If there is one essential element when we undertake to insulate a home, it is the roof!

As we know, in fact, as hot air escapes from above, your roof will play a very important role in keeping it inside your home. We will see that there are two types of insulation: exterior insulation – this is the subject of this article – and interior insulation (which will be covered in the following).

To direct your choice towards one or other of these options, you will need to take into account various factors such as the airtightness of your roof, its settlement over time, its vapor permeability, etc.

It goes without saying that good insulation of your roof has a positive environmental impact.

We are therefore interested here in the exterior insulation method, also called “sarking”. It consists of placing thermal insulation panels above the frame on which your tiles or slates will be placed.

This technique offers many advantages. You can, for example, in the event of renovation, insulate the roof without having to modify the interior fittings. Your frame will also be better protected against the sudden temperature variations represented by the transition from day to night, or from summer to winter.

The techniques for setting up the logistical system linked to external insulation will vary depending on the nature, condition and age of the building.

For a personalized overview of these practical points, do not hesitate to contact us! The Renovapro specialists will be happy to guide you towards the technique best suited to your needs.