Reinforced Bituminous Membrane

Enhance your property with our Reinforced Bituminous Membrane (RBM) roofing solution. This innovative option boasts a stylish mineral finish, offering a variety of colours to suit your aesthetic preferences. Elevate both durability and aesthetics with our fast, cost-effective roofing solution for a truly upgraded and eye-catching property.

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What is Reinforced Bituminous Membrane?

Reinforced bitumen membrane, often referred to as modified bitumen membrane or RBM is a versatile and popular roofing material that offers a range of benefits and uses in construction projects.

It is a composite material composed of bitumen (a sticky, black, and viscous material derived from crude oil) and a reinforcement layer, typically made from materials like polyester, fiberglass, or a combination of both. This combination results in a roofing material that is highly durable, weather-resistant, and easy to install.

Benefits of Reinforced Bituminous Membrane

Discover the numerous advantages of choosing Reinforced Bitumen for your project.

Durability and Robustness:

Reinforced bitumen membranes are renowned for their durability and robustness. The combination of bitumen's water-resistant properties and the reinforcement layer's strength makes these membranes capable of withstanding extreme weather conditions, temperature fluctuations, and physical stresses. Properly installed and maintained bitumen membranes can have a of 30 years or more, depending on the quality of the materials and the level of maintenance.

Their versatility and ease of installation make them a popular choice for roofing and waterproofing applications in a wide range of construction projects, from residential homes to commercial buildings and infrastructure. Proper installation and regular maintenance are key to maximizing their lifespan and ensuring their continued performance.

Use Cases:

Flat and Low-Slope Roofs
Reinforced bitumen membranes are commonly used on flat and low-slope roofs in both residential and commercial buildings. Their waterproofing properties and flexibility make them suitable for these applications.

Green Roofs
These membranes can be used as the waterproofing layer under green roofing, providing an effective barrier while allowing for the growth of vegetation on the roof surface.

Terraces and Balconies
Reinforced bitumen membranes are often employed in areas such as terraces and balconies where there is a need for reliable waterproofing.

See Our Bituminous Membrane Projects


Our Process


Surface Preparation

The substrate (roof deck or surface) must be cleaned, free of debris, and properly prepared before installation.



Insulation is often placed over the existing substrate to provide thermal insulation and improve energy efficiency.



A suitable underlay may be applied to the substrate to provide additional protection and a smooth surface.


Membrane Installation

The reinforced bitumen membrane is laid out and adhered to the substrate using methods such as torching, cold adhesion, or self-adhesion.


Protection Layer

In some cases, an additional protection layer, such as gravel or pavers, may be added on top of the membrane for increased durability and protection against UV.

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Testimonials That Speak
for Themselves

Would use again!

“Over the Summer 2017 holidays we had a large part of our flat roof replaced. Invictus Roofing worked cleanly without disruption to the school. Any issues raised were resolved promptly. We would use Invictus Roofing again”

Martine Rhodes
Business Manager-Middle Street Primary

"Will use again"

"Guys came round and inspected a leak on our warehouse roof after we have a large intake of water near our stock on the mezzanine. Josh provided a temp fix to get us through a patch of weather we had inbound before he returned to seal the roof with more materials. Kept us in the loop the whole time and helped us keep the costs down. Have used before and will use again when the time comes."

Josh Buckwell

"Very Impressed!"

We have just had a major roof replacement at our School carried out by Invictus Roofing. As it was carried out in term-time, we were very impressed with the contractor and the way the work was carried out. We also had SAT’s exams week during the contract, and the team was very accommodating by changing their shift pattern to suit the school. All works were carried out to a very high quality, with all areas left clean and safe for the duration of the works. We would highly recommend Invictus Roofing and would have no hesitation in using them again.

Fergus Walsh
Premises Manager, Carden Primary School

"Invictus Roofing fulfilled all requests"

We had a very large roof replacement completed on split sites at Hove Park School in 2017. We had a large area of the Nevill Campus roof replaced over the changing rooms and student toilets, which was conducted during the school holidays. Invictus Roofing fulfilled all requests, solved any issues, and always put our student’s needs and safety first. I would happily use Invictus Roofing again in the future.”

Danny Compton
Site Manager, Hove Park School and Sixth Form College

Contact the Invictus Team Today!

Our team of experts value high-quality solutions, workmanship, and communication, ensuring that every project that we undertake is not only aesthetically pleasing but also provides long-term protection and reliability.

We're proud to have delivered our services to many satisfied clients throughout the South of England, building lasting relationships along the way.

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