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

Frost Heaving Mud Room

amyshed | Posted in Construction Techniques on January 28, 2013 12:54pm

Hello I am new to the forum and new to home ownership and need some advise.

We have been having continous issues with our mudroom frost heaving in the winter, to the point of not being able to open and close our door. The room was built on and has no foundation; under the room is (clay mix) dirt and held up by what I call car jacks, but a little bigger. We did a french drain, and added plastic and gravel in the front of the room moving the water away from the house, which did work for 1 year. But this year with the below freezing temperatures it’s beginning to heave again. The door won’t lock, cracks are appearing in the drywall and our new floor has a 1″ bludge in the corner from what I think is the jack pushing up.

Any thoughts advise would be welcome.

Also I have pictures of the cracks to give a better idea of what it’s doing.

Thank you

Amy

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

Replies

  1. DoRight | Jan 28, 2013 01:15pm | #1

    Probably screwed until spring

    Maybe others have some ideas. 

    You say the room is on jacks?  How odd.  Can you lower the jacks a bit?  Since the room is heaving, lowering it would make sense.  The trick would be to know which jacks to lower and which to leave alone.

    I would think in the spring or next summer you would wish to dig it out and put, at the very least, really concrete piers under the corners of your structure and end this situation once and for all.

  2. calvin | Jan 28, 2013 08:27pm | #2

    Amy

    Where is this place?  Why no foundation?   Are these jacks on a footing?

    Could you take some pictures of the structure and what's holding it up?

    thanks.

    Water might still be collecting below grade around this structure.

    There's a possibility you could bury 2" foam under the structure and above the footings (around the jacks) and extend that out a couple feet and maybe prevent the deep frost you seem to have there now.  Nice spring job.  You won't have to go deep, but regrading would certainly help to move the water away.

    1. amyshed | Jan 29, 2013 09:58am | #4

      Hi Calvin, Thank you for the response.

      In response to you reply I live in VT. I have taken some pictures of the underneath of the mudroom. It actually looks like we do have one post and a couple beam holders (sorry not sure of the correct term) and you'll see the car jack also. I have taken pictures of the outside of the mudroom front where our door is and the step that we made a little smaller which I believe is contributing to our heaving problem this year, and the side where our french drain is and one of the problem areas.

      I do realize that I won't be able to do anything at this point until spring. But as a temporary fix I was thinking of putting down some plastic on the side where the french drain is and putting a whole bunch of dirt to make a grade to re direct the water away from the house. It's not going to be pretty, but we need to try and do something to prevent further damage to our walls and door.

      I was having problems uploading the photos so I used my google account for people to view the pictures please let me know if you have any trouble.

      https://plus.google.com/photos/116177186099267869982/albums/5838887363421367489?authkey=COL1mJaG9YzSxwE

      1. calvin | Jan 29, 2013 04:30pm | #6

        Yikes Amy.........

        That was quite a scene.

        A couple of things-

        Those jacks and posts, they are probably doing something-what is hard to tell.   If there's a jack under a high spot, you could try to lower it.

        Some of these posts/jacks are in the middle of what some might think is a beam-an attempt I guess at holding up more than one of those "4x4 ""joists"" "?

        To say you should start all over is demoralizing, but I think the only way to go.  The room to work under there looks almost too small to be able to anything other than maybe stuff things to shore it up.  That's not the way to go.

        Have you had any good carpenters/masons/engineering genius's take a look?

        wow.

        1. DanH | Jan 29, 2013 08:09pm | #7

          On the other hand, it's in no danger of falling down.  Hard to tell what in particular is causing trouble with the door (other than heaving in general), but if something can be done to fix that then maybe there's no need to deal with the rest.

          1. amyshed | Jan 30, 2013 09:31am | #8

            True..but..

            Very true Dan.There are a few problem's right now happening to the room itself. One of the posts holding up the mudroom by the door seems to be pushing up threw the floor. We put in a pretty expensive waterproof flooring thats breaking as the room is heaving, also I have cracks in my drywall now. And the door becoming harder and harder to open, and locking is a real bummer.

            We are looking for alternatives other than tearing it down and starting from scratch. Like keeping the water away from the building. Creating a grade with dirt and using plastic as a barrier and redirecting the water, might be the cheapest possible fix. Next would be trying to use an exavator and digging up the whole front taking out our french drain and putting in posts like it should have had in the first place.

        2. amyshed | Jan 30, 2013 09:43am | #9

          Huge mess

          Yeah it's a big mess under the mudroom. When we bought the house we never knew that the mudroom was going to be such a problem. We haven't had anyone come and look at the mess fearing what you said about tearing it all down and starting from scratch. We would like to find alternatives that are a lot less costly. I wish we could start from strach. We would change a lot including creating the foundation for the room and doing it the correct way. I don't see how someone can get a permit and have no inspectors come out and make sure a person is creating a proper safe foundation for a room.

          Do you think is we filled up that area on the side and front with dirt to create a grade and use platic as a barrier to re direct the water away from the house would work as a temporary solution?

          I like your foam idea I was thinking the same thing, but like you said it's pretty much a crawl space. We have a basement window where I took those pictures so we can see into the bottom of the room, thats our only entry. I was thinking of cutting the plywood on the side of the house (which by the way is a whole sheet of plywood going into the ground) and working that way by doing one sheet of foam at a time. I would be the only one to fit under there, but I think it could be done. 

          1. DanH | Jan 30, 2013 07:50pm | #10

            The problem is that there's no room to work under there.  (Maybe a real skinny could do something, but most of us have too much excess avordupois to even conceptualize how one might do things.)

            If there was, say, two feet of space below the "joists" one could install a system of reenforcements.  But even then the footings are a problem and would have to be dug out and redone right.

            Maybe the best bet would be to use an auger to dig holes directly adjacent to the "foundation" and install pilings, then run steel joists through directly under the stuff that's there, somehow anchoring it to the side of the house foundation.

            But anything you do would be made much easier by tearing up the floor, I'm afraid.

  3. DanH | Jan 28, 2013 09:55pm | #3

    Yeah, mainly you want to keep it dry, but the suggestion to insulate the footings is also good, if it's practical to do. 

    1. DoRight | Jan 29, 2013 11:20am | #5

      It is almost Feb., my guess is the damage is done and the lifting is as bad as it is going to get.  Teh water in the ground below whatever footing, posts, jack, etc. is already frozen as evidenced by the lifitng.  Once expanded it is expanded.  So now there is no where to go but back down.  Insulation is not likely to help today.  Keep water away?  Always a good idea, but he time to have kept it away was before it saturated the earth below the footing, post (or whatever) and before it froze.

      Good luck in the spring.  Again, I would dig this puppy down below frost level and put in proper piers.  Foundation walls not necessary, but would allow for insulation etc.

      Goo Luck.

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

How Trump's “Big Beautiful Bill” Will Affect the Inflation Reduction Act

The Big Beautiful Bill could do away with much of the Inflation Reduction Act, including the 25C, 25D and 45L tax credits.

Featured Video

Video: Build a Fireplace, Brick by Brick

Watch mason Mike Mehaffey construct a traditional-style fireplace that burns well and meets current building codes.

Related Stories

  • How Trump's “Big Beautiful Bill” Will Affect the Inflation Reduction Act
  • A Drip-Free, Through-Window Heat Pump
  • Podcast Episode 690: Sharpening, Wires Behind Baseboard, and Fixing Shingle Panels
  • FHB Podcast Segment: Hand Tool Sharpening Tips

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
  • Old House Journal – August 2025
    • Designing the Perfect Garden Gate
    • Old House Air-Sealing Basics
  • Issue 329 - Feb/Mar 2025
    • Smart Foundation for a Small Addition
    • A Kominka Comes West
    • Making Small Kitchens Work

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