Roof EPDM Arma is an EPDM membrane with integrated polyester reinforcement. The reinforcement limits elongation and increases the membrane’s tensile strength, stability, and dimensional stability. Mechanical loads are distributed evenly. Greater control in every roof system.
Integrated polyester reinforcement
High dimensional stability and tensile strength, limited elongation
Designed for mechanically fastened roofs
Roof EPDM Arma is a single-ply EPDM membrane with integrated polyester reinforcement. While unreinforced EPDM membranes excel primarily in elasticity, Roof EPDM Arma was developed to maintain its dimensions as effectively as possible. The reinforcement limits elongation and increases tensile strength, stability, and dimensional stability.
Mechanical loads are distributed across the membrane. As a result, Roof EPDM Arma is particularly well-suited for roof structures where stability is paramount: mechanically fastened roof waterproofing systems, industrial and commercial buildings, and projects with increased mechanical loads.
Polyester reinforcement: limited elongation and high dimensional stability
High tensile strength and stability, even under mechanical stress
Reliable installation on large roof surfaces

Roof EPDM Arma is designed for industrial and commercial buildings, mechanically fastened roof waterproofing systems, projects with increased mechanical loads, and applications where dimensional stability is more important than maximum elasticity.
View the technical documentation

Thickness: 1.52 mm. Width: 3.05 m. Length: up to 30 m (upon request). EPDM membrane with integrated polyester reinforcement.

A mechanically fastened EPDM roof is removable and forms the basis for BossCover Circular System. With Roof EPDM Arma, the membrane retains its dimensional stability under load.

BossCover offers three EPDM membranes, each designed to meet different installation requirements. They are compatible with the same range of system products: adhesives, tapes, flashings, vapor barriers, and accessories. Flexible, self-adhesive, or reinforced. Always BossCover.
EPDM Roofing: Flexible and Versatile, Available in Widths Up to 12.20 m
Roof EPDM Fix Pretaped: self-adhesive and efficient, for quick installation
Arma EPDM Roofing: Reinforced and Dimensionally Stable, for Mechanically Fastened Roofs (this page)
BossCover EPDM is a single-ply membrane that is lightweight and has high tensile strength. It is installed without an open flame, requires little maintenance, and is suitable for roofs with rainwater harvesting systems. It is a roof that lasts a long time, can be repaired, and remains recyclable.
Expected service life of 70 years and a 15-year product warranty
Resistant to UV, ozone, rain, heat, and frost
No open flame, low maintenance throughout its service life
Recoverable and recyclable: EPDM that is no longer reused is given a new purpose through Rooftile XL

In addition to membranes, BossCover offers a complete range of system products for roof finishing: adhesives, tapes, flashings, vapor barriers, and accessories. Everything from a single supplier, designed to work together, and installed without the use of an open flame.
For details and connections: BossCover Primer, Splice Tape, Cover Strip, Flashing Tape, SA Flashing, Corner Flashing, Roof Edge Tape, and Rubber Seal.
For fastening and edging: Perimeter Strip, RMA Strip, and BossCover Mounting Anchor.
Check out the " BossCover " tapes and accessoriesVapourShield HM, VapourShield BIT, and VapourShield Primer: vapor barriers and a primer from the same product line, designed for EPDM roofing systems.
For adhesives and primers: SolidBond, SprayBond, SprayBond Plus, and the corresponding cleaners.
Check out BossCover VapourShield
You can determine the roof system in two steps: first, choose the membrane that’s right for the project, and then decide how it will be installed.
Step 1, membrane: Roof EPDM (versatile), Roof EPDM Fix Pretaped (quick installation), or Roof EPDM Arma (high dimensional stability)
Step 2, installation method: fully bonded (sleek appearance, lightweight construction), loose-laid with ballast (easy installation), or mechanically fastened (removable, basis for the Circular System)
Not sure? Our team will help you choose the combination that's right for your project
Submit your information to receive the “ BossCover EPDM Roofing Systems 2026” brochure, featuring the three membranes, all system products, and the specifications. Do you have a specific project or a question about installation? If so, our team will contact you. Roof EPDM Arma will also be featured at Belgian Roof Day on October 16.