Siphonic Roof Drainage | Standards Michigan

Siphonic Roof Drainage


Siphonic Roof Drainage

February 1, 2019
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“Thatched-Roof Cottage” | A Lake (1858) | Harvard University Art Museum Thatched-Roof Cottage By A Lake

The American Society of Plumbing Engineers (ASPE) is dedicated to the advancement of the science of plumbing engineering, to the professional growth and advancement of its members and the health, welfare and safety of the public.   ASPE disseminates technical data and information, sponsors activities that facilitate interaction with fellow professionals, and, through research and education, expands the base of knowledge of the plumbing engineering industry.

ASPE has released a redline for ASPE 45 Siphonic Roof Drainage; a consensus document that sets the standard for engineered siphonic roof drainage systems intended to prime and operate full-bore through proper pipe dimensioning and the use of siphonic roof drains.   Access to the ASPE Public Commenting facility is linked below:

ASPE Standards Development Home Page

The actual redline is available in its entirety in the link below:

ANSI Standards Action | Pages 19-20

Comments are due February 10th.  You may obtain a fully copy of the present edition by contacting Gretchen Pienta, (847) 296-0002,,  6400 Shafer Court, Suite 350, Rosemont, IL 60018.

We have all water system codes and standards on the agenda of our next monthly Water Standards teleconference; the next on February 13th, 11 AM.   This is after the ASPE deadline on this release but we are happy to work through it any day during one of our 11 AM EST teleconferences.  Use the login credentials at the upper right of our home page.

Tufts University


Issue: [19-11]

Category: Architectural, Mechanical Engineering, Water

Colleagues: Richard Robben, Larry Spielvogel



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