Roofing Felt Lap Vent Pk 25 G630
Roofing Felt Lap Vent Pk 25 G630 is backordered and will ship as soon as it is back in stock.
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The Manthorpe G630 Felt Lap Vent is a refurbishment ventilation product that is fitted retrospectively to assist in overcoming the problems with condensation, often found when additional loft insulation has been recently installed. 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 product will not meet the requirement for roof ventilation solely on it's own, it will only provide airflow through the felt laps. Other measures may need to be in place to ensure that the adequate amount of ventilation is provided for the roof space. The specifier should also ensure that the opening of felt laps on the property will not adversely increase the wind uplift load on the tiles/slates or the driving rain resistance of the roof, for more information see BS 5534:2003, 5.8.1 & 22.214.171.124.
Can be fitted at joist centres ranging from 400mm to 600mm 3,000mm2/m airflow.
Easy to fit, the tapered lead in helps to slot the product between the felt laps.
The 3 felt clips help secure the product in place even if the edge of the felt is degraded
- Felt Lap Vents Prevents Roof Condensation
- Pack of 25
- Easy to fit just slots between the felt laps
- Prevents roof condensation and moisture drops
- Can be installed from inside of loft
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