Best Metal Roof Vents of 2025

Timloc Felt Lap Vent is an easy-to-install solution designed to increase ventilation in existing roof spaces. The pack of 10 vents can be fitted from inside the loft and simply slots between the felt laps. Its primary feature is to prevent roof condensation, which is a common problem in loft roofs. The Felt Lap Vent is also useful for increasing the amount of ventilation into existing roof spaces, which can help to reduce heat build-up and provide better airflow. This product is an ideal solution for those who want to maintain a well-ventilated loft space while preventing roof condensation.

The Manthorpe G630 Felt Lap Ventilator is a refurbishment product designed to increase ventilation into existing roof spaces with a lapped felt/ membrane construction. It is intended to be fitted retrospectively to properties that have had additional loft insulation recently installed. The vent will help to combat the problem of condensation build up caused by the extra insulation by adding additional ventilation into the roof space. Keep in mind that this product will not meet the requirement for roof space ventilation solely on its own. It provides airflow through the felt laps into the batten void. The product has been designed as a remedial solution to help overcome the build-up of condensation in the roof space. The specifier or user should be aware that the opening of felt laps on the roof may adversely affect the driving rain resistance of the slates, tiles, or shingles, as well as increase the wind uplift forces acting on them. With the Pack 20 Roofing Felt Vent, you can easily combat the condensation build-up issue and improve the ventilation in your existing roof spaces, allowing you to enjoy an improved living environment.