10 x Felt Lap Vents Prevents Loft roof Condensation. Attic Space Ventilation

Product Information

I have seen cases where the roof felt is so tight that the vents won’t fit – I suggest pushing a finger between the felt overlap to see if there’s enough room for a vent. Don’t forget: It’s normal to see a little bit of condensation after you’ve created moisture in the home (cooking, bathing, showering), especially when it’s very cold in the loft.

The information usually does not directly identify you, and is used to provide a more personalised web experience. Ridge tile vents are placed on the ridge, at the very peak of the roof to allow warm air to escape rather than condense in the roof space. The Manthorpe G630 Felt Lap Ventilator is a refurbishment product that is designed to increase the amount of ventilation into existing roof spaces with a lapped felt/ membrane construction. com Ltd acts as a broker and offers finance from a restricted range of finance providers, PayPal Credit and PayPal Pay in 3 are trading names of PayPal UK Ltd, Whittaker House, Whittaker Avenue, Richmond-Upon-Thames, Surrey, United Kingdom, TW9 1EH.When combined with existing roof space ventilation, fitting evenly spaced lap vents on both sides of the loft will fix most loft condensation problems. Daniel has installed external roof vents to dozens of homes and also fitted loft lap vents to his own property to alleviate condensation. Condensation will tend to be on the high parts of the roof, where as a leak might not be, or the evidence of a leak might be lower down. Most probably you would have checked that the extractor pipe was attached to the underside of one of these in step 1, although they can be vented in other locations also. When used in combination with proper ventilation materials and permeable roof coverings, roof lap vents are an effective tool for reducing condensation, providing adequate protection to your home.

I’ve found the most effective way to cure loft condensation is to install ventilation so a breeze can enter the loft and pull the moisture out of the loft into the atmosphere (this method works for most lofts in the UK but not “warm roofs”). We ask an expert with qualifications or extensive experience in the relevant area to fact-check and review the content, which we update accordingly, if applicable. of loft condensation cases can be resolved to an acceptable level by improving the ventilation rather than retrofitting a vapour barrier.Also, if you add extra insulation to your loft, the warmth will stay trapped in the home below, meaning the felt and timbers in the loft will be colder. Job was done in about 30min, very simple, only problem was to reach the right area, so nothing to do with the product itself. A correctly installed vapour barrier can stop moisture from getting into the loft in the first place, but I know from experience that they are difficult and costly to retrofit into an existing home and are best suited to new builds, extensions and major renovations.

Loft condensation was a new addition to my 'house issues that need dealing with' list, although, in hindsight, I just wasn't aware it was happening, as opposed to it only starting recently. A “warm roof” is when the insulation is placed directly under the roof tiles and the loft is usually the same temperature as the rest of the house. Double-check your loft insulation isn’t blocking any existing vents at the corners of the loft (where the roof meets the loft floor, there should be a gap).

Tile/Slate Vents - If you’ve had tile vents fitted get up into the loft and make sure the sarking felt/membrane (the waterproof felt under the roof tiles has been cut below the tile vents to allow air in. Some say that the vents have saved them an absolute fortune and provided an entire additional floor on their home. If it gets really bad condensation can eventually saturate your insulation (especially if the condensation is constantly dripping in one location).