Roof Ventilation FAQs
Every property needs proper ventilation to ensure its roofing remains in good condition. At Collier Roofing, we specialise in all types of roof ventilation for domestic and commercial properties. Our clients often want to know more about how roof vents work and whether their roofing has adequate ventilation, so here’s our handy guide to this feature.
Why is roof ventilation important?
Roof vents are essential components in protecting the integrity of your property’s structure by regulating both temperature and moisture levels in your attic. Proper roof ventilation allows for good circulation of fresh air into the loft space to prevent condensation issues and allow hot air to escape. Without adequate ventilation, you could end up facing costly repairs or higher bills.
How do roof vents work?
Roof vents work via natural airflow. As warm air rises in a property, it should escape through exhaust events along ridges and gables while cooler fresh air comes in through intake vents in areas like roof soffits. The continuous airflow should prevent heat and moisture build-ups.
How do you know if there’s a problem with your roof ventilation?
Roof ventilation problems we commonly see are linked to condensation damage like rotten rafters, mould, mildew, musty odours, insulation damage and damp spots. There could also be issues with overheating and temperature control, leading to higher costs of running a home with air conditioning. In cold temperatures, you may also get problems with ice dams along roof edges. This happens if trapped warm air melts the snow in this spot, which then refreezes at the eaves. Always request a roof ventilation inspection if you’re concerned.
What type of roof vents are there?
There are lots of different roof vents on the market, which can be tailored to your property design to optimise airflow. This includes roof tile vents, soffit vents, fascia vents, slate roof vents, lap vents on felt roofs, dry ridge vents, gable vents and through-wall extraction vents, to name a few. Some of these are installed along the peak to allow hot air to escape, and some will be fitted under the eaves to let in cool, fresh air.
How many roof vents do you need?
The number of roof vents needed will depend on the size of your roofing and attic space. If you consult with a roofing professional, they can take accurate measurements and let you know if you have adequate roof ventilation for your plans. This will be calculated in line with building regulations, looking at the total airflow required and the ventilation area of each vent.
Where should roof vents be installed?
Roof vents should be installed in optimal positions for effective airflow. This includes the exhaust vents are the highest points of the roof where hot air will escape above, and intake vents at soffits and eaves to draw in cool air below. This is the perfect setup for steady air circulation in your attic.
Contact Collier Roofing for a roof ventilation quote
Need a roof inspection or help with your roof ventilation? Collier Roofing operates across London and Surrey locations such as Coulsdon and Caterham.
For a free roofing quote, contact our roofing team.