T he felt lap vents roof loft diy value vents stops mouldy ceilings like manthorpe simply slot 8nbetween felt laps in loft to create airflow dries house out making itveasier to heat up reducing bills
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3,000mm² airflow per G630.
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3,000mm² airflow per G630.
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The product can be easily installed by one person in joist openings from 400mm to 600mm wide to provide 3,000mm² of airflow per unit. The Manthorpe G630 Felt Lap Vent is designed to be fitted retrospectively to existing lofts to increase the amount of ventilation into existing roof spaces.
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3,000mm² airflow per G630.
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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.
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Manufactured by Timloc. 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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