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How To Replace Rotten Joists And Flooring - Save £100's and £1000's By DIY!!!
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- Опубликовано: 14 ноя 2014
- Short videos and slideshow documenting our successful attempt at replacing rotten , water damaged joists and flooring .This project took one weekend to complete.
For the joists we used @ 5 x C16 pressure treated timbers 45x95x2400MM.
We are amateurs and not professionals. Anyone who is able bodied with reasonable DIY skills and a few basic tools can do this if they're prepared to get stuck in and have a go.
Thank you! I found something similar to what you use in USA. It call green wood preservative. You have given me an idea to protect the wood better.
I really like your idea of waterproofing the plywood to prevent future problems. Much cheaper than pressure treated ply.
Good solid work, that ain't going anywhere!
Yeah that's a little overkill and not necessary
Get that kid a sawzall!
Really ya. lol.
Because he was at the sea and sawz all--hahah
Great video. I have some issues with my floor that I need help with
YOUR VIDEO JUST MADE MY LIVE HAPPY
That is a excellent job any joiner would be proud to put their name too. looks insanely strong.
what is it you do for a living
Thank you for your kind words of support my friend. We were very proud of this job and can vouch for how strong and durable it is. I'm not a joiner - I'm actually a pen pusher and work in an office in public service. DIY is a hobby of mine. Hope your day is a great one. Best wishes, Des
Reminds me of the days when i helped grandpa around the house using man power...sometimes young men, especially now a days can use a little hands on training...its good for building strong character and discipline...👍
Agree entirely my friend. Absolutely nothing wrong with some good old fashioned values. Have a great day where you are. ATB, Des
Thank you. Is it a dirt foundation or cement under suspended floorboards? I am restoring ground floor house over 100 years. Dirt foundation. Maybe pipes? All recommendations very welcome. There's a river across street and a lot of rising damp. Many many thanks.
I have an Edwardian house where the dining and living rooms have floors that aren't level. Next door house had rotten ends on the floor joists, so it's not inconceivable this house has the same problem.
I was looking for ideas before I disrupt the dining room (smaller room) to check out why. So thanks for doing this, it's reassuring because I'm a reasonably competent DIYer and see nothing that 'frightens' me.
Appreciate your forethought. Good karma that :o)
Hello my friend, thanks for your message. I suppose the first thing is whether next door's house is attached to yours and where the problem joists were? If they were on an adjacent / shared wall which must therefore be internal then I suspect that you may have a similar problem unless theirs is caused by a leaking pipe, for example, as opposed to rising damp. However, they could have inadequate ventilation under the floor which means that theirs could be rotten but not yours for example if yours is well ventilated. If they had rotten joist ends on an external wall the cause is normally quite easy to identify. Is it, for example, in a kitchen below units where a sink may have leaked? Is there adequate ventilation if it is a suspended wooden floor? There may be a vent which could be blocked or obstructed or none at all. Perhaps there isn't enough ventilation? Has the external surface outside been raised so when it rains water gets through the vent (if there is one?). Is there a lot of decaying wood or rubbish under the floor which needs clearing out ( a recent problem in another house I own - the old flooring had simply been chucked underneath the new one and left to rot on the foundations of the house) and cause rot in other timbers. Are the floorboards above also damp/rotting. Is there a leaking radiator nearby? Do you have a good damp proof course in the property? Any signs of green moss on the outside wall or dripping pipes? All things I have personally come across and dealt with. Be reassured, I am not an expert in any particular trade but I haven't come across a problem yet that I can't solve myself simply by trying and having a go. 12 years ago I had little if any decent DIY skills. Good luck, Des
Thanks for the thoughts. Both suspended wooden floors that are crowned i.e. higher in the middle of the room and lower around the edges. The next door house is not attached, we're about 10 feet apart.
I think these sort of videos actually just boost one's confidence. I want to extend my lower ring main too whilst the floorboards are up.
So thank you again Des.
My pleasure Brian. Wooden floors that are 'crowned' in the middle are not uncommon at all and may mean nothing other than the fact that someone has not been as diligent as they perhaps should have been when fitting the floor. I've also come across this myself and packed out the joists when fitting a new wooden floor in an Edwardian terraced property to get them level. No big deal - just need to put the time in. Good idea doing the ring main whilst the flooring is up. You're absolutely right about the confidence issue. Most of the jobs which I've done have been with the help of my partner and my teenage son and believe me they had zero knowledge. My son has probably acquired more knowledge than most adults twice his age simply through helping me (that's how he earns his pocket money - I make him earn it) and learning at the same time. If I encounter a problem I'm not quite sure how to deal with I always take my time to think it through and I always chat about it with them to see if they have any ideas. Sometimes the best ideas are indeed the simplest ones and it's amazing how many good ideas come from an untrained mind which isn't constrained by technicalities. We always come up with a solution between us and Y-T will invariably come to the rescue if we're stuck. I wish you the best of luck Sir. Kind regards, Des
why would you cut all the load bearing joists at the same time? It seems to me that's begging for trouble. I'd cut and repair one (1) rotted joist at a time to insure the structural integrity of the floor remains firm during repairs.
Hi there. That's actually a very good point and if I were to do a similar job again I would probably do what you suggest. That being said, it caused no problems whatsoever and no harm was done. Thanks for your valuable feedback. ATB, Des
21st Century Caveman if you come across a similar problem again I recommend not doing this type of repair. You might get away with it for 1 joist but even then I wouldn't. It is much easier and less work to just replace the whole joist. How is this repair holding up? I would imagine by now it's starting to fail. Is your floor sagging yet? It will be soon I'm sure. Also I would just like to point out that the bubble most certainly was not "bang in the middle". You were high on the right hand side
Fred Higgenbottom yeah I would at least shore up the outside jack it up and replace the sill
What do you expect a caveman to do hire a neanderthal to fix it right.?
I suppose that is one way to do it. And if this is your house, and you will live here, spend as much time and money as you want.... Over Engineer to the max! But every sistering job I have done and seen only uses 1 scab board and does not replace the cut out part of the joist. Might need to consider off-setting the bolts, one up, one down.
Hello there and thanks for taking the time to watch and comment. Appreciated. Most jobs like this, as you say, will only use one scab board but for the small extra price and time I would prefer to use 2. Although I am not a professional builder I can't see the point in leaving in rotten joist timber as it will surely only speed the decay of adjacent timber? As far as I'm concerned, cut out the rotten stuff and replace with good timber - common sense as far as I'm concerned. Take care, Des
Im glad you used ply for the floor
ok. thanks. iv been watching these styles of videos as i have some badly damaged joists in my house that is over 100 year old.
+TheCrusader2009 No problem my friend. Any time. Good luck with your project.
I'm at the point where I have added the sister joists and now need to damp proof the end of the joists. How important is it that I block the joists and how do I it? Lastly, I'm not familiar with nogging? How important is that?
great vid, thanks so much (guess you didn't have a nice reciprocating saw then? Poor dude had to do it by hand ;) )
Lol. Hello there my friend. Yep, you guessed it - no reciprocating saw or any other fancy gadgets. Rudimentary tools and maximum profit all the way! Have a great w/end where you are. Best wishes to you and yours. Des
One word of advice, Sawzall!
Hi there, in theory I doing this on the first floor on a 3 bed semi the same job apart from ceiling boards being underneath as mine are not the best on the ends and also sagging I believe due to being a 70s build! Very hard to find someone to look at joice work for some reason here in essex
Cheers
Carl
Hi Mate,
I plan to lift my floorboards this week. Wish me luck..........:)
Good luck! Let's hope you don't need it mate. ATB, Des
could you not get a smaller saw
This is a pre-You Tube video / slide show documenting our successful attempt at replacing rotten joists and flooring .This project took one weekend to complete.
For the joists we used @ 5 x C16 pressure treated timbers 45x95x2400MM. We are amateurs and not professionals. Any able bodied person with reasonable DIY skills and a few basic tools can do this if they're prepared to get stuck in and have a go.
Very good job.
Currently have the same issue with the floor joists in a house I’ve just bought. They’ve rotted where they sit in the wall (it’s a stone build) we hope to take this approach also. But the trouble we’re finding is the joists are varied sizing. Mainly 6 by 2, but they do vary. Would that be an issue when sandwiching? In my head I feel it may be.
Thank you Sir. This is such a common issue. Your options are to either buy one size replacement timber which will do all of them or try and match them up like for like and buy different sizes. The choice is yours but it shouldn't be a major issue tbh The problem you may find is that the holes / recesses you need to fit them may be of different sizes. Consequently you may need to either pack them out or make them bigger. If me and my lad can sort out an issue like this I'm sure most people can. I think you'll be OK my friend. Hope this helps, Des
@@21stcenturycaveman33
Thanks for your reply mate, much appreciated.
I’m torn between replacing the full length of floor joist (trying to avoid with prices of timber) & this method.
I’m reading mixed replies on the sistering method, and with me having to do it for quite literally 20+ floor joists, I may have to bite the bullet & replace them.
How are these joists holding up for you? Seems a brilliant method for a small repair like you have for a few joists.
hi
how much are the wood to make joists, and rough cost to do this
Nice Job, This Is What I Need To Do In My Kichen Floor
+KrisRaps Hello there my friend. I hope it gave you some pointers. Worked really well for me and end result was bullet proof. Sorry it wasn't the best video but it was one of my very first ones and not originally intended for Y-T. Take care.
21centurycaveman Yes, Some things are good from the video, i will definetly use the knowledge that i now have from Your video, Thanks a lot
that my friend is what we would call an overkill and extra work and time. but he got the job done and that part of the floor should be the last part standing good job man.
Good solid job! Nice trick using cable ties as handles too
Thanks! 👍 Des
Thinking of doing this and found your video during my research! Do I need to contact building control or get planning permission from the council to carry out the work myself as a DIY project.
Hi there. I'm in the UK and none of the above required. Des
@@21stcenturycaveman33 thank you - and you’re right. I checked with my council and looks like we’re good to go. Just need the courage to start! Any tips? Or things you’d do differently second time round?
Hiya buddy. Would do it all the same again. Unfortunately, these clips were taken before my YT channel so I left a lot out and had to replace with photos instead. If I had to do it again tomorrow - no change whatsoever. Hope that reassures you. Des
Hi, thanks for this video it's really helpful. I'm looking at a similar issue with my Victorian flat, the floorboards look sound but the floor bounces when walked upon, plus the flat is raised above ground level. Did you have the same problem, e.g. bouncy floors?
Yes, absolutely. The floors did bounce, particularly near the walls. This typically signifies where the ends of the joists have rotted and could be a good indicator as to what's happened. However, also note that in older Victorian properties, many joists were thinner than they are today and obviously not so strong. Also, check out the floors where they bounce - have they been secured properly? Also, is yours a ground floor flat or higher? Let me know. ATB, Des
Nooice!
I've just found out my floor is mullered. It's sunk in the corner where the washing machine is and all the cupboards and the washer etc have sunk several inches. BUT living as I do in Whitby North Yorkshire actually getting someone to fix it during a pandemic is nion impossible. I'm a widowed single mum and at the end of my tether. I'm petrified the whol thing is going to collapse beneath! 😭
Good job buddy
Thanks very much. Take care, Des
thanks blubs
You're welcome Izzy
Dto soak wood in preservative, can i just use treated lumber? Then on the sub floor, do you have any paint on preservative in stead of the soaking type? Can i just put one coat of exterior primer, and one coat of exterior paint to add some protection on those plywood? Please advise me, i am working on a rotten floor joinst
Hello there and thanks for watching. The timber I used for the sub-floor had already been treated and pressurized by the manufacturer. However, I decided to use further preservative as an extra safeguard to minimize risk of rot for as long as possible. It is important particularly on the cut ends. I also treated the plywood flooring with the same stuff. I would not use any paint on the subfloor/joists or on the underside of the plywood and I certainly would not use it as an alternative to wood preserver. Whilst primer and paint may offer a degree of protection it is designed for a different purpose in mind. Preservers are designed to protect the wood against different types of rot and insect/beetle/larvae infestation and have been formulated specifically for this purpose. However, as far as I know, timber treated with wood preserver can normally be painted, stained or varnished afterwards although if it will not be seen then there is no point. I hope this helps my friend. Good luck and best wishes, Des
can you give me the name of that preservative for floor joist please? or the link where i can purchase it. Thanks
Here we go:
www.wickes.co.uk/Ronseal-Multi-purpose-Universal-Wood-Treatment-5L/p/147142
Not sure where you are but I'm based in the UK. At least it will give you a good idea as to what sort of preserver you should be looking for. Kind regards, Des
you dont have to show the entire cutting of the floor joist on a 4/minute video you know
I know - sorry about that. These pics and short vid was taken prior to my Y-T channel but the result was so good I thought I'd cobble together what I had to try and inspire others to have a go themselves. Thanks for your patience and understanding. Best wishes, Des
Hi mate did you get the 18mm structural plywood from wickes? If so how was the quality?
Hi there buddy. Yes I did. It's fair to say that this product does get mixed reviews in terms of its quality and possible defects. However, the sheets I purchased were absolutely fine and I must say I've been very happy with them with absolutely no problems at all. Thoughts .... it's very light and did have me worrying initially whether or not it was heavy duty enough. However, the specs which I looked at and the claims on Wickes' website at that time suggested this was one of the product's major benefits - e.g. the weight/strength ratio.
Not being a professional joiner or wood worker I accepted these at face value. No regrets so far. Secondly, if there is any chance of getting damp or water exposure you need to apply a number of coats of appropriate preservative and you should be absolutely fine. These sheets do NOT come pre-treated. Thirdly, it is imperative that you choose your sheets yourself from the store. If you order on-line there's a very good chance that you may end up with damaged or defective boards. Wickes delivery service is notorious for dropping off crap and charging you for the pleasure. I simply strapped 3/4 sheets to the top of my car and made my way home via backroads to avoid the Old Bill. Plse note that these are a budget priced alternative to Marine ply sheets (provided you treat them) which are very expensive. However, they are nowhere near as good. Proper marine ply is the real deal. Hope this helps my friend,. Best wishes, Des
I was just wondering how you could explain damp plywood flooring on a top floor flat? I'm wanting to put laminate flooring down but the plywood that was under the carpet is damp on the top side ( floorboards seem to be fine ). Should I ignore this, buy new plywood or is there some issue I need to deal with here? I just figured that plywood should not be under carpets and this made them damp
Hmm. That's an interesting one for sure and it definitely warrants more investigation. I certainly wouldn't ignore it. Firstly, plywood is typically used to level out uneven floors before installing coverings, such as, carpets, vinyl, etc, so that is not uncommon. I think you need to discount obvious things first like spills, leaks ( any nearby radiators? sinks & taps, under floor pipes - note that water travels). Other than the obvious ones, I wonder whether there may be an issue with condensation (warm air rising from lower floors and condensing due to it being cooler in your top floor flat? Hopefully this may give you a few ideas my friend. If you find out let me know. Would be interested to hear. Take care, Des
Hi caveman to be honest there might have been spillage from my washing machine but doesn't explain why whole floor seems damp. The thing is it was damp on the top side just under the carpet. So im assuming that my flat is usually warmer than the one below. You know when you take a can out of the fridge and condensation happens on the outside of the can ( where warm air meets something cold ). So im thinking that the carpet provided an insulating layer that caused the temperature difference causing condensation. The floor boards underneath are not damp so I think i'll just replace the plywood and continue. Also is it ok to put the laminate flooring over the top of existing linoleum in the kitchen/bathroom etc? many thanks
Hello my friend. Condensation (and previous leaks?) certainly appear to be a prime suspect based on common sense and logic. The carpet probably did provide an insulating layer and I think you're probably right. Although I am not an expert in laying laminate floors I suspect that it would NOT be appropriate to lay laminate flooring on vinyl. As I understand it you are supposed to put down an appropriate damp proof membrane and ALSO an appropriate underlay (depending upon whether you intend laying on a wooden or concrete floor, the environment of the room and how flat, etc). I would suggest you check Y-T and obtain some further advice before attempting this project. That's what I would do! Good luck my friend, Des
good job on your part. bricks holding foundation look questionable.
I need mine doing
That looks sturdy as f***
It is as sturdy as f*** lol
@@21stcenturycaveman33 good job fella 👍
Was the floor joists treated or untreated
Hi there. The timber for the joists was treated but after installation we soaked them thoroughly with wood preserver to further protect them from damp, rot and fungal attack. ATB, Des
@@21stcenturycaveman33 I was concerned with the wood that was being cut out was it originally treated wood and how did it get damaged if it was
Water damaged. No idea whether original joists were treated. They were put in @70-80yrs ago. I wasn't around then!
@@21stcenturycaveman33 Thanks I'm just trying to figure out if treated wood is actually rotten after 30 or 40 years
Great job! Im looking at buying a home with this issue, but it also has caused some sagging in the flooring. I'd assume to replace the rotted wood first than go and jack it up slowly and add supports??
+james hawkins Hello my friend. Thanks for watching one of my first ever vid's which was just a few photos and a bit of video thrown together. Lol. You're right. Replace rotted wood first and jack up rest of floor to get correct level. Use bits of slate or similar to pack out joists in wall. Don't forget to treat all new timbers and wrap joist ends to protect from moisture. When nice and level, add noggins to strengthen. Me, my partner and 14yr old lad repaired this floor for peanuts. When completed you could park a car on it. Just wish I'd have taken more video footage to help others. Take care my friend.
21centurycaveman Thank you for the reply. It doesn't seem bad all in all, just takes a lot of time.
I’d be scared of snakes under that house!
The only snakes over here are the ones with 2 legs who sell insurance, second hand cars and double glazing ........
I want to larn how to build houses where do I go?
DanusMax Hi there, thanks for watching. Best place is college I imagine! Alternatively, you could always continue watching Y-T and practicing your skills when you get the chance and build up your skill set. Another option may be to get a job working with a reputable builder (perhaps as a labourer) check out the different trades and choose one you like so you've got a starting point and go from there. Not sure how helpful that is my friend but I'm not a builder myself. Take care buddy.
21centurycaveman which university we talking about here?? I live in the U.S.A where they want you to pay hand and foot for a house instead of building your own.. what is the degree called? none of my colleges near by offer such things (TEXAS).
I'll probably watch the videos and start with small projects ... maybe a dog house lol..
DanusMax Sorry my friend but I live in the UK not the USA. Good idea to start with smaller projects first though - that's what I did and I can turn my hand to pretty much anything if I try. Just ned to build your confidence up. Take care.
DanusMax go pack studs for a framing company, if your any good at that without the help of booze or drugs, youll become a capenter
Stihl Magnum
Ok..I don't smoke and drink nor do drugs... i'm planning to live to 100 and learn as much stuff in that time
Nice job but get a good recip saw
Hiya buddy. Thank you. Have since bought one my friend. Best wishes, Des
Using an old-fashioned handsaw to cut through floor joists?????
Well spotted Sir! Funnily enough, I spotted someone writing with a pencil the other day. Who'd of thought it in this technological age, eh?
Haha buy a $50 Reciprocating saw!
Lol. May consider treating my lad to one when he can cut timber square and blunt more than a dozen teeth on the blade! Have a great day where you are my friend.
Haha goodluck! I'm sure he has a good mentor =) Best wishes.
What you guys didn't have a circular saw poor kid
Guess they never heard of a reciprocating saw.
Whats it got to do with you people have their own ways of doing things simple they not gonna go buy a £50 saw when they can buy a £5 saw that does the same job
i dont understand? you have attatched the new joist to a stub of the old joist stuck in th wall. surley that needs removing
+TheCrusader2009 Hello my friend. Sorry if it's not clear. The joists with the rotten stubs were cut back to good wood. Rotten stubs then removed from wall and replaced with new stubs. New stubs butted end to end with good wood on old joists and both sandwiched between good lengths of new joist using coach bolts. Hope that helps. Get back to me if still unclear. Take care
@@21stcenturycaveman33 I'm in a similar situation and just finding your video now and had the same question as the above person. So you were able to slide the very end of the joist out of the brick wall? Was this difficult or did it slide right out? I'm concerned about damaging the 100 year old brick if I try the same.
Hello there Brian. . I marked the rotten part of the joist and then marked about another 2 ft back into the good wood. I cut the joist here. This enabled me to remove the rotten part of the joist which was inserted into the wall. Dispose of this. Cut an appropriate length of new joist. One end to go in wall to replace the rotten bit now removed, the other end butted end to end with the original joist (which has been cut back to good wood). This is then sandwiched in between 2 further pieces of new joists (one each side) and bolted accordingly. Hope that makes sense my friend. Best wishes, Des
Is that the biggest saw you had? Poor lad.
To bad you didn't show the work getting done just pic not helpful
Please see comments below. Thanks
Ever heard of a sawzall. Smh
Bought one about a year ago mate. ATB, Des
@@21stcenturycaveman33 hahaha. Still pretty cool to see that handsaw used. Amazing that’s all they used back in the day before power tools. Good to teach the kids the basic hand tools first? Godbless thank you for the video
Didn't actually show anything!
First thing you should do is buy a electric saw that's just foolish making someone use hand saw just because your cheap
@Mario Garcia, you're just a weak lazy fuck. Quit being a pussy
First thing you should do is stop being a prick
maybe he likes the exercise lol
Why do not put cement ? Than you do not need rotten wood and you never need to fixing again !its so simple
Sorry. Please explain. I do not understand. Thank you Sir.
Looking at the kid with a handsaw and I'm just thinking.... is he being punished? Child labor!
Criminal isn't it? Don't tell the authorities whatever you do!
Should of used hand saw to cut plywood lazy
Im no builder but this is crap,i would just have replaced wall plates,with anchor bolts new joist hangers then new joists,this is just cheap and nasty
Oh, OK. So you don't like it then? Lol. Hope you're having a great day where you are. Best wishes, Des
Shite
i gave you a thumb down .. lol