Do I Need Ventilation in My Roof?

Posted on by Protech Roofing Team

When many people think about roof treatments, they may immediately jump to insulation. While insulation is extremely important to ensure your roof is as energy efficient as possible, especially during the winter months, we often forget about the importance of ventilation. In this article, the team at Protech Roofing will discuss the importance of ventilation, and the different forms ventilation that might be right for you.

Why ventilation is important

At home, nearly all of our daily activities generate moisture in some way or another: cooking, bathing, showering, washing, drying – even breathing! After a while, all of this excess moisture that we generate eventually congregates in our roofs. And this is where the problem begins.

If our roofs aren’t properly ventilated, this moisture will get trapped in your roof space, ultimately leading to mould, damp, rot and damage to items stored up there. However, most importantly, this damp will eventually cause damage to the roof structure itself, something which can prove very costly to treat.

What makes this situation even trickier?  It’s not always easy to detect when such damage is occurring. However, there are circumstances when it becomes more noticeable. For example, if there is snow on the roof or it is particularly cold outside, the moisture will condense and become more noticeable.

So, what are your ventilation options?

Flat vents

Otherwise known as box vents or turtle vents, flat vents are simple and static ventilation systems. Featuring no moving parts and simply installed over cut holes in the roof, flat vents allow moisture to escape while simultaneously allowing a channel for hot air to enter the roof.

Most effective when installed as close as possible to the roof ridge, these vents are simple to install, but work their best when teamed together.

Power vents

Also known as PAVs, power vents are essentially a step up from flat vents. Although featuring a similar design, power vents boast a large fan which drives moisture out of your roof. Even better, power vents can be automated with built-in thermostats which activate when your roof reaches a certain temperature. Power vents come in a number of variants too, solar powered versions, for example.

Ridge and off-ridge vents

Although different, both of these vents work in a similar manner. Both are static ventilation systems, but with different shapes. Ridge vents are a common form of ventilation and hang over the edge of the roof, allowing any excess moisture to escape. They slot easily into your roof tiles too.

Off-ridge vents, on the other hand, work in a similar manner to flat vents and are placed over cut sections of the roof.

Here at Protech Roofing Ltd, we provide each and every customer with professional and honest advice. Based in Leeds, our team of experts are there to help those in neighbouring areas that require maintenance, repairs or a whole new roof. For general enquiries, surveys, consultations and installations, just give us a call today!

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