Felt Lap Ventilators

Felt lap vents are designed to increase the amount of ventilation in existing roof spaces. They tend to be fitted retrospectively to properties which have additional loft insulation, with the roof lap vent helping to combat the issue of condensation accumulation.

Roof lap vents are a great addition for poorly vented areas, and we offer a choice of either the Manthorpe Felt Lap Vent or the Hambleside Danelaw Underlay Lap Ventilator in our range. Both are great for combating damp problems, and you can buy the Manthorpe vent individually or in packs of 50. 

Felt lap vents are easy to fit and allow a good amount of airflow into the roof space. It’s important to note that this type of vent will need to be used in conjunction with another type of ventilation product in order to meet roof ventilation requirements.

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