---
product_id: 649271880
title: "12 x Felt Lap Vents, Loft Vents for Condensation, Roof Ventilation Lap Vents, Felt Lap Vents Prevents Loft Roof Condensation, Keep Attic Space Ventilation Airflow"
brand: "4baohui"
price: "¥9956"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/649271880-12-x-felt-lap-vents-loft-vents-for-condensation-roof
store_origin: JP
region: Japan
---

# 203mm x 280mm x 19mm compact size 3000mm² free airflow per vent Fits joist centres 400-600mm 12 x Felt Lap Vents, Loft Vents for Condensation, Roof Ventilation Lap Vents, Felt Lap Vents Prevents Loft Roof Condensation, Keep Attic Space Ventilation Airflow

**Brand:** 4baohui
**Price:** ¥9956
**Availability:** ✅ In Stock

## Summary

> 🌬️ Elevate Your Loft’s Breathability — Don’t Let Dampness Crash Your Space!

## Quick Answers

- **What is this?** 12 x Felt Lap Vents, Loft Vents for Condensation, Roof Ventilation Lap Vents, Felt Lap Vents Prevents Loft Roof Condensation, Keep Attic Space Ventilation Airflow by 4baohui
- **How much does it cost?** ¥9956 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/649271880-12-x-felt-lap-vents-loft-vents-for-condensation-roof)

## Best For

- 4baohui enthusiasts

## Why This Product

- Trusted 4baohui brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Maximized Loft Airflow:** Each vent delivers 3000mm² of breathable space, banishing dampness and condensation.
- • **Effortless Installation:** Simply push into felt joins—no tools or hassle required for instant airflow upgrade.
- • **Universal Fit for Most Roofs:** Flexible installation between felt joins at joist centres from 400mm to 600mm.
- • **Dry, Healthy Attic Environment:** Prevents winter damp and steam buildup, ensuring your loft stays fresh and mold-free.
- • **Pressure-Resistant Arched Design:** Engineered arch shape withstands roof pressure while optimizing ventilation.

## Overview

This pack of 12 felt lap vents by 4BAO measures 203mm by 280mm and features an arched design with multiple holes to provide 3000mm² of free airflow per vent. Designed to fit joist centres between 400mm and 600mm, these vents are easy to install by pushing between felt joins, effectively preventing condensation and improving attic ventilation for a dry, healthy loft environment.

## Description

12 x Felt Lap Vents, Loft Vents for Condensation, Roof Ventilation Lap Vents, Felt Lap Vents Prevents Loft Roof Condensation, Keep Attic Space Ventilation Airflow

## Features

- Product Content: Pack of 12 Lap vents, length 203mm, width 280mm, height 19mm. The arched design can withstand greater pressure and has multiple holes to greatly increase ventilation
- Felt Vents for Loft: Each unit will provide 3000mm² of free airflow into the loft space
- Lap Vents for Loft: Can be fitted at joist centres ranging from 400mm to 600mm, suitable for most roofs
- Easy to Install: You just push them between the felt joins and they let in more air from the underside of your roof tiles
- Dry Loft: Attic vents can increases airflow and helped with yours condensation problem, making your attic no longer damp in winter, and it can quickly discharge the steam after bathing and improve the ventilation environment, giving you a dry loft

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | 4BAO |
| Product Dimensions | 30 x 20 x 2 cm; 740 g |
| Item model number | Vents 01 |
| Colour | 12 |
| Batteries Required? | No |
| Item Weight | 740 g |

## Images

![12 x Felt Lap Vents, Loft Vents for Condensation, Roof Ventilation Lap Vents, Felt Lap Vents Prevents Loft Roof Condensation, Keep Attic Space Ventilation Airflow - Image 1](https://m.media-amazon.com/images/I/71f1Az8Ki-L.jpg)

## Available Options

This product comes in different **Colour Name** options.

## Frequently Bought Together

- 12 x Felt Lap Vents, Loft Vents for Condensation, Roof Ventilation Lap Vents, Felt Lap Vents Prevents Loft Roof Condensation, Keep Attic Space Ventilation Airflow
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**Shop now:** [https://www.desertcart.jp/products/649271880-12-x-felt-lap-vents-loft-vents-for-condensation-roof](https://www.desertcart.jp/products/649271880-12-x-felt-lap-vents-loft-vents-for-condensation-roof)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-22*