What Are the Pros and Cons of EPDM Roofing in Oregon?

If you’re evaluating roofing choices for a flat or low-slope roof here in Eugene, OR, EPDM roofing should be something you’re looking at. This solid, single-ply option has a good track record of handling our intense desert conditions when installed correctly.

Advantages of EPDM Roofing

Stands up to Sun

You’ll appreciate how this rubber membrane holds up against the relentless Oregon conditions. Its built-in resistance to ultraviolet rays means it does not crack or degrade quickly, so it’s perfect for use in areas with high sun exposure.

Lasts 25 to 50 Years

This material has some pretty impressive durability. With proper installation and regular care, you can expect it to last between 25 and 50 years, depending on thickness and how well it is maintained. That gives you a strong return on investment for both commercial buildings and homes.

Flexible in Temperature Changes

Flexibility is a really big plus in our Mediterranean climate. The membrane on EPDM has the ability to expand and contract with day/night temperature swings without becoming brittle or splitting. This helps it stay watertight.

Fast to Build

Installation costs are often lower with EPDM than many other single-ply systems, and the lightweight rolls make the job faster for crews working on flat or low-slope roofs.

Simple to Repair

Repairs are really quite straightforward with this roofing system. You or a professional can patch any punctures or seams quickly, and the fix usually bonds well and lasts.

Good Water Resistance

Water resistance ranks high on the list of pros for this roofing system. Once it’s been sealed properly, the membrane forms a continuous barrier that can handle those monsoon rains, provided the roof has adequate drainage.

Challenges to Consider in Eugene, OR

Absorbs Rather Than Reflects Heat

In our hot climate, one drawback of this system is the material’s tendency to absorb rather than reflect heat, at least when used in its standard black form. This can raise your roof’s surface temperature and push up your building’s cooling costs.

Only Reasonably Puncture Resistant

There are stronger options out there for puncture resistance, so falling branches, dropped tools, or hail are a little more likely to create holes than with other systems. If you don’t go up on the roof much and don’t have nearby trees, this is a minimal concern, but you will want to inspect things after any hailstorm or when there’s been maintenance activity on the roof.

Needs to Be Installed Well

The seams and edges have to be done very well, because if the adhesive or fasteners are not applied exactly right, small gaps can open over time. Quality installation makes all the difference with this roofing system.

If you’re deciding what roof to put on your building, contact our team at NW Roofing Pros now. We have over two decades of hands-on experience serving the Valley, and we pride ourselves on our clear communication, quality workmanship, and problem-solving skills. Whatever your roofing issue, we can tackle it!

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