Conquering Flooding: How I Saved My Property with Foundation Tanking & French Drains
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- Опубликовано: 1 ноя 2023
- Discover how I tackled severe flooding on my property with effective foundation tanking and French drain installation in this comprehensive video. As heavy rains and storms threatened my valley-based property, water retention under the building became a significant issue. I detail the process of exposing and tanking the trench foundations, installing French drains around the entire structure, and the remarkable results-showing a previously waterlogged 4-inch space beneath the block and beam floor now completely dry. With a two-year success story, witness the power of these techniques, even without gutter installation. Explore the inspection of my French drains, utilizing clean-out points, a rare addition in the UK. Join me as I demonstrate how these methods transformed my property, providing lasting solutions against flooding challenges.
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About me:
I'm Aiden and I'm documenting what was supposed to be my barn conversion, which has now ended up being a new build. I don't have a trade, I just have a go and I'll be doing lots of work myself. This is the boring bit in grand designs that you don't get to see. Subscribe and follow along to find out how our future home turns out.
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contact email: aiden@acer-view.com 
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You did a great job Aiden. I would put the pipe under the floor.
Thanks mate 😁
I would go under the floor with the pipework. Nice design on the drains
A service hatch accessible from the outside, and internal access opening connecting the crawlspaces, would be a good idea in the long run. Allowing you to service anything under the floor without going through the floor (once the post and beam is grouted, insulation installed, and finished flooring in.)
Off-topic, but it terms of efficiency:
- I've read that foil membrane (low emissivity, vapour closed) helps to reduce radiative coupling between the beams and the ground to reduce heat loss - it's basically a thermal mirror. It's good practice to put a membrane down to reduce the moisture coming from the ground anyway.
-There are "smart" air bricks which you can install that only allow ventilation when the air is dry enough to help dry the crawlspace. I've also seen a soil gas pipe with a motorized damper do the same (with little plastic flaps over the inside of the air bricks to act as a non-return valve). The damper is opened if the absolute humidity of the outside air is low enough AND the RH of the crawlspace is above 50/60%. They use this to control radon build up too.
That's interesting about efficiency. A service hatch would be a good idea if it was thought of in the first place 😩
You are a very patient and calm man Aiden......... I think you have been tested to the extreme ! Thanks for your videos.
You must be so satisfied that all of your hard work installing the drains and tanking paid off. Just shows that if you’re gonna do something , take the time to do it properly and you’ll reap the rewards
👌🙌
If you have enough fall under the block and beam then that's where I would put it.. good result with the ground being dry
I reckon that's the plan 👍 I'm surprised everyone has agreed on the same option
Thanks for the recap, it's good to be reminded of the early days. All that very hard work paid off thankfully!
If it didn't pay off then I'd throw in the towel 😆
If it didn't pay off then I'd throw in the towel 😆
Well done mate, you just showed everyone how it should be done proper
Cheers fella 🙌
Would definitely extend the lintel for the pipework in the underground section, not enough support on the left side If there was ground movement.
I'll have to check when I'm under there next 😅 I'm pretty sure the lintel will be too low for me to use that opening though 😣
Under the floor I reckon! How satisfying to know it was worth all the work!
Looking forward to seeing this heap of a digger !
Everyone has said under the floor too! Yet that contractor tried to convince me I should put it through the insulation 🙄
Nice work with the burrito drain. Thanks for explaining this! Very helpful. Also, Aiden, thanks for saving the toad. ♥
Any time! 😁
You've done an absolutely top notch job there! Should be proper proud
Thanks buddy 😁
As a retired plumber I’d say under the floor is fine - but you must have access to the underfloor space. Often repairing a pipe costs very little, its getting access & taking down tiled or plastered walls or digging up floors is where the real cost is. Also insurance will cover the cost of the pipe repair, but not the damage getting to it. You might also be tempted to say ‘ What could possibly go wrong with a pipe under the floor ? ‘. You just know how that’s going to turn out.
Ah, well there won't be any access under the floor 🫣 I'll have to make sure I do a good job of it
You´re getting a like and subscribe, due of you saving that toad! Great job! 💯👍🙏💖 and of course, for you sharing also..
Ah thanks ☺️
Thanks Aiden been looking forward to this vid for a while. It’s really satisfying seeing the water run through the French drain during a rain or after.
Thanks for the idea dude 👍
Thanks for doing that video - its something I’m working through at the mo - I know I know - terrible time of year to have open trenches! 😂 really helpful! And great outcome for all your hard work! I find it hard going doing things and not being 100% that its gonna work out. But if I don’t try I’ll never learn.
😩 muddy trenches are the worst
Great job there mate it’s staying nice and dry under the floor as i think someone else might have commented if you can get the fall you should definitely go under the floor and if there is any chance of it freezing then just get some lagging around it to be extra safe - but you shouldn’t have any standing water in it if the fall is right. Good luck with it mate keep up the good work 👍🏻👍🏻.
I'm not sure it would freeze as it is in the middle of the building, although I suppose a little insulation wouldn't hurt
That's very impressive, from swamp to desert 👍
It sure is!
It's looking pretty good, dude! Great job! 😃
Stay safe there with your family! 🖖😊
Thanks! 😃
Cracking mate. Great to see it all working as it should. 👍
This was the project that made me subscribe! still impressed now, is your brother still helping you when he can? Not seen him for a bit
Haha that was an old friend, he's not around anymore though
Put the pipe under the floor; that way you can always get access if needed (provided you make an inspection hatch in the floor of course :) ). Maybe put some insulation around it, not sure whether that's needed or not...
Good to see the crawlspace dry, that tanking and French drain video is what drew me to your channel in the first place!
Seems crazy but the floor isn't designed to have a hatch 🫣 I won't have any access but I trust my plumbing skills 😉
Pipe definitely under the floor great job by the way
Thanks 👍
Your Mrs is a lucky lady.
😂 she doesn't think so!
Great video. Pipework under the floor; coming from an unqualified DIYer.
Shall I start a school so everyone can have a certificate in DIY? 😁
Great job as always, but can you get around to finishing the house? Be nice to enjoy all your hard work instead of living on top of the garage! ❤️
Learnt a lot from your videos though, glad you've kept on making them 👏🏼
Haha I like living on top of the garage 😂 although I'd much rather a cabin in the woods 😁
Wow thats a problem I wouldn't want to have! looks like a nightmare trying to work through fixing it. Must be so satisfying seeing it dry now though
It's nice knowing I won't ever need to worry about it, that's for sure!
You could insulated trench block work after tanking the wall with 50mm xps foam board.
Probably no point as it's ventilated under there, although foam board would actually protect the tanking membrane 🤔
You would be better going with the 115mm pipe under the slab, this will prevent pipe clogging up over time
We've got a water sewage treatment plant so there won't be any fat going down the drains 🫣
why 50mmm pipe under, why not full size 110mm ?
I don't really need 110 as it'll only be for a sink. A 3m run in 50mm doesn't need venting so that's why I was planning on going down that route, plus it'll be easier for me to get into the other pipe...in theory 😬
hmm.. not a kitchen sink with fatty muck clogging it i hope, or a bathroom sink with hair and soap, easier to clean out if bigger. oh and ps think about installing pipes for disabled shower and loos downstairs which may be needed in a few decades
@@THE-AIDEN-PROJECT
It’s a shame every new build has all the water in especially this time of year and would not have done it properly like yourself 😢
That's cause I've got the time to do it properly and I don't have to pay myself a wage 😆
110 pipe all the way pal, through the wall where your lintel is already put a y on the stub that’s the easiest and best.
In an ideal world I'd do that but I'm pretty sure the pipe the other side is above the lintel 🤦
Do your island drain run in 110 under the floor into a vertical stub stack within the island with a reducer cap to install the small bore pipework, a lot less chance of blocking and if it does you can remove the reducer and clear that what
That's sounds like a good plan although I think a 110 will be tight 😬 I'll have to lift the other side and check that pipe
50 mm pipe definitely under the floor; otherwise, you risk minimising your insulation quality.
Under the floor for max thermal efficiency. If you run it in the insulation you’ll get a much bigger thermal bridge, rather than a small one just where the pipe goes through the floor!
Good point 🙌
And a bigger pipe is less likely to block, when I was a younger man and built footings those internal walls would have had some holes for cross ventilation
@@peterthebricky ahaa I didn't even clock that, that run is the only one that doesn't have any for some reason 🙈 maybe the brickies thought the lintel opening was enough but that plan went out the window when the main contractor decided to not put the pipe in and then later blocked it with shingle and lean mix 🤦
Is there any risk of frost under the building? If so, then I'd say in the floor. If no, then under should be fine. Just my 2p. I am in no qualified as a builder. Take care & stay safe.
Humm I'm not sure about the frost thing 🤔 although there won't be any standing water so that probably won't matter. Maybe I can stick some insulation round it though 🤷
Defo under the Floor dude
I would defo put your 50mm pipe under the floor mate, you’ll get a much better fall on it
True that, otherwise I'll be faffing cutting insulation 😬
@@THE-AIDEN-PROJECT yeah did that mate ! Cutting that stuff isn’t a fun job !
@@LTWCarpentry I will need to cut it for the water pipes to the island though 😫 I'll have to see if I can get some kind of hot knife from China maybe 😆
I’d prefer to run the pipe under the floor.
That seems to be the consensus 👌
Yes it should have been put it in. Usual builder bullshit
Yeah, laziness 🙈
...the cheapest. 😉
Haha every penny counts 😅