Rotten Floor Joist Replacement on a MASSIVE scale! Entire House Floor Joist Replacement project.

Rotten Floor Joist Replacement on a Massive scale. Entire House Floor Joist Replacement project. This house was started in late 2004 and completed sometime around FEB 2008. It was a slow process and not all best practices were used at the time, which shows.
We are having to replace every floor joist, Sill plate, and Rim Joist under this house. The lumber that was used prior was just standard lumber which wasn't the best idea. It's in a wet climate, but also the lumber was sub-par from the get go.
Now the entire house has to be redone in a new way which will solidify the floor system and bring this house back up to a descent structural value. We won't be sparing any expense along the way, to make sure this is the 1st, last, and only time we have to do this project.
I'll be showing you some completed plumbing, flooring, and the start and end of a project part. Strap in and brace for the shock and awe!!!

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Thanks for watching.

[samuelclark]

Man what a job you are doing good work. Im so glad my joists aren't rotted, they are however warped and need some attention.

[JLAIrish]

It’s humid in the south in summer. I installed one of those electric vent fans under my house in southern Tennessee and it has made a world of difference.

[jordanquinatoa]

Massive job dude Thanks for showing is possible to fix. I have the same problem and tough is not possible to fix that.

[wind]

Dry rot as you call it is actually wood fungus. Wood fungus grows in damp dark places with un protected wood and can destroy more wood than termites in the same amount of time as it basically turns it into paper. If you haven't treated the wood under your home and corrected the moister issues you didn't actually fix the source of the problem . You can treat the fungus by spraying it with mold control . The moister issues can be fixed by crawlspace encapsulation, installing a dehumidifier, or using appropriate ventilation .

[maxmanx]

FYI - Pressure treated lumber does rot. I have 2x10s that literally crumble. The wood was destroyed by a fungus. The humidity in the air was enough for the fungus to thrive & spread. I also found white mold that destroys wood, too. Its also on pressure treated lumber. I'd ensure all your dirt slopes away from the house, your gutter downspouts discharge 10 to 20 feet away from your house, encapsulate crawlspace, and install crawlspace dehumidifier. You've done a lot work! Impressive!

[cecilbrisley]

Dry rot is a misnomer. The wood needs to have 20 percent moisture content in order to support the fungus. You will need to find the reason for the dampness and put a stop to it. That or condition the crawl space and closely monitor humidity. There will be millions of microscopic fungal spores just waiting for that humidity to start eating your new joists.

[videosrfunme]

ALSO for those watching if you use pressure treated wood>> Know if the wood is fir, larch or white woods. pressure treated white woods like pine in most cases ARE NOT structural in strength vertically. I once had a 6x6x12 roll off my flatbed and it broke in half. no knots or cracks, just weak.

[J-ohkg]

This was really well done- very clearly explained and helpful, thank you. 🙂

[MattyDemello]

Great job. I have around 3 joist in my basement that are cracked & now I have a saggy floor. On my 2nd floor, I also have a floor sagging, but i can't see in between my 1st floor ceiling & the 2nd floor joist. Im thinking a few must have cracks up on 2nd floor & thats why my 2nd floor is sagging too now. I would probably have to cut out large areas of my sheet rock on my 1st floors ceilings to see the 2nd floor joist. Im dreading it because i JUST re-done my 1st floor ceilings & now I'll have to rip some out to see the 2nd floor. Wish i noticed it before, but i think it just started. I've been hearing cracks & creeks once in a while. Hopefully its safe for now BUT with price of lumber & how everyone gone up the past 3 years im dreading buying the new joist & whatnot. In 2019 I was able to re-shingle my roof & replace a few boards. I rented a 45ft ladder, air composer for nail & staple guns, all the 25 boxes of asphalt shingles, weather paper, drip edge "around 8 peices like 16 foot" then the roll of lead for chimney. All of that plus paying a friend came out to $3.1k. I done ALL materials was $1.8k in materials & i paid a buddy to help & so i paid $3.1k total!! new roofing job & new lead around the chimney. I priced it all out last year in 2023 JUST out of curiosity. IT would've costed me around $10k. Crazy!! From $3.1k to 10k. Thats how much prices went up. In 2023 it would've been $10k. Absolutely insane. So i got lucky on my timing there. But now im afraid to even see the prices of new joist & wood & sheet rock. Boy oh boy. Got me panicky over it. Wish i had the money to have done it all when it was super cheap. Now its going to be very pricey. I Had gotten cancer in 2023, so this sagging floor project has been put on hold for the last 3 years, and now im holding off hopping prices drop again pre covid. And i filed a taxt embaitmate to get a tax break. I was a able to do these repairs while my property tax was $533 every 3 months. In January it went up to $897. So there goes my home repair money. Fingers crossed to except it without condemning it fully. Kinda scary.

[Matt-ej]

Sure wish you would have showed the actual work being done.

[UToobSteak]

We're in the midst of doing this right now. We have a couple rooms done so far. We don't have enough crawl space to do it from below though, so we're having to pull subfloor first, then replace any damaged sill plates/joists/beams. It's a job, but we got the house and property so cheap, it's worth doing. We bought enough advantech and treated 2 by lumber when the price came back down a month or so ago, so hopefully we don't have to buy more. Thanks for the vidya

[spayderninja]

Are you going to put down some plastic sheeting/tarp material to cover up the bare dirt that is allowing the moisture to cause the damage? I am closing on a house that is going to need the same repair. It looks like all of the floor joists will need to be replaced. After I get the joists fixed, I'm going to remove a lot of the dirt (to give me room to do repairs or mods in the future) to flatten the crawlspace and put down some heavy tarp-like plastic sheeting to prevent moisture. I will seal the seams with tape and try to remove any path that moisture might have to getting into the crawlspace. I will also look into some sort of ventilation system to help keep the crawlspace dried out.

[spartaeus]

DO NOT USE ADVANTEK!!! Our floor joists were almost as bad as yours. Our rim joist, sill plate, and lower wall plate are also badly rotted.
The Advantek flooring is rotted in our house along the outside walls, in the bathrooms, entrance ways, and kitchen. We would never use Advantek, It does not hold up. And this house was built in 2005. Any slight moisture will cause it to eventually turn into wood flakes. We are trying to figure out how to replace the outside wall on one side of the house without it collapsing.

[billgator]

i see this and think how did you arrive at a video of my cottage(an old house i bought for the purpose). it is rotted because of moisture and the darkness helps a bunch.
mine has complete concrete foundation around the perimeter of the house with access and vents.
for my situation( only throwing it out for all to consider), the wood sweats and then the surface moisture evaporates in a vicious cycle. the darkness helps aggravate the situation. the mold/ fungus like the dark. and then there is poor ventilation. seems it's a paradox. to have ventilation there is warm moist air entering a cool place in the summer months. to keep warm in the winter it needs be closed. warm air in the house and cold below the floor, moisture transfer across the floor envelope just as in an exterior wall.
crawl spaces are a pain to deal with.
good luck with this.
some tricks i have used in the past under porches etc: use light colored gravel over white tarp- like vapor barrier on the soil. white wash. low energy lighting. this helped discourage the mold/ fungus, they like it dark.

[hubertwhitlock]

You should not lay concrete blocks on their side you really reduce their strength dramatically when you do that

[juanmercado]

How much would it cost to redo the whole house?

[basspig]

That looks like my roof joists looked after 40 Years of roof leaks.

[familylifescienceeducation]

Excellent work. I wish I had these skills.

[johnjames]

Where do you live? That foundation would never pass any type of inspection if you want to spell or even for insurance.

[ShaunBurke-rf]

I got this same problem and don't know how to go about fixing it .and I can't afford to hire someone.but that's really the only thing wrong with this place.but when I do it I'm going to rip up the floor and do it like that bc I dont like crawling under my house .