What are Fascias and Soffits?

While a lot of people are familiar with the terms fascia and soffit, many are unsure which is which, and exactly how they work to protect your home. The area where the edge of your roof meets the outer walls of your house is often known as the roofline, protection in this area is comprised of four main components, all of which work together. These include:

Fascia Diagram


The long straight board that runs along the lower edge of the roof. It is vital that the fascia is constructed from a strong material as it not only supports the edge of the roof tiles but also carries the guttering, which in a heavy rainstorm could contain several gallons of water, adding up to a lot of weight for the fascia to support. 

As well as providing protection from the elements and keeping birds and vermin out of your roof space, fascias are highly visible on your property so appearance is also an important factor. uPVC fascias are available in a wide range of colours and finishes, allowing you to give your home an instant update.

Soffit diagram


Tucked away horizontally under the fascia board, the soffit covers the end of your rafters and encloses the roof space. Ventilated soffits are available to provide a flow of air into the roof area, preventing condensation.

The soffit’s main job is to prevent water from penetrating the rafters, as uPVC is a completely waterproof material you can be sure that your rafters will be well protected. Modern uPVC soffits with ventilation also have the benefit of relieving condensation within the roof space which could lead to rotting joists.

Bargeboard and Boxend Diagram


The bargeboard is the board that is used on the gable end of the house. It conceals the end of horizontal timbers and adds protection and strength. A range of attractive shapes and finishes are available.

Box End

The box end is the piece that connects the fascia, soffit and bargeboard together at the gable end of the house for a clean and tidy finish.