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

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You can easily get three quotes from roofers near you using our request a quote feature. Simply enter information about your job and we’ll send it to three roofers near you. Roof vent replacement cost Condensation is one of the most common issues faced by British homeowners. It’s estimated that at least 1 in 5 UK homes suffers from excess condensation, often in the loft space. There are many reasons for this which we’ll discuss further below, but one of the most common causes includes the measures we take to make our homes more energy efficient. Thanks to innovations such as double or triple glazing, cavity wall insulation and so on, your home effectively becomes “sealed up” and cannot breathe as effectively. Stop Condensation Commonly found in bathrooms after a long hot shower, or kitchens after boiling the kettle, condensation is a daily occurrence in most homes. In some instances, it doesn’t cause any issues at all. But if it is left to build up in your attic or loft, it could lead to both serious health problems and structural damage. A warm roof will have the insulation in between the rafters directly under the roof tiles which means that the loft space will be heated also. They tend to only be used in smaller lofts where the cost of heating a large void space will not be too expensive. When I worked as a roofing contractor, I received dozens of phone calls every winter from customers with loft condensation issues.

Another common cause of condensation is poor ventilation caused by overcrowding your loft space with possessions. Many older properties may only have a few tile vents or no ventilation at all, which means boxes could potentially be obstructing these vents, greatly impacting airflow. More modern roof designs use continuous eave and ridge ventilation, however using the loft as a storage area still isn’t recommended. According to the National House Building Council, “The roof space isn’t intended to be a storage area, so if you do put items up there you could restrict the air flow. The stored items may also become damaged by the condensation.” Excessive water vapour from your house getting up into the loft. Possibly via gaps around light fittings, services or a poorly fitted loft hatch. Some companies may offer to fix your damaged or leaking roof by spraying foam insulation directly onto the underside of the roof without fixing the problem first. We don’t recommend that you do this. Without good ventilation, there will be more substances in the air that can cause harm to you and your family. This includes pollutants from cooking, cleaning products, hygiene products and fabric furnishings. Section 3: What do the Building Regulations require? 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.If you’ve got condensation issues in your loft it’s now relatively easy to resolve by adding additional loft ventilation. Please don’t ignore any issues you may have as they’ll only get worse (and more expensive to fix) the longer you leave them. No, in most lofts, the insulation is placed on the loft floor. Your heating bills won’t be affected if the vents are installed above this. I Never Had Condensation Before, Why Has It Formed Now? This is usually due to missing insulation under the roof tiles which causes cold spots where condensation forms. This should be investigated by a professional roofer if you can’t see any obvious failure of the insulation. Will Loft Vents Cause Leaks?

If moisture gets into the home, it could cause damage. But of course, preventing any moisture from entering our property altogether is impossible. We cook, we take showers, we breathe - all of these things occur daily when we are going about our normal lives, and these tiny droplets of water could end up becoming much larger problems if we don’t have adequate ventilation in our homes. When air is warm and moist it travels upwards through the floors of the house until it enters the roof space. Condensation here can be at its most damaging, affecting roof beams and compromising the structural integrity of the building. Untreated moisture can turn to dampness, mould, or even ice damming. The timber that holds the roof together could become rotten and weak. How to Create Good Loft Ventilation Enabling air circulation in your loft is just as vital as boarding your loft and insulating it properly. So, if condensation’s present in your loft space, installing roof vents will combat this as well as keeping the air circulating correctly for a more regulated temperature. This guide is intended to help you better understand the ventilation of your home. This guide does not replace the manufacturer’s instructions for ventilation systems, which should always be followed. Section 2: What is ventilation for? It can be hard to tell if it’s condensation or the roof is leaking, particularly as it can be astounding how much moisture can condense in the right (or should we say, wrong) conditions. During my 17 years working as a roofing contractor, I was often asked questions about loft condensation; here are the answers to the most common questions:

Ventilation is the exchange of fresh air from the outside and stale air and moisture from the inside of a property. Poor ventilation can result in harmful pollutants and moisture being trapped in the property which, in turn, can damage the health of people and the house itself. Reducing condensation and mould growth