Normally, one would lay the blocks around the hollow metal frame using masonry anchors... Otherwise, trimming a 1/4" off the bottom of an HMF is not a big deal; typically there is a 3/4" undercut on the door, so you still got 1/2" clearance. Weren't planning on shag carpet down there, were you? Personally, if i was doing that with new construction, this would have all been a monolithic pour.
Hello Mr.Rod, I'm 31 years refugee living in Roma Italy. I'm a bricklayer with little experience from Uganda and i would like to upgrade my skills and get more experience from people like you..I want to be your student sir..Kind regards
10" W X 8" H X 16" L bonding blocks with vertical and horizontal rebar on every row with a 10 inch thick concrete roof is what you want. It will weigh roughly 32,000 pounds for a 8x8 shelter, uses about 6.25 cy of concrete.
Don’t have to use steel to reinforce, just make walls thicker about 30-40” and fully filled blocks within concrete. 30-40” thick solid wall will hold just fine without any reinforcement.
Tornados have been clocked at 300mph, and a piece of wood will blast that thing apart in a phenomenon known as "missiles". Yes-a 2x4 will make concrete explode in tornadic winds so PLEASE hyper-reenforce the piss out of that thing. Sheet metal outside, styrofoam inside or vice versa. Remember tornados blast train engions into the air-shelters have to be anchored too-weight isn't enough. Also think about rounding it a bit on the exterior-flat sh*t catches wind, and that's why windshields are rounded off. I'd put down more concrete filled blocks along the bottom interior. Besides-bench seats! 👍🏻Tornadic winds are elliptical with the front slamming into the ground (they can dig nearly two feet into Earth) and hundreds of mph, at which point it swirls around and up. At the back, it could be only drifting along at 20mp before slamming back into the ground again. Tornados don't actually suck-that's a myth. They really blow, man. Lol
The rebar is drilled/anchored to the slab which anchors the entire structure to slab when you pour the cells with cement. I have proof reinforced concrete masonry walls can stop multiple 5.56 .300 7.62 rounds easily. More specifically 8 rounds each no penetration. Cracking yes after 24 rounds but no penetration. I’m not saying it will hold up to a train thrown at 300 mph or a giant tree thrown like a football directly at face of wall but branches will explode on impact, depends on mass of object.
@@Surtac100 the space in between the blocks aren't called cells, they are called " webbing or core ". I know that it can be called cell, but I've never heard anyone call it that, masons use the term webbing, which is the term I was taught when I was trained. Another thing, in tornadoes, it's not only sticks and tree branches, there's all kinds of different materials flying around inside a tornado, like rocks, sand/dirt, trees, 2×4's, pipes, cars and trucks, nails, wrenches, saw blades, hammers, screwdrivers, sockets, broken glass, chunks of concrete and asphalt! Even asphalt can be ripped up out of the ground from the roads, cattle and horses, even a cow flying through the air at 200 to 300 mph winds can do some damage! There could even be some dildos or pocket pussies flying around in a tornado! Lmfao😁😃😅😂👍 I hope you know what you are doing if you built your own Shelter! I sure hope you used wire on every third course, but for a tornado shelter, then I would have used wire on every single course, or at least every other course! I'm a certified Mason, I was certified back in 1994, so if you have any questions, then feel free to ask.
Bullets go 3 times faster than any tornado and this wall stopped a lot of big bullets. IMO it’s mass of object that does most damage but all I know for sure are the tests I did with different caliber bullets
@@Surtac100 Lmfao, you sir are an idiot! 😂👍 A bullet doesn't have anywhere near the destructive force an F4 or F5, not even close! You take the weight behind that of a 2 × 4 × 8 traveling at 300 mph, then it's destructive power is going to be much greater than that of a bullet. Trust me, I know what I'm talking about, I'm a certified Mason.....I wouldn't trust anything less than a 12" block filled with concrete, then I'd have parging wire on the outside with about 5 coats on it, then I'd spray about 5 coats of Rhino liner over top that, then I'd feel safe! What I would have done, I would have poured a solid concrete pour about 12" - 18" inches of ultra high strength " C-40 " concrete mix, then sprayed the outside of that with 5 coats of Rhino liner, nothing will get through that!
I have a problem with this design. I'm not sure that epoxy would secure that structure during a direct hit from a F5. But my main concern is the lack of a secondary exit door. If that house should collapse, the debris could block the exit. If fire should break out, that could be fatal. Just my opinion.
It looks solid until it isn't. No concrete poured in the block's just hollow space. I have seen tornados tear these block buildings to hell. I hope you never have to test it, if you do PRAY.
Way under built for safety in a class V scenario. Whole house could potentially come down on top of it for starters. No mention of grouting the undersized block. Door way should have a 90 degree turn in it. Roof should be more like a foot thick minimum. 16'' would be better. There is a lot more regarding ventillation and such. No mention of the garage slab supporting this
what does it cost to build something like this. My family and I lost our home and lived through a tornado. We are now rebuiding and I am looking at all kinds of different options for a safe room. Thanks in advance for your time
Well when the tornado destroys that heavy timber building and it comes down and crushes you inside your concrete box and or traps you inside there probably should’ve built that thing outside🥴🤷♂️
Are you fucking kidding me!!! Duh, the mortar is supposed to be wet, and them laying the blocks on top of the lintel would not make it drop down a 1/4"! Another thing, where in the hell did you find those clowns, I mean Jesus Christ, just look at the head & bed joints, there's mortar missing and they didn't even strike the joints, which makes it stronger! You should have paid me to come build it for you, I would have done it right!
@@roypatterson9910 why do ya gotta be so rude and critical man? you may be right about the safety thing, but it's still a piece of art... the best way to defend from a hurricane is actually to get in your car and just GO as far and fast as you can (without crashing cause that would defeat the purpose) .. getting outta there is better that hunkering down in something that you don't know is safe or not.. even something government approved can have it's follies
@@crazyj902-topic2 this is for a tornado, not a hurricane, you can't build a shelter for a hurricane. And with tornadoes, the worst thing you can do is get in a car. Only do that if you always know where the tornado is, if there are many possible escape routes in case some are blocked by debris or traffic and if the weather outside of the tornado is mild. Otherwise, it's incredibly dangerous to drive during a tornado.
Why wouldn't they? Many hospitals have shelters if they're in a tornado prone area. Look at the Moore ef5 that hit, the hospital was destroyed. 4 people died there. They built the new one to withstand an ef5 but a lot of hospitals were built when we didn't have the tech to make that possible.
Man, they are some slow ass workers!! I could have laid that by myself in a day! And you should have used 12 in block, I would have, it would have made it stronger once you filled in the webbing with concrete, but I'm guessing that they used mortar, huh. 8
It can and it most likely will, but I think he was going for a more budget friendly style which can actually hold up to smaller tornados. Now with this style he can always add some 1 inch thick steel plates on the sides of the concrete and also the roof can be made to be heavier than 12,000 pounds to withstand any tornado. I believe 12,000 can be blown off pretty easily by even the weakest tornado so maybe look into upgrading your roof to a 16,000 to 20,000 pounds roof made out of concrete or steel to maximize survival etc.. make sure to weld that piece to at least an anchor to the concrete ground pr add some heavy beams on the side to hold the weight etc… I know money is kind of an issue with almost any good project, but you already did yourself a good shelter might as well make it stronger.
A tornado can roll a semi and trailer like a pool ball, any gap that the wind can get in is your weakest point. Don't waste your money, get a tested, proven, approved tornado shelter. don't skimp with your families' lives.
@@rodkenly-lazyflyingk5842 What happens when the building collapses on the safe room? If the weather conditions are that bad, may be some time before anyone gets around to getting you out. Wouldn't the room be better outside in open space?
@@neill392 if the building collapses I'm the safe room... well it would be a bummer. But if it really just collapses, there's not much that actually falls on the room. The room is between trrusses, and the Roof is osb and metal roof. The safe door opens in, if anything falls against the door, it doesn't keep from opening. Our location is outside the normal tornado zone. 2 tornados in the last 110 years as I understand it. So that was my thinking.
Normally, one would lay the blocks around the hollow metal frame using masonry anchors... Otherwise, trimming a 1/4" off the bottom of an HMF is not a big deal; typically there is a 3/4" undercut on the door, so you still got 1/2" clearance. Weren't planning on shag carpet down there, were you? Personally, if i was doing that with new construction, this would have all been a monolithic pour.
I have seen concrete block buildings on a concrete slab…removed completely from the foundation from a F4 Tornado. Not so sure this is up to the task.
Looks solid, well done Mr. Rod.
Thanks for the comment!
Hello Mr.Rod, I'm 31 years refugee living in Roma Italy. I'm a bricklayer with little experience from Uganda and i would like to upgrade my skills and get more experience from people like you..I want to be your student sir..Kind regards
@@catsanddogs8534 lmfao😂👍 Yeah, me too! I think I need to be re-certified, because clearly I didn't learn from the best! 😂👍
10" W X 8" H X 16" L bonding blocks with vertical and horizontal rebar on every row with a 10 inch thick concrete roof is what you want. It will weigh roughly 32,000 pounds for a 8x8 shelter, uses about 6.25 cy of concrete.
And a base or foundation to support that much weight.
Don’t have to use steel to reinforce, just make walls thicker about 30-40” and fully filled blocks within concrete. 30-40” thick solid wall will hold just fine without any reinforcement.
Tornados have been clocked at 300mph, and a piece of wood will blast that thing apart in a phenomenon known as "missiles". Yes-a 2x4 will make concrete explode in tornadic winds so PLEASE hyper-reenforce the piss out of that thing. Sheet metal outside, styrofoam inside or vice versa. Remember tornados blast train engions into the air-shelters have to be anchored too-weight isn't enough. Also think about rounding it a bit on the exterior-flat sh*t catches wind, and that's why windshields are rounded off. I'd put down more concrete filled blocks along the bottom interior. Besides-bench seats! 👍🏻Tornadic winds are elliptical with the front slamming into the ground (they can dig nearly two feet into Earth) and hundreds of mph, at which point it swirls around and up. At the back, it could be only drifting along at 20mp before slamming back into the ground again. Tornados don't actually suck-that's a myth. They really blow, man. Lol
The rebar is drilled/anchored to the slab which anchors the entire structure to slab when you pour the cells with cement.
I have proof reinforced concrete masonry walls can stop multiple 5.56 .300 7.62 rounds easily. More specifically 8 rounds each no penetration. Cracking yes after 24 rounds but no penetration. I’m not saying it will hold up to a train thrown at 300 mph or a giant tree thrown like a football directly at face of wall but branches will explode on impact, depends on mass of object.
@@Surtac100 the space in between the blocks aren't called cells, they are called " webbing or core ". I know that it can be called cell, but I've never heard anyone call it that, masons use the term webbing, which is the term I was taught when I was trained. Another thing, in tornadoes, it's not only sticks and tree branches, there's all kinds of different materials flying around inside a tornado, like rocks, sand/dirt, trees, 2×4's, pipes, cars and trucks, nails, wrenches, saw blades, hammers, screwdrivers, sockets, broken glass, chunks of concrete and asphalt! Even asphalt can be ripped up out of the ground from the roads, cattle and horses, even a cow flying through the air at 200 to 300 mph winds can do some damage! There could even be some dildos or pocket pussies flying around in a tornado! Lmfao😁😃😅😂👍 I hope you know what you are doing if you built your own Shelter! I sure hope you used wire on every third course, but for a tornado shelter, then I would have used wire on every single course, or at least every other course! I'm a certified Mason, I was certified back in 1994, so if you have any questions, then feel free to ask.
The piece in between the cells are called webbing, the webbing is already solid part of block, the 2 big holes are called block cells.
Bullets go 3 times faster than any tornado and this wall stopped a lot of big bullets. IMO it’s mass of object that does most damage but all I know for sure are the tests I did with different caliber bullets
@@Surtac100 Lmfao, you sir are an idiot! 😂👍 A bullet doesn't have anywhere near the destructive force an F4 or F5, not even close! You take the weight behind that of a 2 × 4 × 8 traveling at 300 mph, then it's destructive power is going to be much greater than that of a bullet. Trust me, I know what I'm talking about, I'm a certified Mason.....I wouldn't trust anything less than a 12" block filled with concrete, then I'd have parging wire on the outside with about 5 coats on it, then I'd spray about 5 coats of Rhino liner over top that, then I'd feel safe! What I would have done, I would have poured a solid concrete pour about 12" - 18" inches of ultra high strength " C-40 " concrete mix, then sprayed the outside of that with 5 coats of Rhino liner, nothing will get through that!
Thank you for the video! Any update?
I have a problem with this design. I'm not sure that epoxy would secure that structure during a direct hit from a F5. But my main concern is the lack of a secondary exit door. If that house should collapse, the debris could block the exit. If fire should break out, that could be fatal. Just my opinion.
1/4" You wouldn't like my quote. Would pass this job
Did you get a good deal on the Mexican labor?
They got paid what they wanted I’m sure
I hope not they’re working for an asshole. 1/4 in off they had to do it again on Sunday. No days off when you work with a tyrant.
It looks solid until it isn't. No concrete poured in the block's just hollow space. I have seen tornados tear these block buildings to hell. I hope you never have to test it, if you do PRAY.
I hope they r filling the blocks with concrete ?
Way under built for safety in a class V scenario. Whole house could potentially come down on top of it for starters. No mention of grouting the undersized block. Door way should have a 90 degree turn in it. Roof should be more like a foot thick minimum. 16'' would be better. There is a lot more regarding ventillation and such. No mention of the garage slab supporting this
Let’s see your credentials
My impression is the project is more effective as a fallout shelter.
Better than having nothing, but woefully under engineered for a tornado room, but maybe that is all they wanted.
Built to fema standards, but thanks for the comment
@@rodkenly-lazyflyingk5842 FEMA are idiots, what do they know! Lmao
Damn three days to do that I would have done that in one day
You have to take your time when working with an asshole.
Nice Project! Oh - 2:48 Lintel Like "lynn-tel". You eat Lentils. 🍵
You're gonna need a thicker heavier roof! 12 thousand pounds isn't safe enough....
what does it cost to build something like this. My family and I lost our home and lived through a tornado. We are now rebuiding and I am looking at all kinds of different options for a safe room. Thanks in advance for your time
Underground is the way to go if you can. I'd do all this but underground. UA-cam a "diy underground shelters," I've seen some really great ideas.
I have a few questions about your ceiling. I don’t see a way to private message you.
Making progress!
Well when the tornado destroys that heavy timber building and it comes down and crushes you inside your concrete box and or traps you inside there probably should’ve built that thing outside🥴🤷♂️
You Dill weed , cut a 1/4” off the bottom of the door .
Why? Why are you saying that?
@@roypatterson9910 He's been smoking the dillweeds (thinks it's legit grass)🤣
It’s more than likely going to have a prefab steel door. You don’t just cut a quarter inch off of it. Dill weed.
Good grief... how persnickety can you get? Just trim the door 1/4"....
Trim 1/4" off a steel safe door???
Are you fucking kidding me!!! Duh, the mortar is supposed to be wet, and them laying the blocks on top of the lintel would not make it drop down a 1/4"! Another thing, where in the hell did you find those clowns, I mean Jesus Christ, just look at the head & bed joints, there's mortar missing and they didn't even strike the joints, which makes it stronger! You should have paid me to come build it for you, I would have done it right!
@@roypatterson9910 why do ya gotta be so rude and critical man? you may be right about the safety thing, but it's still a piece of art... the best way to defend from a hurricane is actually to get in your car and just GO as far and fast as you can (without crashing cause that would defeat the purpose) .. getting outta there is better that hunkering down in something that you don't know is safe or not.. even something government approved can have it's follies
@@crazyj902-topic2 this is for a tornado, not a hurricane, you can't build a shelter for a hurricane. And with tornadoes, the worst thing you can do is get in a car. Only do that if you always know where the tornado is, if there are many possible escape routes in case some are blocked by debris or traffic and if the weather outside of the tornado is mild. Otherwise, it's incredibly dangerous to drive during a tornado.
@@deathbloom27 I thought a tornado was worse though
Does anybody know why a bandit Air Force Hospital base would have a vault like this
Why wouldn't they? Many hospitals have shelters if they're in a tornado prone area. Look at the Moore ef5 that hit, the hospital was destroyed. 4 people died there. They built the new one to withstand an ef5 but a lot of hospitals were built when we didn't have the tech to make that possible.
Man, they are some slow ass workers!! I could have laid that by myself in a day! And you should have used 12 in block, I would have, it would have made it stronger once you filled in the webbing with concrete, but I'm guessing that they used mortar, huh. 8
Are you paying them? if yes, we might care
Love how he is concerned about 1/4 of inch when the fucking structure cant withstand a good fuck
You can't be serious......a tornado will blow that to bits
It can and it most likely will, but I think he was going for a more budget friendly style which can actually hold up to smaller tornados. Now with this style he can always add some 1 inch thick steel plates on the sides of the concrete and also the roof can be made to be heavier than 12,000 pounds to withstand any tornado. I believe 12,000 can be blown off pretty easily by even the weakest tornado so maybe look into upgrading your roof to a 16,000 to 20,000 pounds roof made out of concrete or steel to maximize survival etc.. make sure to weld that piece to at least an anchor to the concrete ground pr add some heavy beams on the side to hold the weight etc…
I know money is kind of an issue with almost any good project, but you already did yourself a good shelter might as well make it stronger.
A tornado can roll a semi and trailer like a pool ball, any gap that the wind can get in is your weakest point. Don't waste your money, get a tested, proven, approved tornado shelter. don't skimp with your families' lives.
Next time try filling the blocks with foam for insulation
And why didn't you make the house better with bricks?
A safe/ tornado room is much safer than s total block house
@@rodkenly-lazyflyingk5842 What happens when the building collapses on the safe room? If the weather conditions are that bad, may be some time before anyone gets around to getting you out. Wouldn't the room be better outside in open space?
@@neill392 if the building collapses I'm the safe room... well it would be a bummer. But if it really just collapses, there's not much that actually falls on the room. The room is between trrusses, and the Roof is osb and metal roof. The safe door opens in, if anything falls against the door, it doesn't keep from opening. Our location is outside the normal tornado zone. 2 tornados in the last 110 years as I understand it. So that was my thinking.