G'day and welcome back to Buildsum and the series of videos on building a deck and
In this video. I just want to look at the
termite
Barrier and the requirements for when you need to have a termite barrier
So basically every house its constructed has a termite barrier
and what we don't want to do when we build our deck is actually breach or
Give the termites a chance to go around that
barrier, so
Not only will it be detrimental to your deck. It could be detrimental to the entire house. So
The best way to know where that to my barrier is in your house is if you look at the outside wall of your building
You will find
You just turn around you'll have a row of
These what they call perps that have no mortar in them
okay, there there is a weep hole to let the moisture come out of the brick wall, but
Generally in that row of mortar behind or just below
That row is where your ant cap or your termite
Termite barrier is placed. So if you can put your deck below
That termite barrier then you're pretty much set. You don't have to worry too much about
Your termite resistance. All you have to do is make your deck out of a termite resistant material
You don't have to worry about putting in an extra barrier
However, that's not going to be the case. Unless you have a fairly well built up house
I mean a lot of cases nowadays you're going to end up with the situation like this
Where that barrier is practically right at the bottom of your wall
Right down here
Okay, and that would in that case you're going to end up with what they call a slab or a deck on ground
situation where you know we can't
More-or-less can't put in a termite barrier. We're just going to have to build it out of termite resistant materials
However, if you have a deck that is built up
And you're gonna put it up on Piers
Then we need to maintain the barrier that
Exists in the house. So the way we do that is
There's basically three different P types that you're going to come across
so more traditionally is the
brick pier
So one or two bricks, but two bricks or 230mm by 230mm
Becoming more popular nowadays are these steel piers and you can buy these pre-made caps and
Then you can have the timber post. Now. These all have a built in termite barrier. So
The barrier on top of the brick pier is an ant cap. It's a pressed
metal cap that protrudes out on a bit of an angle all the way around
Okay, that stops the termites because even if they work their way up in between the brickwork when they hit this metal cap
They can't eat through the metal so they actually have to come around build little tunnels and go around outside
the cap
Remembering that no to my barrier is a 100% effective at stopping
Termites all that does is divert them and make them come out where we can see them. So that's all the cap does
The steel pier again, it has a little bit of an ant cap on top
So if the termites were to get inside and work their way up the center of the pier though it again, they hit the cap
They'd have to come out and around the cap to get into our timber and all timber sits on top just here
So that little cap there froms our termite barrier in that case and with our timber post
we have to have a minimum of
75mm
Clear from the ground level
Whether that be our pad or we just had the ground covering that you have to have 75mm from the bottom side of this
Stirrup or post you to the ground to give us a termite barrier
That way we would see the termites if they decided to climb up there and we'd be able to do something about it
okay, so there's the three probably most common peir types that you're gonna get and
how they achieve
Its termite barrier. So that's as I said, it's pretty standard if your deck is off the ground one
You're going to build it out of termite resistant material and two. You're probably going to have a
Termite barrier just built in because it's pretty standard practice nowadays
Okay, so there the termite requirements and how we achieve a termite barrier
on our decks
G'day, I'm back
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