EAN: 608631427618 Model: Roof Loft Ventilation Unit Quantity: 10 Item Weight: Roof Loft Ventilation. Why Choose Our Loft Vent?. It is essential to consult with a professional to assess the suitability for your roofing structure.
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If further ventilation is required, install one lap vent into every rafter space at low level or into lap joints at higher level. To provide typical ventilation, allow for 1 lap vent every alternate rafter space at low level, on opposite sides of the roof.
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Pack of 10 unused timloc lap vents. Adds ventilation to a felt roof.
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12 x Felt Lap Vents, Loft Vents for Condensation, Roof Ventilation Lap Vents, Felt Lap Vents Prevents Loft Roof Condensation, Keep Attic Space Ventilation Airflow. Felt Vents for Loft: Each unit will provide 3000mm² of free airflow into the loft space.
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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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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 vent.
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