Bituminous membranes are widely used in construction for waterproofing flat or low-pitched roofs, balconies, and other structures. However, these membranes can become damaged over time due to various factors, such as exposure to harsh weather conditions, mechanical stress, or poor installation. If left unattended, this can lead to leaks, structural damage, and even collapse. This article will explore the steps you can take to repair damaged bituminous membranes and ensure your building remains safe and secure.

Understanding Bituminous Membranes


Before we dive into the repair process, it’s important to understand what bituminous membranes are and how they function clearly. These membranes consist of a foundation layer of polyester or fiberglass infused with a waterproof bitumen mixture. To provide additional protection against UV rays and enhance its durability, the membrane is then coated with a layer of fine mineral granules or a liquid coating. Bituminous membranes are recognized for their outstanding water-resistant qualities, flexibility, and ease of installation.

Identifying the Damage


To begin repairing a damaged bituminous membrane, it’s crucial to identify the specific areas requiring attention. This can be done through our experts, who visually inspect the roof or balcony. During the inspection, they monitor any signs of damage, such as cracks, tears, blisters, or places where the membrane has lifted or detached from the substrate. If the damage is severe, you may also notice water stains or mold growth on the interior of the building.

Applying the Patch


After preparing and cleaning the surface, you can commence applying the patching material. There are different alternatives to choose from, such as bitumen-based sealants, liquid coatings, and self-adhesive membranes. For minor repairs, you can apply bitumen-based sealants directly to the damaged area using a putty knife or trowel. Conversely, for larger repairs, use a roller or brush to apply liquid coatings. The most robust option is self-adhesive membranes, which can be customized to the required size and applied directly to the affected region.

Maintaining the Membrane


Proper care is essential to maintain the durability and efficiency of your bituminous membrane. Regular cleaning and inspections can prevent small concerns from developing into greater difficulties. Try cutting down any branches or overhanging plants that might harm the membrane. Clean up any debris from the balcony and roof before checking the membrane for signs of damage and wear.

Repair methods for bituminous membranes damaged by weather


There are several options for repairing damaged bituminous membranes. For instance, a one-component bitumen and water-based leveling paste can level and renew smooth or slated bituminous surfaces.
This paste is easy to work with and can create connecting covers between walls and roof corners. We recommended using bitumen and high-quality polymer-based adhesive sealants for sealing and overlapping joints.

Protect Your Roofing with Eurobit Water-Based Products


Discover the benefits of Eurobit water-based products for restoring and protecting your flat roof bituminous surfaces. Keep your roof cool and save on cooling costs while potentially increasing photovoltaic energy production. Contact us today for high-quality waterproofing products, excellent customer service, and superior quality on your projects.