Felt Lap Roof Vents are a quick and easy solution for improving loft ventilation and preventing condensation. Designed for universal use, they fit seamlessly between joists spaced from 350mm to 600mm.
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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. The arched design can withstand greater pressure and has multiple holes to greatly increase ventilation.
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3,000mm² airflow per G630.
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If further ventilation is required, install one lap vent into every rafter space at low level and/or into lap joints at higher levels. The lap vents should be fitted to both sides of the roof space in order to provide cross-flow ventilation.
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3,000mm² airflow per G630.
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3,000mm² airflow per G630.
eBay
3,000mm² airflow per G630.
eBay
3,000mm² airflow per G630.
eBay