Flat Felt Roofing in London

What is Flat Felt Roofing?

Flat felt roofing, especially built-up RBM (Reinforced Bitumen Membrane), is the most common material for residential flat roofs in London. It's also popular for major roofing projects. Recent years have seen significant product development. This roofing method involves rolling out three layers of sheet materials over the roof, which are then bonded together with hot bitumen. These sheets are typically made from polyester of varying strengths and coated in bitumen, creating a single waterproof layer once fused together. When applied over a heated building, the membrane is laid onto the insulation, which is bonded to a vapour control layer attached to the roof deck. This setup is known as a warm roof and is highly effective.

Reinforced Bitumen Membranes M(RB)

Torching Method: In this method, specially designed RBM is heated with a gas torch, eliminating the need for separate bonding bitumen. There are many misconceptions about felt roofs, but if installed correctly by skilled tradesmen, these concerns are unfounded. At Horncastle & Sons, our craftsmen are fully trained and knowledgeable in all types of RBM. We have approved installers for Index Construction Systems RBM materials.

Why Choose Us?

For expert flat felt roofing in London, our team at Horncastle & Sons ensures quality and durability. View our gallery for photos of recent flat roofs. Our team of flat roofers in North London is skilled in installing and maintaining flat felt roofs. We ensure that every project is completed to the highest standard, providing reliable and long-lasting roofing solutions for your home.



If you need roof repairs in North London, our experienced team can handle all types of issues, ensuring your roof is safe and secure. We offer prompt and efficient repair services to keep your home protected. We specialise in all aspects of domestic roofing, from putting on new roofs to keeping your existing ones in tip-top shape. We can install, maintain and repair your roof, so you can be sure your home stays dry and cosy all year round. Visit our website for more information and to view our recent projects.