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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) Roof ventilation has always been critical in letting a house or building ’breathe’ and ensure that roof spaces don’t gather moisture and condensation with unpleasant and possibly costly consequences. However, in modern houses with more efficient central heating systems and highly effective insulation methods, temperature differences created between living and roof spaces can present significant roof and eaves ventilation challenges. Drawn to colder roof spaces by convection, condensed water vapour can lead to rotting timbers, rusted metal fixtures and felt damage from mould growth.
The provided clips need to be hooked behind the battens and laid along the tiles. After this, a box is used to roll out the abutment vent along so it covers the 10mm gap and touches the wall, clinging to the tiles like a second skin. Then lead flashing is applied over it to waterproof it but not over quite the entire vent. This ensures that the gap to let air is not covered by the flashing. Finally, the excess vent is trimmed away and the clips bent up over the flashing to finish it all off. Felt Lap Vents If fascia vents enter at the roof’s lowest point, then abutments can enter at one of their highest – they can be placed where a pitched roof meets a flat wall. Abutment vents are rolled-out material that allows some air to enter and exit, and are installed and then covered in lead flashing. At ERoofing, we sell the Manthorpe Flash Vent.
All damaged or missing items should be reported to the driver and signed for as damaged or missing, wherever possible. For roof spaces that require more than the 15000mm/m² the spacings half for each additional 5000mm/m² You 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
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. The specifier or user should be aware that the opening of felt laps on the roof may adversely affect the driving rain resistance of the slates, tiles or shingles, as well as increase the wind uplift forces acting on them. The Felt Lap Vent can be fitted to any loft with joists ranging from 400mm to 600mm, and they are fully recyclable after use. EasyVent for Lofts.
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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. Felt lap vents are designed to increase the amount of ventilation in existing roof spaces. They tend to be fitted retrospectively to properties which have additional loft insulation, with the roof lap vent helping to combat the issue of condensation accumulation. Roof ventilation from Manthorpe can help save both pennies and the environment. In an increasingly energy-conscious world, clients are much more aware of how to save money as well as the planet, so specifications can become even more demanding, putting extra pressure on budgets. Fortunately, Manthorpe’s cost-effective solutions cater for all types of roof ventilation requirements, including new build and refurbishment.
The Manthorpe Felt Lap Vent is a refurbishment product designed to increase the amount of ventilation into existing roof spaces. Simple to install even for a DIY Enthusiast, the vent simply slides between the two layers of underlay felt beneath your existing roof tiles or slates. They can be installed from inside the property so no need to remove any of the existing tiles, timber battens or felt. Important loft lap vent installation notesEasy 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. We can only provide a delivery date and are not able to confirm the time delivery will be attempted. Therefore, we ask that somebody is able to accept and sign for your items throughout the started delivery date.
Manthorpe Felt Lap Vents are refurbishment products designed to increase the amount of ventilation into existing roof spaces with a lapped felt/membrane 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.
Roof ventilation – solutions for a modern-day problem: 20 Results
Our sales office will need to be made aware of any delivery restrictions, such as narrow lanes, overhanging trees etc. that may cause restrictions. But roof vents aren’t as simple as just drilling some holes in your roof and calling it a day. To make sure that the roof is still waterproof, you need to use specially designed roof vents. But there’s no reason to fear, there are several different approaches to roof vents and you’re sure to find one that suits your roof. Tiled Vents
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