What You Should Know about Applying EPDM Rubber Roof Compound

EPDM rubber roof compound offers a significant number of benefits when compared to competing rubber products on the market, as well as to conventional roofing substrates. It’s long lasting, affordable, and incredibly durable. It also provides significant resistance to heat and cold, doesn’t crack or flake, and can be used with almost any substrate out there. Of course, you’ll need to know a few things about installing/applying the compound to your roof.

Tools You’ll Need

If your roof is 5,000 square feet or less, you can get the job done with just hand tools. However, if your roof is larger than this, you may want to use an airless sprayer to apply the EPDM rubber roof compound. This will take less time than attempting to apply it by hand. Note that you should never use an air-powered sprayer, though, as this can cause problems with the application by creating air bubbles in the rubber.

In terms of hand tools, you’ll only need a few. You will definitely need a squeegee with a long handle (a broom handle works well). You will also need a paint roller with a long handle, as well as an electric drill. For cleanup, you’ll want some mineral spirits on hand.

Prep Prior to Applying

Before you can apply EPDM rubber roof compound, you’ll need to do a little bit of prep work. Inspect the roof and make sure that there are no repairs needed to the substructure. Any repairs needed should be handled before applying the compound. Once the repairs are completed (if necessary), you’ll just need to clean the roof and make sure that all debris is removed. If your roofing substrate is not compatible with direct application of EPDM roofing compound, you’ll need to apply a coat of primer, as well.

Temperature Considerations

Note that you can apply EPDM rubber roof compound at any temperature. However, it will not begin curing until the temperature reaches at least 55 degrees F. The warmer the exterior temperature is, the faster the curing will proceed. With that being said, the EPDM compound is waterproof as soon as you apply it to the roof. It will not leak if it rains, even if the curing process is not completed. You also don’t need to worry about the temperature dipping below 55 degrees at night – curing will proceed once the temperature rises above the 55-degree mark the next day.

Application Time

Once you mix the catalyst into the compound, you have about four hours during which to apply the EPDM rubber roof repair material. It’s highly recommended that you only mix one bucket at a time to ensure that you have ample time to apply it before curing starts.

EPDM rubber roof is an ideal solution for homes and businesses in need of roofing repair, but can also be applied to the entire roof, effectively providing a completely new roof that will last for decades.

2 thoughts on “What You Should Know about Applying EPDM Rubber Roof Compound

  1. I actually have a small flat roof that has been coated with sheets of epdm rubber. There is quite a bit of patching on it…
    Could it be possible to cover that rubber roof with you liquid rubber? if yes, what are the steps?
    Thank you for your help in that matter.
    Sincerely,
    PL

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