FHB Logo Facebook LinkedIn Email Pinterest Twitter Instagram Plus Icon Close Icon Navigation Search Icon Navigation Search Icon Arrow Down Icon Video Guide Icon Article Guide Icon Modal Close Icon Guide Search Icon Skip to content
Subscribe

In every issue you'll find...

  • Expert insights on techniques and principles
  • Unbiased tool reviews
  • Step-by-step details to master the job
  • Field-tested advice and know-how
Subscribe Now!
Subscribe
  • How-To
  • Design
  • Tools & Materials
  • Videos
  • Blogs
  • Forum
  • Magazine
  • Members
  • FHB House
  • Podcast
  • Join
  • Log In
Subscribe

Discussion Forum

Discussion Forum

Soap suds on the roof

| Posted in General Discussion on December 25, 2002 02:21am

I was working at a clients house the other day, up on the patio cover, and happened to notice a significant pile of soap suds around one vent stack.  About 3 gallons of suds.  Single story house, I haven’t been inside but I assume it was the vent for the washer.  What would cause this?  I want to approach the client about this, but would like to have some idea of what caused it so I can offer an intelligent solution.

 

Reply

Replies

  1. MajorWool | Dec 25, 2002 03:28am | #1

    It is from the dryer. Water vapor and soap condense when cooled. Our old neighborhood in baltimore was a bunch of row houses with flat roofs. When it rained, the first stuff out of the drain pipes (which all emptied into the back yards and drained by gravity to the storm sewers in the alley) was mostly soap bubbles, and gradually it got clearer as the roofs were washed clean. Not sure if there is any option other than using less soap in her wash or extending the pipe so it condenses further from the house. FWIW, we just got one of those front loading frigidaires, and it is the nutz. Uses next to no soap or water, cleans better, and the high speed spin has cut drying time by about 40%. I figure the machine will pay for itself in about 3 years at current energy rates.

    1. suntoad | Dec 25, 2002 04:32am | #2

      I think your Frigidaire salesman was blowing bubbles up your derrier.  (Assuming that's where you got the notion that dryer vents cause soap bubbles on a roof). 

      The way I read the post, the suds were coming out of a vent stack, not a dryer vent.

      Indeed, the suds were almost certainly from the washer discharge which was probably directly tied into the stack below.  Too much soap in the wash and probably an undersized drain line from the washer contribute to this occurance.  Bubbles fill up the stack and overflow it.   (And what size was the vent stack--3", or smaller?)

      1. FastEddie1 | Dec 25, 2002 05:16am | #3

        Thanks for the reply, Froggy.  When I read the reply from wood, I had to go back and read what I had posted to be sure it was the same thread.  The vent is maybe 3", possibly smaller.  I had assumed that it was way too much soap, but was curious if this is a sign of a partially clogged drain or something.  Guess not, as that would probably show up as water on the floor.

        1. noone51 | Dec 25, 2002 06:10am | #4

          Too much fall on the drain line causes the water to leave and the soap to stay behind. Eventually, the soap suds back up and spew out the vent. Dumb plumber question no. 45 in apprentiship training school. Suprised you didnt find them in the sinks and toilets also.

        2. Piffin | Dec 25, 2002 06:42am | #5

          LOL, I had to look twice to see if I wasn't in the Tavern!.

          Excellence is its own reward!

          "The first rule is to keep an untroubled spirit.

          The second is to look things in the face and know them for what they are."

          --Marcus Aurelius

          1. john31136 | Dec 27, 2002 08:59pm | #6

            If the soap could be "left behind", how does it climb up the vent pipe?

          2. UncleDunc | Dec 28, 2002 12:39am | #7

            Same way it climbs up the drain pipe into the other sink in a two bowl kitchen sink. The turbulence in the draining soapy water creates suds and the suds float on the water.

          3. Piffin | Dec 28, 2002 03:34am | #8

            soap floats

            See the ring of soap scum in a bathtub.

            The waste line is a smaller tub

            Add turbulence time after time and you add to the amt of soap in action.

            I think too much soap is being used in this laundry..

            Excellence is its own reward!

            "The first rule is to keep an untroubled spirit.

            The second is to look things in the face and know them for what they are."

            --Marcus Aurelius

  2. User avater
    ProDek | Dec 28, 2002 07:48pm | #9

    Maybe a smaller "Cup" of soap or use "1/2 Cup" instead of a bucket. Never heard of blowing  bubbles out of the roof vent before. So that's where Lawrence Welk got it from. "turn off the bubble machine" a one, ana two, ana three.

    Bob

    "Rather be a hammer than a nail"

    1. User avater
      JeffBuck | Dec 29, 2002 12:17pm | #11

      Brings back bad memories from being babysat by Grandma!

      Loved that woman to death....but a guy can take only so much Lawrence!

      Saturdays at around 7pm , if I remember correctly.

      Bless her.........that woman nearly drove me nuts!

      JeffBuck Construction   Pittsburgh,PA

       Fine Carpentery.....While U Waite                  

      1. Piffin | Dec 29, 2002 07:40pm | #12

        I used to hate it when my parents put that show on.

        Now mt wife is getting that old...

        I still hate it..

        Excellence is its own reward!

        "The first rule is to keep an untroubled spirit.

        The second is to look things in the face and know them for what they are."

        --Marcus Aurelius

  3. 4Lorn1 | Dec 28, 2002 09:49pm | #10

    Someone is watch far too much Lawrence Welk. Perform an accordion extraction and, after the withdrawal period is over, the people should start behaving normally and the problem will disappear.

Log in or create an account to post a comment.

Sign up Log in

Become a member and get full access to FineHomebuilding.com

Video Shorts

Categories

  • Business
  • Code Questions
  • Construction Techniques
  • Energy, Heating & Insulation
  • General Discussion
  • Help/Work Wanted
  • Photo Gallery
  • Reader Classified
  • Tools for Home Building

Discussion Forum

Recent Posts and Replies

  • |
  • |
  • |
  • |
  • |
  • |
View More Create Post

Up Next

Video Shorts

Featured Story

Adaptive Rainscreen Siding Clips

This fastening system from Nova USA Wood Products accommodates natural wood siding expansion and contraction.

Featured Video

A Modern California Home Wrapped in Rockwool Insulation for Energy Efficiency and Fire Resistance

The designer and builder of the 2018 Fine Homebuilding House detail why they chose mineral-wool batts and high-density boards for all of their insulation needs.

Related Stories

  • Podcast 463: The Best of the Fine Homebuilding Podcast, Volume 3
  • Fine Homebuilding – July 2022, Issue #308
  • Pretty Good House Book Excerpt: Copper Farmhouse
  • Fine Homebuilding Issue #308 Online Highlights

Highlights

Fine Homebuilding All Access
Justin Fink Deck Building Course announcement
Tool Tech
Plus, get an extra 20% off with code GIFT20

"I have learned so much thanks to the searchable articles on the FHB website. I can confidently say that I expect to be a life-long subscriber." - M.K.

Get home building tips, offers, and expert advice in your inbox

Sign Up See all newsletters

BOOKS, DVDs, & MERCH

Shop the Store
  • Pretty Good House
    Buy Now
  • Outdoor Projects
    Buy Now
  • Code Check Building 4th Edition
    Buy Now
  • 2021 Fine Homebuilding Archive
    Buy Now
  • Shop the Store

Fine Homebuilding Magazine

  • Issue 308 - July 2022
    • Pretty Good House Book Excerpt: Copper Farmhouse
    • 10 Dos and Don'ts for Electric In-Floor Heat
    • A Sturdy Rail for Outdoor Stairs
  • Issue 307 - June 2022
    • How to Raise a Post-Frame Home
    • Trimming Deck Stairs
    • Evolving an Energy-Efficient Envelope
  • Issue 306 - April/May 2022
    • Framing Stairs to an Out-of-Level Landing
    • Building a Zero-Energy Home for Less
    • Good-Looking and Long-Lasting Traditional Gutters
  • Issue 305 - Feb/March 2022
    • The Steady Surge in Residential Solar
    • The Fine Homebuilding Interview: William B. Rose
    • How Good Is Your Air Barrier?
  • Issue 304 - Dec 2021/Jan 2022
    • Why You Need Blower-Door Testing
    • Passive-House Standards for Everyone
    • Window Replacement With a Side of Rot Repair

Fine Homebuilding

Follow

  • twitter
  • facebook
  • instagram
  • pinterest

Newsletter

Get home building tips, offers, and expert advice in your inbox

Sign Up
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
See all newsletters

Membership & Magazine

  • Online Archive
  • Start Free Trial
  • Magazine Subscription
  • Magazine Renewal
  • Gift a Subscription
  • Customer Support
  • Privacy Preferences

Taunton Network

  • Green Building Advisor
  • Fine Woodworking
  • Fine Gardening
  • Threads
  • About
  • Contact
  • Advertise
  • Careers
  • Copyright
  • Terms of Use
  • Site Map
  • Do not sell my information
  • Privacy Policy
  • Accessibility
  • California Privacy Rights

© 2022 The Taunton Press, Inc. All rights reserved.

X
X
This is a dialog window which overlays the main content of the page. The modal window is a 'site map' of the most critical areas of the site. Pressing the Escape (ESC) button will close the modal and bring you back to where you were on the page.

Main Menu

  • How-To
  • Design
  • Tools & Materials
  • Video
  • Blogs
  • Forum
  • Reader Projects
  • Magazine
  • Members
  • FHB House

Podcasts

  • FHB Podcast
  • ProTalk

Webinars

  • Upcoming and On-Demand

Account

  • Log In
  • Join

Podcasts

  • FHB Podcast
  • ProTalk

Webinars

  • Upcoming and On-Demand

Popular Topics

  • Kitchens
  • Business
  • Bedrooms
  • Roofs
  • Architecture and Design
  • Green Building
  • Decks
  • Framing
  • Safety
  • Remodeling
  • Bathrooms
  • Windows
  • Tilework
  • Ceilings
  • HVAC

Magazine

  • Current Issue
  • Past Issues
  • Magazine Index
  • Subscribe
  • Online Archive
  • Author Guidelines

All Access

  • Member Home
  • Start Free Trial
  • Gift Membership

Shop the Store

  • Books
  • DVDs
  • Taunton Workshops

More

  • FHB Ambassadors
  • Reader Projects
  • Podcast
  • Customer Support

Account

  • Log In
  • Join

Newsletter

Get home building tips, offers, and expert advice in your inbox

Sign Up See all newsletters

Follow

  • twitter
  • facebook
  • instagram
  • pinterest

Join All Access

Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features.

Start Your Free Trial

Subscribe

FHB Magazine

Start your subscription today and save up to set_percent%

Subscribe

We hope you’ve enjoyed your free articles. To keep reading, become a member today.

Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine.

Start your FREE trial

Already a member? Log in