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I read a mechanical code that indicated a “cleanout” was required in the clothes dryer exhaust. What does that mean?

April 26, 2017cleanout clothes code dryer exhaust indicated mean mechanical read

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I read a mechanical code that indicated a “cleanout” was required in the clothes dryer exhaust. What does that mean?

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Answer Correct, the new “International Mechanical Code” specifically states on “Section 504.3 Cleanout – Every vertical riser shall be provided with a means of cleanout.” The intent of this code element is to provide an accessible means to remove the lint accumulation that would fall vertically (settle) to a low spot in the vertical run. If a means already exist to access this, (i.e., the usual ell through the drywall or a Dryerbox) then a cleanout is not required. Our engineers’ professional opinion is that The Dryerbox meets the requirements as a cleanout opening for the dryer exhaust system. Click here to download/print our “Sealed Engineers Letter” regarding the cleanout issue.