DEMOLISHING A 1970's FEATURE, WHATS THE POINT OF IT!?
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The video documents the demolition and renovation of a house built in the 1970s, revealing significant structural quirks that challenge modern construction standards. The narrator begins by removing old cladding and discovering that the exterior wall is a solid concrete structure rather than a traditional cavity wall, necessitating the cutting of a new cavity from below ground level. This process involves installing a lintel and grinding away the bottom section to create space for insulation and proper drainage, highlighting the labor-intensive nature of retrofitting older properties. The team also encounters unexpected complications, such as missing steel deliveries and forecasted thunderstorms, which force them to adjust their schedule and work around potential weather delays.
A major focus of the renovation is addressing the building's poor original construction methods, particularly the lack of proper ties between wall sections. Upon inspection, the narrator finds that the walls are held together merely by tiny tacks and cut nails, a common but flawed practice from the 1970s and 80s that offers little structural integrity. To rectify this, they plan to install a robust system of cavity ties, including screw ties and standard cavity ties, to strengthen the connection between walls and prevent cracking when render is applied later. Additionally, the team discovers evidence of termite damage, further emphasizing the need for careful repair and sealing of gaps before proceeding with insulation and finishing works.
As the demolition progresses, the narrator deals with the messy reality of breaking out solid brickwork and managing damp courses, ensuring that the new cavity sits correctly below the damp proof course to prevent moisture issues. The interior side of the cavity is left rough for now, as it will eventually be plastered over once the external work is complete. Despite the physical toll of cutting through tough concrete and dealing with debris, the team remains optimistic about transforming the outdated structure into a more resilient home. The project also includes personal anecdotes from the narrator's childhood, recalling rainy days at school sports events, which adds a human touch to the otherwise technical and demanding construction process.
Ultimately, the video serves as a cautionary tale about the hidden challenges of renovating mid-century homes, where solid walls and inadequate tying systems require creative solutions and significant effort to modernize. The narrator emphasizes the importance of not skipping steps like installing lintels or adding sufficient ties, even if it means deviating from original designs that may have been structurally unsound. With materials arriving soon and weather conditions improving, the team is ready to move forward with filling gaps, sealing the cavity, and preparing the house for its next phase of renovation, turning a potentially disastrous 1970s build into a safe and comfortable living space.
Read the full video transcript
10 course to block.
Four ties.
>> Well, it came out easy.
>> This is coming off a lot easier than I
thought it would.
>> We had a bit of um
as as you went to hit
>> Right, Tuesday the 30th of June
2026. Yeah, end of June today. Can't
believe it.
>> So, we we going holiday
We going holiday
as of tomorrow we going holiday this
month.
>> Here we go. That was off.
>> In less than 2 weeks.
>> Yeah.
>> So
This is coming off a lot easier than I
thought it would.
>> We had a bit of a
uh
complication cuz we were meant to be
somewhere else today.
But um the steel's not been delivered.
And the customer messaged last night
saying it's not been delivered. And so
they're not ready for us.
>> they they're not ready to be They said
any day but tomorrow. Actually today.
Yeah, it's forecast thunderstorms later,
so.
>> So, we're just doing a bit of
demolition. Oh, this is getting blocked.
It's getting blocked up, isn't it?
>> See, we've got to
take all this off obviously, which isn't
which isn't that really easy. It's
coming off. And it doesn't leak.
>> Look at the nails if if you can find
them.
There's barely any. I think I think it's
just
I don't think there is any actually. I
think it's just a decent done.
>> Oh, no, there
tacks.
>> Ah.
>> Tiny tacks.
Unbelievable.
And this tool
the picture rail
and then the buttons behind.
Buttons are looking a bit
It was actually quite good, Nick.
Everything's bone dry.
But
it's as I showed you yesterday, it's a
solid wall.
So, we're bringing it out and making it
cavity wall. So, we have to
cut this concrete out of the bottom.
Go just below ground, put a lintel in,
and angle grind.
Hopefully
the the wall will not actually. We'll
see.
We're going to get some fiber lights and
bring everything forward.
Give it a little bit of weight up.
And then reduce that window. Take the
top bit off that window.
That was ridiculous.
Just Yeah, that's These are nails.
That's what's holding that side panel
in.
Just tacks.
Wow.
You don't get much simpler than that.
Certainly found out it's 70s built,
though.
Found out it's a 70s built. So, there's
70s for you.
Wow.
Yeah, it was by the whole build.
It's termites as well. That's quite
shocking.
Well, there you go. That's more of a
termite.
Ow.
That was just nailed.
Cut nails.
They were all the rage in the 80s and
70s.
Still do now.
There's a tie wire sticking out.
Hopefully, those tie wires Hopefully
those tie wires stick out far enough
just to use them.
There's another cotter pin.
We have just got a load of cable ties,
the uh long ones.
From Joseph Pars. There's another cotter
pin here.
We've got a cotter pin over here.
>> I got to hope and pray for a ladder for
that one.
>> Yeah.
Well, that didn't take long.
Right, I'm going to get me a latte and
then [music]
go to time lapse.
>> [music]
[music]
>> It's pretty loose, but that's what you
expect from pit them like that anyway.
But hopefully once these top three are
out, the rest will just
pop off then.
>> [music]
[music]
>> Well, it came out easy.
Just got the bricks to take out now,
which probably need the drill for cuz
they're actually
quite tough in.
But,
yeah, once they're out, hopefully
there's a bit of wall underneath that we
can build off of.
And then, once all this stuff arrives
and we're back here, we can
get it started.
And we'll obviously fill up all this as
well cuz
we fill them anyway. Um
could all do with a bit of filling
before we slap insulation in. And
there's a few tires which could possibly
be used
but we've got ours anyway.
So yeah, lovely stuff. I'll go get the
drill and all this crap's being moved
into the garage for now. So I'll get
that done.
And I'll catch you in a
>> [music]
[music]
>> Not much wrong in that.
That's a long way in that.
Um
experience tells me
Well, told me that
I was going to put a lintel in.
But then experience said
you shouldn't even put a lintel in
because
there's no way they're going to put this
detail in in the foundation.
So
Get down a little bit.
And there's our reveal wall.
Just a matter of popping all the bricks
out, bringing everything forward,
tooling it in.
Job's a good 'un. Now we can crack on.
Try not to miss out on putting lintels
in
down here anyway. That's our lintel at
the
So
I'm going to carry on breaking all this
out. And I'll actually just start to
fill all these big massive holes in
just to seal it all up.
>> We um didn't have any sand. Thankfully
customer had a bit of um that blue
circle mortar. We had a bit of sand, so
I mixed that in with that to give it a
bit more
texture.
>> It's madman though, isn't it? It's
horrible stuff.
>> Oh, yeah.
>> Just like Mark Hep's mix.
Whatever Don't know what sand he uses,
but it's awful stuff. You just tell by
looking at it.
He manages though.
Right, let's crack on.
>> [music]
[music]
>> That was a slog.
Cutting that bloody cavity out.
It's solid up to the little bricks
there. It's not likely to be like that.
It's only
just two below damp. So, I've got it
down three below damp now.
So, that's all And it's drying out as
well. It was quite wet. But, it's below
damp, so it generally is.
There you go. So,
that's it basically. Three course of
brick, damp course, and
get on with the blocks.
As you can see,
the inside of the cavity is never
pretty.
And the other side gets plastered,
obviously.
These are just the um
couple of the joists from the landing,
cuz you've got the You've got a half
landing here. It goes up. That's the
landing window.
So, um don't know what to do now, cuz
it's Our stuff's not coming till
Wednesday, and it's forecast
thunderstorms. But, I'd like to get this
little bit of brick working done before
we go.
Um
It's a tough one, that.
Um
I think I'll have to take that half out,
actually.
Because um
that's damp course.
That's damp course there. Yeah, so brick
work goes up to there.
Yeah, one, two, three. Yeah, I'll sort
that out now, and then um
take it from there.
>> Say that again.
>> [music]
>> I forgot to mention 1 2 3 4 5 6 7 8 10.
10 courses of block.
Four ties.
Two up there on course eight.
One course two.
And one on course four.
That's it.
Basically.
We'll be
We'll be getting a lot more ties in than
that. We've got some cavity ties and
we've got some screw ties as well.
So it's going to strengthen all up.
Probably any movement then when the uh
render goes across it so it won't be any
cracking.
And I think that's it. We're just going
to tie it now cuz it's getting up ready
for this thunderstorm that's due.
>> I hope
I hope the kids sports day is going to
be over when that thunderstorm hits. I
wouldn't want to be
doing me track and
>> Mom's gone away now to go and see
Daisy's.
So I said oh the weather's not that bad
really.
>> I'll never forget once I was doing we
were doing
I think it was football or something PE.
And it was chucking it down.
We were there my hands freezing and I
remember them being bright red, cold.
And buddy
teacher's there full full full tracky
outfit hands in pockets. Come on.
Can't let you go in. No no. Did the
whole lesson outside.
>> You don't do that nowadays.
>> And then if another another one we were
we were doing a cricket in the rain.
Told you this story. And then
as as as you went to hit
right out of his hand
right onto one of me
other colleagues' faces.
His eyes, his nose, his mouth, and his
ears were all bleeding.
He got proper clouded by that thing.
Looked like
buddy Indiana Jones when they start
melting.
>> When you had to go out to go to school.
Not anymore.
>> [music]
[music]
>> Mhm.