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Roof insulation installation, maintenance and repairs

Roof Insulation Services

When it comes to insulating a building, AC Roofing is the name you can trust. Our experienced team of roofers fully understands how to properly insulate your roof and ensure that not only does it not let in cold air but also saves you money.

There are two types of roof in operation these days and the differences are quite important when it comes to insulation.

The cold ventilated void roof configuration is the traditional form of pitched roof build-up and in this case, the insulation layer is placed horizontally, directly above the ceiling of the upper storey of the house or business. This is usually between the joists in the loft space. The breather membrane is then placed at rafter level but it is important to note that in a traditional cold roof system such as this, the void space below the membrane has to be ventilated.

The other type of roof in operation is the warm roof, which is increasingly popular today. As the aim is to now maximise our living space and the available accommodation in a property, this will become the predominant form of pitched roof construction in the UK.


In this instance, a breather membrane must be used to overcome a possible condensation risk and this is placed directly under the external waterproofing. A vapour control layer is usually then placed beneath the insulation to limit the passage of moisture.

With the breather membrane placed on the top of the insulation, counter battens are then used to install the tile or slate finishes. Unlike in the cold ventilated roof configuration, ventilation in the void space is not needed. This then allows the void space to be used for other things.

If you would like any more information about our insulation services, please do not hesitate to contact one of our helpful and friendly team.