If you've got a pergola attached to your house,
then you might want to give yourself some extra shelter
and protection from the weather simply by installing
some corrugated PVC roofing.
It's not a difficult job and will give you an outdoor area
that's a lot more usable.
Before we get stuck in, you need to be mindful of a few things.
Firstly, boarding regulations only
permit you to put a roof that's 20 square meters
or under onto your pergola.
So make sure you measure it out properly and are
under the limit.
You'll need a minimum of a five-degree fall.
Plus it's always a good idea to check with your council
for any updated boarding regulations just in case.
Righty-o, time to measure up for our sheets.
So I've got a length of 21 40.
Now I'm going to lay a 60 mil overhang also,
so that makes that 2.2.
We can go down and cut them.
Now if you're unsure if your roof is actually parallel,
you might want to measure and cut
each one of these sheets individually.
So I'm just going to mark 2.2 with a vivid on our sheet,
one on either side.
With this ruler, line one side and the other.
Now there's a couple of different ways
we can actually cut this.
One is using a fine tooth hand saw
cutting on a nice low angle.
Or you can just use a set of tin snips.
Now just do the same for all the rest.
Now our roofing just sits hard up against our weather board.
Now I'm not going to leave it like that because otherwise,
water's just going to get down through the back.
So what I've had made up is an apron flashing.
Now the way an apron flashing works is it
tucks in underneath between these two weather boards.
It's going to give us a nice, weathertight seal.
So in order to get that underneath,
I'm going to have to open that joint up to slip it in.
Now I want to protrude up at least 40 millimeters.
Now I've had this apron flashing custom-made to the right
color and length by placing an order
with the guys in the trade department at Mitre 10.
Now one of our best friends you can use for this particular job
is using the mighty handy bar.
Let's just kind of get underneath between those two
boards and wedge them open gently.
We only just want to take our time.
We don't want to crack these weather boards.
It's only enough just to get the blade of our sabre saw
underneath so we can cut the nails.
I've just about tucked in my apron
flashing in behind that weather board.
So I'll just crank that up a little bit further.
Right.
Now that's looking pretty good.
All I need to do now is slip my roofing in underneath.
And then once I've put a sheet on,
I'll come back and nail through the top weather board
in through my flashing.
So then I don't have to climb back up on the roof later on.
Now there's just a couple of bits of information
you should know before you go screwing down your sheets.
Now these great screws here have actually
got a cutting edge at the top of them.
So we don't actually need to pre-drill them.
The shank size is about six millimeters.
We actually need a 10 mil hull to go through our roofing
to allow for expansion and contraction.
So these little puppies here will do all the drilling
for us.
So there's no need for us to get a drill bit out.
Now one other thing.
I've put my cut into my sheet underneath the flashing
so we don't see any rough points.
And I've also made sure that I'm 60 mil hanging over the edge.
Now just one other thing I'm just going to double check
is to make sure that my roofing is going to be
parallel with all my rafters.
Because that's what you're going to see from underneath.
I can't trust the old house is going to be 90 degrees.
So I'm just going to make sure that the edge of the roof
is parallel with the side of our rafter.
So I got 60 millimeters there.
And that could come over just a tad.
And that's 60 millimeters here.
That looks great.
One other little tip too, you just
want to make sure your screws are all nice and straight.
So I'm just going to mark every second one of these ridgelines.
Now I'm not actually going to fix the first ridge there
because we're going to have the overlap of the sheet that's
going to go through that one.
So we'll just start the second one in.
And you only want to just drill that down just enough
so it's not pushing the sheet down too far.
Now, when it comes to fixing into our [INAUDIBLE],,
you only actually need to put the screws every third ridge.
But just to make it look nice and tidy and everything
in line, I'm just going to follow the same distance
as the ones down the bottom.
Now because I've got an internal corner here,
I'm also going to have to put another apron flashing down
this line.
Because I've got a corner box here
and a flat box in the middle, I've
got all these different lines, just to make it easy for myself
when I put the apron flashing on,
I've just ripped a couple of packers,
And I've just siliconed them to the weather boards.
And that's just going to take out all those different lines
and all that.
All I'm going to do is place the apron flashing hard
on top of that.
And then I'll have a piece of timber
that sits on top of that, and it keeps
it all nice and watertight.
Now I'm just going to fix this apron flashing in place using
these 30 mil galvanized clouts.
Now I'll just do the same along the rest of the line.
OK.
I'm just about ready to fix down my little timber head flashing.
Then all I have to do is screw down our apron
flashing through our roofing into our perlin.
Now just a wee little note, the type of screws
that we're going to use that go through our steel flashing
are not the same type of screws that we
use for our PVC sheeting.
These are just the standard roofing screw.
It doesn't have the pre-drilling sort of function
on the end of it.
Now when you're laying these sheets,
you just want to make sure that you're only doing one overlap
onto the previous sheet.
Now we're just going to make sure that we're
60 mil from the front face.
We're in line with the previous sheet.
And then once again, we fix exactly the same
as we did the other sheet.
Now just don't forget to nail off your weather board
through the flashing as you work your way along.
Now another thing you also have to do as you work your way
along is just pushing this soft edge
into the profile of the corrugate.
You don't want to jump up and do this later.
Sweet as.
Now I've got a half sheet here.
I cut that down using my tin snips.
And we just screw that down same as we always have.
As per council regulations, the next thing you'll need to do
is install guttering.
Check it out, a great result and a pretty simple way
to create some extra shelter and give yourself an outdoor area
that's a lot more usable.