---
product_id: 599601152
title: "10 x Felt Lap Vents Prevents Loft roof Condensation. Attic Space Ventilation"
brand: "manthorpe"
price: "₨53902"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/599601152-10-x-felt-lap-vents-prevents-loft-roof-condensation-attic
store_origin: LK
region: Sri Lanka
---

# 3000mm² airflow per vent Fits 400-600mm joist spacing Easy slot-in installation 10 x Felt Lap Vents Prevents Loft roof Condensation. Attic Space Ventilation

**Brand:** manthorpe
**Price:** ₨53902
**Availability:** ✅ In Stock

## Summary

> 🏡 Keep your loft fresh and dry—vent smart, live smart!

## Quick Answers

- **What is this?** 10 x Felt Lap Vents Prevents Loft roof Condensation. Attic Space Ventilation by manthorpe
- **How much does it cost?** ₨53902 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/599601152-10-x-felt-lap-vents-prevents-loft-roof-condensation-attic)

## Best For

- manthorpe enthusiasts

## Why This Product

- Trusted manthorpe brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Regulation Ready:** Meets building regulations, ensuring your renovation is both safe and compliant.
- • **Breathe Easy, Live Dry:** Prevents roof condensation and moisture buildup for a healthier loft environment.
- • **Plug & Play Ventilation:** Slots effortlessly between felt laps—no complex tools or roof dismantling required.
- • **Universal Compatibility:** Designed to fit standard 400-600mm joist spacings, perfect for most lofts.
- • **Secure Fit, Lasting Protection:** 3 felt clips hold vents firmly even on degraded or loose felt surfaces.

## Overview

The Manthorpe Felt Lap Vent pack of 10 offers a simple, effective solution to prevent loft roof condensation by enhancing airflow with 3000mm² ventilation per unit. Designed for easy installation between felt laps from inside the loft, it fits standard joist spacings (400-600mm) and secures firmly with 3 felt clips, even on degraded felt. Ideal for retrofit projects, especially after adding loft insulation, it meets building regulations to ensure safe, compliant ventilation.

## Description

Felt Lap Vent Prevents Roof Condensation Pack of 10 Prevents roof condensation and moisture drops. Easy to fit just slots between the felt laps. Can be installed from inside of loft. The 3 felt clips secure the product in place even if the felt is degraded of loose. Can be fitted between 400mm joists and 600mm joist openings. Provides 3000mmÂ² air flow per unit. Felt lap dimensions 275mm x 190mm Meets building regulations. The Manthorpe Felt Lap Vent is a refurbishment product designed to increase the amount of ventilation into existing roof spaces. Usually fitted retrospectively to properties with additional loft insulation recently installed, however the Felt Lap Vent will help to combat the problem of condensation build up in any roof space with a lapped felt/membrane construction.

## Features

- Felt Lap Vent Prevents Roof Condensation
- Pack of 10
- Easy to fit just slots between the felt laps.
- Prevents roof condensation and moisture drops.
- Can be installed from inside of loft

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Manthorpe |
| Part Number | hsmart-532- var_SML |
| Item Weight | 1.58 pounds |
| Product Dimensions | 11.02 x 9.06 x 3.54 inches |
| Item model number | _SML |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![10 x Felt Lap Vents Prevents Loft roof Condensation. Attic Space Ventilation - Image 1](https://m.media-amazon.com/images/I/41o0sfRUhuL.jpg)
![10 x Felt Lap Vents Prevents Loft roof Condensation. Attic Space Ventilation - Image 2](https://m.media-amazon.com/images/I/61dyD9NYdQL.jpg)
![10 x Felt Lap Vents Prevents Loft roof Condensation. Attic Space Ventilation - Image 3](https://m.media-amazon.com/images/I/61UMd8NfqjL.jpg)
![10 x Felt Lap Vents Prevents Loft roof Condensation. Attic Space Ventilation - Image 4](https://m.media-amazon.com/images/I/81MrqgA33DL.jpg)

## Frequently Bought Together

- 10 x Felt Lap Vents Prevents Loft roof Condensation. Attic Space Ventilation
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**Shop now:** [https://www.desertcart.lk/products/599601152-10-x-felt-lap-vents-prevents-loft-roof-condensation-attic](https://www.desertcart.lk/products/599601152-10-x-felt-lap-vents-prevents-loft-roof-condensation-attic)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-11*