FHB Logo Facebook LinkedIn Email Pinterest Twitter X Instagram Tiktok YouTube 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
Log In
  • How-To
  • Design
  • Tools & Materials
  • Restoration
  • Videos
  • Blogs
  • Forum
  • Magazine
  • Members
  • FHB House
  • Podcast
Log In

Discussion Forum

Discussion Forum

Mildew problem

| Posted in General Discussion on November 12, 2002 02:05am

I am looking for any help in killing, removing, and preventing mildew that has formed on the interior surface of my cabin.  Details: Bandsawn pine timber frame const 3 years old, located in North Central Wisconsin, Not heated 24/7.

Thanks

Andy 

Reply
  • X
  • facebook
  • linkedin
  • pinterest
  • email
  • add to favorites Log in or Sign up to save your favorite articles

Replies

  1. debarker | Nov 12, 2002 04:28am | #1

    ANY mold can be a heck of an allergin : you gotta get it outta there. Is it black mold / it's the worst ? Generally any mold can be killed with a mild bleach solution : but if mold spores are in the air and the right conditions exist it will be back. Most mold likes moisture : I bet you've got a low airflow sirtuation in there with lots of damp air : is there any way to increase airflow ? this seems like your only option / can you remove trees blocking sun and increase solar passive heating ? (without heat you wont get rid of the moisture by dropping relative humidity by raising the temperature) . Good luck : this is a real health issue and a major pain to tackle effectively.

    1. AWilke2 | Nov 13, 2002 02:06am | #4

      Tkanks for the response, airflow and sun loght are not an option. I am considering a portable UV for the air borne spore which I think will clean up the air, but I need to get rid of the source. After I posted the msg (ffirst time) I found the search engine and there was a lot of info, almost all comes back to a form of chlorine. My growth is definatly black. The other problem is any dwelling that is not heated to a controlled climate of temp and humidity passes thru dew point several times a day. With wood heat, I am sure that there is an ideal habitat for growth. This all points to a serious clean-up and than a maint. program.  Any suggestions on a clean up product?

      Thanks

      A Wilke

      Monroe, WI 

      1. debarker | Nov 13, 2002 02:38am | #5

        I had another thought on this : when you built the cabin how air tight did you make it ? Modern building practices point to an air tight structure for energy costs / kind of pointless if it isn't going to be heated . The point is if it is wrapped, and uses new windows (and heaven help you if its insulated) it's probably WAY to air tight for a non-HVAC'ed structure. This will defintiley create a mold-friendly set of conditions......

        1. AWilke2 | Nov 13, 2002 06:56pm | #6

          Actually, I left the bldg fairly loose to allow the use of a cast iron wood stove. Cabin is 16 X 24 with 1/2" insulated shtg (black fiber product) under the verticle cedar siding. The roof system in visible pine boards, 1/2" insul shtg, 1/2" CDX and shingles. All windows are SSG sash.  I am still thinking about your comment on bandsawn lumber and mildew. I believe I am looking at a problem that I had from the begining.

          Andy

      2. User avater
        rjw | Nov 14, 2002 01:20am | #7

        The EPA website has recently been revised to provide more info on clean up.

        Don't get too worked up about the color; there are a zillion different kinds of molds, all with differing characteristics.

        Talking about black mold is roughly akin to talking about green plants.

        Mold needs 4 things to grow: air, temps between 40 100 degrees (typically) food (and wood is grade A prime for molds) and moisture./

        Control the moisture to control the mold.________________________________________________

        "I may have said the same thing before... But my explanation, I am sure, will always be different."  Oscar Wilde

    2. TLRice | Nov 21, 2002 04:22pm | #8

      Cutter,

      Not to pick on you personally, but you stated some common misconceptions and semi-facts about mold and fungi. If you or anyone else is interested in factual information about fungi (of which mold is one), look at the applicable article in the current ASHRAE Journal, viewable at their website, http://www.ashrae.org

      1. User avater
        rjw | Nov 21, 2002 05:40pm | #9

        Tim,

        Thanks for that link - ecxcellant!________________________________________________

        "I may have said the same thing before... But my explanation, I am sure, will always be different."  Oscar Wilde

  2. Piffin | Nov 12, 2002 06:02am | #2

    Scrubbing down with clorine 10% seems to be the recommendation lately. There are other sprays with tannic acid and borates too available commercially.

    I think that bandsawn wood is some of the worst for this. The blade runs through a water bath for cooling so it picks up spores in the bark, grows them in the water, and then spreads them around the surface of the fresh cut wood. Some cutters use chlorine in the water bath.

    .

    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. sdr25 | Nov 12, 2002 05:22pm | #3

    I've had success with Tilex removing mildew stains. To my ignorance it's probably nothing more than a chlorine bleach solution sold at a much higher price.

    Scott R.
  4. User avater
    Luka | Nov 21, 2002 09:03pm | #10

    Andy,

    Would it be too much to set up a large dehumidifier, and let it run 24/7/365 ?

    Don't bogart the Ghost

    Quittin' Time

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

Podcast Episode 693: Old-House Hazards, Building Larsen Trusses, AI in Construction

The crew talks about work start times, fire-resistant construction, fixer-uppers, building Larsen trusses, and AI for construction.

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 Episode 693: Old-House Hazards, Building Larsen Trusses, AI in Construction
  • FHB Podcast Segment: Finding Hazardous Materials in a Fixer-Upper
  • A Classic Paint Sprayer Gets a Thoughtful Refresh
  • Podcast Episode 692: Introduction to Trade Work, Embodied Carbon, and Envelope Improvements

Highlights

Fine Homebuilding All Access
Fine Homebuilding Podcast
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

Signing you up...

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

Fine Homebuilding Magazine

  • Issue 332 - July 2025
    • Custom Built-ins With Job-Site Tools
    • Fight House Fires Through Design
    • Making the Move to Multifamily
  • Issue 331 - June 2025
    • A More Resilient Roof
    • Tool Test: You Need a Drywall Sander
    • Ducted vs. Ductless Heat Pumps
  • Issue 330 - April/May 2025
    • Deck Details for Durability
    • FAQs on HPWHs
    • 10 Tips for a Long-Lasting Paint Job
  • Issue 329 - Feb/Mar 2025
    • Smart Foundation for a Small Addition
    • A Kominka Comes West
    • Making Small Kitchens Work
  • Issue 328 - Dec/Jan 2025
    • How a Pro Replaces Columns
    • Passive House 3.0
    • Tool Test: Compact Line Lasers

Fine Home Building

Newsletter Sign-up

  • Fine Homebuilding

    Home building tips, offers, and expert advice in your inbox.

  • Green Building Advisor

    Building science and energy efficiency advice, plus special offers, in your inbox.

  • Old House Journal

    Repair, renovation, and restoration tips, plus special offers, in your inbox.

Signing you up...

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

Follow

  • Fine Homebuilding

    Dig into cutting-edge approaches and decades of proven solutions with total access to our experts and tradespeople.

    Start Free Trial Now
    • Facebook
    • Instagram
    • X
    • LinkedIn
  • GBA Prime

    Get instant access to the latest developments in green building, research, and reports from the field.

    Start Free Trial Now
    • Facebook
    • YouTube
  • Old House Journal

    Learn how to restore, repair, update, and decorate your home.

    Subscribe Now
    • Facebook
    • Instagram
    • X
  • Fine Homebuilding

    Dig into cutting-edge approaches and decades of proven solutions with total access to our experts and tradespeople.

    Start Free Trial Now
    • Facebook
    • Instagram
    • X
    • LinkedIn
  • GBA Prime

    Get instant access to the latest developments in green building, research, and reports from the field.

    Start Free Trial Now
    • Facebook
    • YouTube
  • Old House Journal

    Learn how to restore, repair, update, and decorate your home.

    Subscribe Now
    • Facebook
    • Instagram
    • X

Membership & Magazine

  • Online Archive
  • Start Free Trial
  • Magazine Subscription
  • Magazine Renewal
  • Gift a Subscription
  • Customer Support
  • Privacy Preferences
  • About
  • Contact
  • Advertise
  • Careers
  • Terms of Use
  • Site Map
  • Do not sell or share my information
  • Privacy Policy
  • Accessibility
  • California Privacy Rights

© 2025 Active Interest Media. All rights reserved.

Fine Homebuilding receives a commission for items purchased through links on this site, including Amazon Associates and other affiliate advertising programs.

  • Home Group
  • Antique Trader
  • Arts & Crafts Homes
  • Bank Note Reporter
  • Cabin Life
  • Cuisine at Home
  • Fine Gardening
  • Fine Woodworking
  • Green Building Advisor
  • Garden Gate
  • Horticulture
  • Keep Craft Alive
  • Log Home Living
  • Military Trader/Vehicles
  • Numismatic News
  • Numismaster
  • Old Cars Weekly
  • Old House Journal
  • Period Homes
  • Popular Woodworking
  • Script
  • ShopNotes
  • Sports Collectors Digest
  • Threads
  • Timber Home Living
  • Traditional Building
  • Woodsmith
  • World Coin News
  • Writer's Digest
Active Interest Media logo
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
  • Project Guides
  • Reader Projects
  • Magazine
  • Members
  • FHB House

Podcasts

  • FHB Podcast
  • ProTalk

Webinars

  • Upcoming and On-Demand

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

Online Learning

  • Courses
  • Project Guides
  • Reader Projects
  • Podcast

More

  • FHB Ambassadors
  • FHB House
  • Customer Support

Account

  • Log In
  • Join

Newsletter

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

Signing you up...

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

Follow

  • X
  • YouTube
  • instagram
  • facebook
  • pinterest
  • Tiktok

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 70%

Subscribe

Enjoy unlimited access to Fine Homebuilding. Join Now

Already a member? Log in

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

Privacy Policy Update

We use cookies, pixels, script and other tracking technologies to analyze and improve our service, to improve and personalize content, and for advertising to you. We also share information about your use of our site with third-party social media, advertising and analytics partners. You can view our Privacy Policy here and our Terms of Use here.

Cookies

Analytics

These cookies help us track site metrics to improve our sites and provide a better user experience.

Advertising/Social Media

These cookies are used to serve advertisements aligned with your interests.

Essential

These cookies are required to provide basic functions like page navigation and access to secure areas of the website.

Delete My Data

Delete all cookies and associated data