3,000mm² airflow per G630.
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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.
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The vents feature multiple holes across their surface, significantly increasing the amount of air that can pass through. This design maximizes ventilation efficiency, allowing fresh air to circulate freely within the loft.
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3,000mm² airflow per G630.
eBay
3,000mm² airflow per G630.
eBay