Durability: Aluminum material is long-lasting and resistant to external factors as it is light and durable.
Waterproofing: Aluminum sills can be used to provide waterproofing to prevent water leaks.
Non-Slip Surface: They can have a smooth and non-slip surface, thus providing a safe passage.
Aesthetic Appearance: Aluminum sills generally have a modern and stylish look and can offer a variety of color and design options.
Affordable Price: They can be more affordable than other materials.