improving attic air quality. Peace of mind for homeowners worried about damp and stained insulation. Are Manthorpe Felt Lap Vents the straightforward, DIY-friendly fix your loft needs?

⚡ At a Glance
  • Ventilation Performance: Slots between felt laps allow airflow behind roofing felt to reduce condensation and moisture droplets
  • Best for: Homeowners and DIYers tackling loft condensation where felt laps are accessible from inside
  • Not ideal for: Roofs without felt laps or where felt laps cannot be reached from the loft

Pack of 10 felt lap vents slot between roofing felt laps to improve loft ventilation and reduce condensation. Installation can be completed from inside the loft for straightforward DIY fitting.


Prevent Loft Condensation - with felt lap vent design

Vents slide into the lap joints of roofing felt to create a continuous air path behind the felt, breaking up cold spots where moisture condenses. Air movement across the felt surface prevents droplets forming and dripping into the loft space.

Reduced condensation and fewer moisture drops on loft timbers and stored items, lowering the risk of damp-related damage.

Quick DIY Installation - with simple slot-fit design

Slim-profile vents slot between felt laps and can be positioned from inside the loft without external roof access. No specialised tools or tile removal are required for standard installations where felt laps are reachable.

Fast, low-skill fitting that householders can complete themselves, suitable for routine maintenance or targeted fixes.

Treat Multiple Bays at Once - with a pack of 10 vents

Multiple vents in a single pack allow placement along several lap joints to distribute airflow evenly rather than relying on a single vent point. Even spacing helps maintain consistent ventilation across a run of felt laps.

Ability to cover several roof bays in one visit reduces the need for repeat trips and provides broader condensation control.

✨ The 4 Key Reasons for Manthorpe Felt Lap Vents
  1. Pack of 10 vents - Treat multiple roof laps in a single installation, reducing repeat visits
  2. Slot-fit design - Slides between felt laps for a secure, low-profile fit
  3. Inside loft fitting - Allows installation from inside the loft, avoiding external scaffolding need
  4. Condensation control - Significantly reduces moisture drops and visible loft damp
📋 Technical Details at a Glance
  • Category: Loft ventilation
  • Brand: Manthorpe
  • Pack size: 10
  • Primary function: Prevents roof condensation and moisture drops
  • Fit type: Slots between felt laps
❓ Frequently Asked Questions

Q: How many vents are included?

A: The pack contains ten felt lap vents.

Q: Can the vents be installed from inside the loft?

A: Yes. The vents slot between felt laps and can be positioned from inside the loft for a straightforward fitting.

Q: Are these suitable for DIY installation?

A: Yes. User feedback highlights quick, easy DIY installation thanks to the simple slot-fit design.

🏆 Our Verdict

Suitable for homeowners and DIYers who need a practical way to reduce loft condensation and protect loft timbers. Simple slot-fit vents in a pack of ten allow straightforward inside-the-loft installation and broader coverage than single-point fixes. Affordable and cost-effective, the solution delivers long-term protection and reduced moisture-related issues.