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The product has been designed as a remedial solution to help overcome the build-up of condensation in the roof space, however, like all products that open the felt lap to provide ventilation it does not meet the code of practice BS 5534:2014+A2:2018 6.2.1.1. Easy to fit and install with a tapered lead-in that aids in smoothly slotting between the felt laps, these felt lap vents from Manthorpe are refurbishment products that increase ventilation in your existing roof spaces. Each EasyVent Loft Vent comes with a spring attachment that you position inside the vent before installation to create an airflow outlet. This allows warm, moisture-rich air to escape through the roof and instantly helps to stop condensation in lofts. It’s such a simple solution, but it works. Other Products to Help Ventilate your Attic. All damaged or missing items should be reported to the driver and signed for as damaged or missing, wherever possible.
If the delivery is missed for any reason, you will be billed again for the re-delivery. See below: failed deliveries.Felt lap vents are another great way to help ventilate your loft or attic. Rather than creating an opening in the roof itself, felt lap vents just create an opening in the roofing felt. Roofing felt is a membrane between the tiles and the actual loft. While the tiles on the top of a house allow some air through, felt lap vents allow that air to make it through the roofing felt. This is particularly important if your house has roofing felt made up of a non-breathable membrane. At ERoofing, we carry the versatile and effective Manthorpe Felt Lap Vent, one of our best-selling products. Products are also available for slate roofs in the form of slate vents. Compact, easy to install, and discreet, these vents are ideal for period properties and stone houses, where they promote airflow and keep roof spaces free from condensation. They slot in place just like regular roof slates and blend in seamlessly with the rest of the roof. Manthorpe Felt Lap Vents are refurbishment products designed to increase the amount of ventilation into existing roof spaces with a lapped felt/membrane Our roof ventilation range is entirely British manufactured, as are the majority of our products; proudly supporting British manufacturing and minimising risk in the supply chain and in your project schedules. Roof and eaves ventilation – complete solutions The Manthorpe Felt Lap Vent is a refurbishment product designed to increase the amount of ventilation into existing roof spaces. Usually fitted retrospectively to properties with additional loft insulation recently installed, the Felt Lap Vent will help to combat the problem of condensation build-up in any roof space with a lapped felt/membrane construction.
Our sales office will need to be made aware of any delivery restrictions, such as narrow lanes, overhanging trees etc. that may cause restrictions. It’s easy to ignore condensation in the loft or attic. Most people only visit their attic once or twice a year. The weeks running up to and following Christmas is one example as many people visit their lofts to bring Christmas decorations down from storage. With three felt clips that secure the vents in place, regardless of whether felt edges are jagged or deteriorated, these vents are often fitted retrospectively to buildings where extra loft insulation has recently been installed. Though, they can also reduce condensation build-up in any roof space that features a lapped felt/membrane structure. Features & Benefits: Manthorpe Felt Lap Vent (Box of 50) For roof spaces that require more than the 15000mm/m² the spacings half for each additional 5000mm/m²You should 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 & 6.2.1.1. Roof FeltVent Key Information
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