Ridge flashings, also known as ridge caps or ridge capping, are important components used to seal and protect the ridge of a roof. The ridge is the highest point where two roof slopes meet, and ridge flashings are installed over this junction to prevent water infiltration and provide a finished appearance.

Here are some key points about ridge flashings:

1. Purpose: The primary purpose of ridge flashings is to create a watertight seal along the ridge of the roof. They protect this vulnerable area from water penetration, preventing leaks, and potential damage to the underlying roof structure.

2. Material: Ridge flashings are typically made of metal, such as aluminium, galvanised steel, stainless steel, or copper. These materials offer durability, weather resistance, and longevity. The choice of material depends on factors such as budget, compatibility with the roofing system, and aesthetic preferences.

3. Design and Installation: Ridge flashings are available in various designs and profiles to match the style and requirements of the roof. Common types include standard ridge caps, which have a simple peaked design, and ventilated ridge caps, which incorporate openings for air circulation. The flashings are installed over the ridge of the roof, secured in place with appropriate fasteners or adhesive, and often sealed with roofing cement or caulking to ensure a tight seal.

4. Protection and Ventilation: In addition to waterproofing, ridge flashings can also provide ventilation to the attic or roof space. Ventilated ridge caps may include openings or vents that allow air to flow through the ridge, promoting better airflow and reducing moisture buildup.

5. Aesthetics: Ridge flashings contribute to the overall appearance of the roof. They provide a clean, finished look by covering the exposed edges of the roofing material along the ridge. Ridge flashings can be colour-matched to the roof or chosen to create a contrasting accent.

6. Maintenance: Regular inspection and maintenance of ridge flashings are important to ensure their effectiveness. Over time, the flashings may become damaged, loose, or develop gaps. It’s essential to check for any signs of deterioration or separation and promptly repair or replace the ridge flashings as needed.

Ridge flashings are vital for protecting the ridge of a roof from water infiltration and ensuring the long-term integrity of the roofing system. Proper installation and maintenance of ridge flashings contribute to a watertight and aesthetically pleasing roof.