Man Builds a $5000 Underground Bunker in His Backyard | Full Step-by-Step Guide by @tehnolexa

Comments · 1.4K

• TE

  @TechFreezeOfficial · 1 year ago · pinned

  Discover the top projects and builds from TechFreeze! <br><a href="https://www.youtube.com/playlist?list=PLSp_0yWZ8A9OIndOPh2MBhnS1IaTsMvY_">https://www.youtube.com/playlist?list=PLSp_0yWZ8A9OIndOPh2MBhnS1IaTsMvY_</a>

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• MR

  @MrTandDrP · 2 years ago

  As someone who builds nuclear shelters for families, the use of asbestos and the flimsy mesh used would be a no-no, plus you want a escape exit or its just a tomb. It also needs to be about twice the size to be able to live in it for 14+ days for fallout. So sink, toilet and macerator to pump the waste up and out, addition of shower is a luxury. Water storage and power storage with deployable fold out solar panels to run intake and extraction fan with carbon filters, run lighting and cook with, add some beds and books games etc and you&apos;re done. BUT building a bunker yourself using repurposed materials is hard and I&apos;d give this man 10/10 for effort and 5/10 score on his bunker.

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• NU

  @NUCLEARBOMB55 · 2 years ago

  I like that, when you see the guy working night and day on a massive project. &nbsp;Kudos and well done

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• AD

  @adrianuk8102 · 1 year ago

  Can’t believe he was cutting asbestos with a grinder 😂

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• MO

  @mostafa_abbasi · 1 year ago

  funny you wear a respirator when you grinded the concrete but was totally fine with cutting your asbestos boards without one 😂

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• AN

  @andymanaus1077 · 1 year ago

  I&apos;ve often considered building an underground bunker and studied a lot of builds and techniques. &nbsp;I have also built many sheds, garages, tiny houses and retaining walls. &nbsp;The problem with bunker builds such as this is that one mistake will ruin the entire build. &nbsp;It is a shame to see someone working so hard on a build only to omit a critical factor that jeopardises the whole thing.<br><br>The overarching problem with this build is drainage. &nbsp;It relies entirely on membranes to keep the water out with no way to reduce the water pressure against the walls and floor. &nbsp;The problem is rarely water going down into the bunker. &nbsp;It&apos;s water rising up from underneath.<br><br>In building any below-ground level structure -- even a retaining wall -- two questions have to be answered: &nbsp;1. How do I keep the water out? and 2. What do I do with the water that gets in? &nbsp;In most cases the failure is caused by not addressing the second question.<br><br>Underground water pressure can be extraordinarily high. &nbsp;It can even pop empty concrete pools out of the ground. &nbsp;Pool builders have to install one-way valves at the bottom their pools to stop this from happening! &nbsp;One single weakness in the membranes of this bunker will result in the pressurised groundwater entering the structure. &nbsp;<br><br>This bunker has numerous weaknesses where water can enter. &nbsp;There is no apparent way to collect and remove the water before it gets into the living area. &nbsp;The floor and walls are backfilled with dirt with no drainage layer at all, meaning that water will constantly push in against the walls and up under the floor. &nbsp;It will find any crack or weakness in the membranes and force its way inside. &nbsp;Even worse, tree roots can grow all the way up to the walls without encountering any barrier and the lack of a drainage layer means they cannot even inject a herbicide to kill roots that find their way through. &nbsp;Tree roots easily break concrete over time.<br><br> Over my life, I have seen and even lived in many structures that have had major problems with drainage issues. &nbsp;It is the most common issue with man-made structures. &nbsp;Even professional builds have drainage problems due to improper drainage, including my father&apos;s house which was built in 1999. &nbsp;My father failed to recognise the drainage issues before he signed off on the build and the council didn&apos;t notice the problems either. &nbsp;He has dealt with flooding issues ever since.<br><br>How would this fellow fix the problem now? &nbsp;Well, he would have to excavate down the entire length of the walls and an extra foot past that, then install 200um plastic against the concrete walls, a riser pipe and 30cm of drainage gravel back up to ground level. &nbsp;A huge job but I am afraid it is the only way to fix this problem.<br><br>YouTube has dozens of &quot;failed bunker fills with water&quot; videos. &nbsp;Anyone who wants to build a bunker or cellar should take careful note of why other builds caused problems and talk to a professional engineer before starting.

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• BI

  @billgibbs7793 · 2 years ago

  Awesome job on all the hard work man - screw the haters here - 90% of them coudn&apos;t even pick up an shovel.

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• ST

  @stevejessemey8428 · 2 years ago

  Watching a couple working together in perfect harmony, pleases me 😊. Great job 👏👍👏👍

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• SE

  @sebastienfoulc8600 · 2 years ago

  The title of the video is wrong. It’s not a bunker. It’s an underground food storage or a wine cellar or a storm shelter to be safe for a few hours while the hurricane passes, eventually.

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• AC

  @Acton-u2x · 2 years ago

  This was a one man build. Not a team of contractors, friends or corporate company.<br>This like building a underground layer dungen when its just one man. AMazing job

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• GR

  @GreenAgricultureTechnology · 1 year ago

  This is the most productive thing I&apos;ve seen someone do with their backyard!

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• PE

  @peterlandbo2726 · 1 year ago

  Totally worth it. Now he can choose between dying underground or above ground

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