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Why install roof vents?

Install roof vents to moderate the temperature in an attic or roof space. By preventing an attic/roof space from getting too hot or too cold you reduce the build up of moisture levels.  Allowing the air in a property to circulate keeps the air fresh and reduces risk of condensation.

When you install roof vents to combat the risk of condensation, the regulated roof temperature also helps regulate the temperature throughout the property. This can mean lower energy consumption and therefore lower energy bills.

How to tell when you need to install roof vents in an existing attic space

In the colder months of the year (especially between November and February) spotting visible signs of condensation on the inside of your roof is an indicator that the roof is not properly ventilated. You may see droplets of water (sometimes known as ‘roof sweating’) or damp patches. You might also notice a musty smell or black mould growing on old clothes or boxes stored in the attic.

Less obvious in the Summer or warmer months of the year, you might still notice a strong, ‘lofty’ smell to your roof space.

How is moisture bad for loft and attic spaces?

In a poorly ventilated or unventilated roof, warm air can become trapped. Warm air is easily generated during a normal day of living or working in a building: simple activities including cooking, showering and drying clothes create extra moisture in the air. When this air has nowhere to go, it causes condensation. This has become even more commonplace since people have been insulating their homes better (using insulation, windows etc) without considering the correct ventilation for the age and type of the property.

Condensation can reduce the life expectancy of your roof materials.  In the case of loft insulation, condensation can even cause damage (loft roll, for example, can become ineffective if it gets too damp).

What type of roof vents are available?

Different types of roof vents are available to help regulate the temperature of your roof depending on the property itself and the type of ventilation required:

Tile vents
Drip edge vents
Ridge vents
Static vents
Gable vents
Turbine vents
Powered vents
Continuous / individual soffits

If you are experiencing ventilation issues in your property, we recommend speaking with a professional roofing contractor. A competent roofer will advise you how to optimise the ventilation in your roof, without adding too much (if you install too many roof vents or the wrong type of ventilation, this can make your roof more vulnerable to leaking). Their advice will be specific to your property.

Roofing Superstore’s full range of roof vents can be found here.

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