Ballasted
Extra fire protection
The ballast not only secures the membrane but also provides an additional layer of fire safety for the roof.
Improved insulation and energy efficiency
The weight of the ballast helps with thermal insulation, improving the roof's energy efficiency.
Reduced drain clogging
Ballasted roofs minimize the risk of leaves blocking drains compared to exposed roofing.
Structural weight adaptability
Roofs with ballast provide versatile covering options, but require proper structural support to handle the additional weight effectively.
Ballasted method for EPDM
The membrane is loosely laid on the roof surface and then covered with ballast, such as gravel, green roofs, tiles, in accordance with applicable local regulations. In addition to serving as an attachment method, the ballast also provides extra fire protection to the roofing membrane. It shields the membrane from UV rays, extreme temperatures and physical damage, extending the lifespan of the roof. Gravel and green roofs further help slow down rainwater flow, reducing the risk of water pooling. Additionally, the risk of leaves clogging drains is lower compared to exposed roofs. It is important that the roof structure is designed to support the weight of the ballast when using ballasted roofing.
Ballasted with gravel
The membrane is loosely laid and anchored by the gravel’s weight, providing an aesthetically pleasing surface and natural fire protection. The gravel layer acts as a water reservoir during heavy rainfall, reducing the load on the drainage system and collecting debris to prevent clogged drains. This method offers a long-term economical roofing solution with superior lifespan and maintenance costs.
Green roofs
Enhance your EPDM roof with an eco-friendly and smart green roof. Green roofs offer aesthetic, environmental, and economic benefits while serving as ballast to secure the EPDM membrane. They can be covered with moss-sedum, herb-sedum, grass, or roof gardens, designed to endure prolonged rainfall or drought with minimal maintenance. Sealeco’ s EPDM membrane is ideal for green roofs due to its durability, root resistance, and resilience against moisture and microbiological attacks. Green roofs reduce water runoff, filter pollutants, provide insulation, and boost urban biodiversity. They also prevent drainage blockages by trapping debris on the surface instead of in drains.
Terraces and deck constructions
The inverted roof, particularly advantageous for terraces, is a variation of a traditional ballasted roof. It is a quick and easy installation, and the ballast provides additional protection against UV radiation and physical damage. First place the EPDM as a waterproofing layer and then the water-resistant insulation is placed above, providing not only thermal insulation but also mechanical protection for the waterproofing, which is especially important during the construction phase. The traditional insulation can also be placed between the waterproofing and the decking for additional mechanical protection. The ballast can consist of gravel, concrete slabs, green roofs, or wooden decking.
This method fits these building types
Here you can find all the building types that this method can be used for. Whether you’re working on residential homes, commercial offices, industrial warehouses or educational institutions, this method is versatile and adaptable. It can also be applied to for example healthcare facilities or retail spaces. No matter the project, this method ensures efficiency and effectiveness across various building types.
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