Roofline Terminology Explained

When it comes to roofing, professionals often forget that what seems like simple terms to those in the trade can become a nightmare of technical jargon for property owners. However, it’s important to understand some of the terms that may crop up when you’re having your roof inspected and to help you spot when something isn’t looking as it should.

Here’s a simple guide to the roofline terminology you should get to know.

Roofing essentials - roofline terminology explained | Collier Roofing


When we refer to the term ‘roofline’, it usually refers to those features which run along its bottom edge where the roof meets the walls of your property. Historically, this consisted of wooden boards, but these had their downsides. Wood is notorious for being difficult to maintain, needing regular upkeep to stop it encountering issues such as warping and rot. UPVC roofline alternatives have become the product of choice when it comes to updating a roofline. This is an incredibly functional material which helps to protect your roof against the elements and can be custom made in a look of your choice.


Fascias are the part of the roofline which is directly connected to the lower edge of your roof. This long and straight board often carries guttering while supporting the bottom row of your slates or tiles. Fascias need to remain in good condition as they support the weight of several aspects of the roof.


Located beneath the fascias, soffits support the entire roofline while enhancing airflow and ventilation into the roofing area. This is important for preventing condensation building up in your roof and loft space which can cause other issues such as damp, mould and decay in timber. Depending on the design of your roofline, the fascias can also be designed for this role. Soffits ensure the roof space is completely sealed to stop birds and animals finding their way into your home.


Bargeboards are located on the gable end of the property along the diagonal edge of the roof. They’re designed to protect your roof lining and timbers, ensuring there aren’t any gaps around this part of the roofline where water could enter. Different shapes and designs can be chosen depending on the look you’d like to create for your roofline.


If you need to replace your fascias, you may also need to consider replacement guttering too. This essential structure runs both horizontally along the fascia board and vertically down the side of your property, draining rain away from your property. It’s important to have them regularly maintained and cleared of any build-up of debris such as leaves, moss and animal droppings to prevent leaks occurring.

Think you need some roofing help?

Here at Collier Roofing, we work with home and commercial property owners across Surrey, London and surrounding areas (including Warlingham and Whyteleafe). Offering all in one, tailored services, we provide advice and solutions for all aspects of your roofing. So whether you’ve noticed an issue with your roofline or want a professional inspection, we’re here to help. Just ask our knowledgeable and friendly team for a free consultation and quotation by getting in touch.