Holmes waterproofing

What is a bitumen membrane?

A bitumen membrane is a type of waterproofing material that is often used in roofing and other construction applications. It is made from a mixture of asphalt and other materials, and can be applied in a variety of ways.

There are many benefits to using a bitumen membrane, including its durability and resistance to weathering. It can also be applied to a variety of surfaces, making it a versatile waterproofing solution.

If you are considering using a bitumen membrane for your next project, here is everything you need to know about this popular waterproofing material.

Holmes waterproofing

What is a bitumen membrane.

What are its benefits

A bitumen membrane is a type of roofing material that offers many benefits. It is durable, easy to install, and provides excellent protection against weather damage. Bitumen membranes are also fire resistant and energy efficient, making them an ideal choice for both commercial and residential applications.

What are its applications

Bitumen membranes can be used on a variety of roofing types, including flat roofs, metal roofs, and asphalt shingle roofs. They are often installed over a layer of insulation or underlayment to provide an additional layer of protection. Bitumen membranes can also be used as a waterproofing material in foundation walls and other below-grade applications.

How is a bitumen membrane made.

The manufacturing process

Bitumen membranes are made by combining a bitumen compound with reinforcing materials such as fiberglass or polyester fabric. The mixture is then placed onto a roll and left to cool and harden. Once it has cooled, the membrane is then cut to size and ready for installation.

The materials used

The materials used in the production of bitumen membranes vary depending on the manufacturer. However, common materials include asphalt, fiberglass, polyester fabric, and rubberized asphalt.

How to install a bitumen membrane.

The steps involved

The first step is to clean the surface area where the membrane will be installed. This important step ensures that the surface is free of any debris or contaminants that could potentially impede the installation process or reduce the lifespan of the membrane. Next, a layer of asphalt emulsion is applied to the surface as a primer. Once the primer has been applied, the bitumen membrane can then be rolled out onto the surface. The final step is to apply a layer of gravel over top of the membrane to protect it from UV rays and other environmental elements.

Important considerations

There are a few important things to keep in mind when installing a bitumen membrane. First, it is important to make sure that the surface area is completely level before starting the installation process. Any unevenness could create weak spots in the membrane that could lead to leaks or other problems down the road. Additionally, it is important to work quickly once the primer has been applied, as it will start to dry relatively quickly. Finally, be sure to compact any gravel that is applied over top of the membrane to ensure that it stays in place and does not shift over time.


A bitumen membrane is a type of waterproofing material that is made from asphalt. It is often used on roofs and in other applications where water resistance is important. Bitumen membranes are typically made by combining asphalt with a reinforcement material, such as fiberglass or polyester. The resulting sheet is then rolled out and installed over the desired area. When installing a bitumen membrane, it is important to take care to avoid wrinkles or folds, as these can reduce the effectiveness of the waterproofing.

Open chat
Need help?
Hi there,
Can I offer you a FREE no obligation quote?