Should I Repair or Replace My Existing EPDM Roof?

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When it comes to commercial roofing systems, there are a variety of options available. Ethylene propylene diene monomer (EPDM) is a synthetic rubber membrane that offers extreme durability and is generally considered one of the best roofing materials for a flat commercial roof. An EPDM roof is designed to provide protection for a lengthy period, while also offering insulating benefits.

When you are deciding to repair or replace your roof, one of the first steps is to assess the type of damage and the installation. Ballasted installation, mechanical attachment or fully adhered installation systems are typically used when installing commercial roofs.

When to Repair Your EPDM Roof

Ballasted or mechanically attached EPDM roofing systems are easier to remove in sections, allowing for repair of damaged sections without replacing the whole roof. If your roof only has damage in a small section, having that area repaired is the most cost-effective solution. 

On a fully adhered commercial roof, replacing a single section is not an option. In these cases, sealants and adhesives, specifically designed for EPDM roofs, will be used to provide a quality repair. There are also patches designed to be installed over defective sections, however, this type of roof repair is best left to professionals.

Inspecting an EPDM roof

When to Replace Your EPDM Roof

One reason to leave the repairs to the professionals is that if your roof membrane has become contaminated through the use of the wrong repair products, all of the EPDM material will require replacement. This situation occurs if asphalt-based products or roofing cements are used to attempt a repair on a commercial EPDM roof.

Additionally, if your roof is nearing the end of its expected useful life, has been subject to significant damage or the cost of repairs is close to that of a new EPDM roof, you should consider roof replacement. A professional roof inspection from a reputable roofing contractor will determine the amount of damage to your existing roof and weigh the costs of repairs or replacement. A trusted roofing contractor will provide you a professional recommendation on whether to repair or replace your EPDM roof.

An EPDM roof is an excellent choice for low-sloping, commercial applications. Warranties are available that range from five to 30 years with additional options for hail or puncture damage, ensuring your roof is protected for its expected life.

Inspecting an EPDM roof

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