How to install a Chimney Lashing Kit with a aerial corner bracket
When installing a corner bracket
on a chimney with a lashing kit
there are 3 different corner brackets you could use
We will give you some idea what
you need to use being there are
different chimney corner brackets and 2 different lashing kits .
It all depends on the size or
pole on what size chimney corner bracket you would use
Lets start with the standard aerial installation
This normally has a 6 ft pole so i
would use a 6"chimney corner
bracket with a small lashing kit
Like the picture below
Picture of a 6" chimney corner bracket with a small lashing kit
I might want to go a bit higher with the aerial to gain moor signal .
So lets say with a 10 ft pole i would then use a 9" chimney corner bracket with a small lashing kit
Picture of a 9" Chimney corner bracket with lashing kit
Then any aerial install bigger than
a 10ft pole i would use a 13"
cradle bracket with a large lashing kit
Picture of a 13" cradle chimney bracket with a large
The difference between a small
lashing kit and a large lashing kit is the U Bolts in the kit
Picture of a U Bolt
The U Bolt is used to hold the pole onto the bracket .
There are 2 U Bolts used on a corner bracket
You will find that when you are using
a longer pole the width of the pole is larger
The smaller the pole the width is smaller
So on a 10 ft or 6ft pole you can use
a small lashing kit with small U Bolts in the kit
But anything that is over 10ft you
will need a large lashing kit with large U Bolts
The lashing kits in the trade are
called a large poly kit or a small
poly kit They look like the picture below
Picture of a poly kit
So before you start to install your
lashing kit with corner bracket
work out witch corner bracket and witch lashing kit you will need for the job in hand.
Always install your lashing kit lower than the top three courses of brick on your chimney
Before you start any work on a chimney check the structural stability .
Check that the mortar is not crumbling away.
Give the chimney a good push ,see if it moves ?
Picture of unstable Chimney Breast
You then start by taking the parts out of your poly kit (lashing kit)
You should have in the poly kit a
length of lashing wire
2 x j bolts
3x corner plates
and 2 u bolts
like the picture below
Picture of a lashing kit
To start the install of the lasing kit you
would first take one end of the lashing wire
Picture of lashing wire
You will need to splice a loop on the end of the lashing wire so it fits over the end of the J Bolt
The reason you splice the lashing wire is because of the strain on join and you don't want the aerial coming down on some ones head so this is a important part of the lashing kit install .
If you look at the VIDEO link below you will find a video we have put together to help you with the splicing of lashing wire
Video on wire spicing
The good thing is you can splice the one end of the lashing wire when you are on the ground before you go up the ladder to the chimney
You then take the nut of the J Bolt and fit it into one of the center hole in the corner bracket
Picture of a 9" inch chimney corner bracket
You now need to position the corner bracket on the corner on the chimney .
Now take the other end of the lashing wire over or around the chimney so it ends up at the other side of the corner bracket.
Where you have inserted the other J Bolt on the opposite side of the corner bracket so the J of the J Bolt is ready to have the lashing cable spliced onto it.
You would then tighten the lashing cable by pulling the end you have not connected yet towards you .
Now wrap the end of the lashing wire around the end of the J Bolt but
Leave a little space as you have to insert the corner plates behind the lashing wire on each corner of the chimney.Now splice the lashing wire in a loop over the J Bolt .
Picture of a corner plate
Before you start tightening the lashing wire the corner plates need to be put in place behind the lashing wire on the corners of the chimney The corner plates stop the lashing wire cutting into the brick
You are now ready to tighten the nuts on the J Bolts
This will intern tighten the lashing wire around the chimney
When you have finished you can insert the two u bolts into the corner bracket ready to hold the aerial mast.
Please watch our video showing you howto install a aerial bracket on a chimney lashing kit
Terry recommends a few items below to help you with your corner bracket and lashing kit install below
So you get your kits as soon as possible all our Kits are sent by first Class Post or by myHermes
a small lashing kit
9" Corner chimney Bracket with
a small lashing kit
Small lashing kit
Picture of a small lashing kit
Contains Lashing wire, 2 x j bolts,
3 times corner plates ,
Plus 2 x u bolts
Large Lashing kit
Picture of a large lashing kit
Consists of lashing wire , 2 x j bolts,
3 x corner plates , Plus 2 x u bolts
2 x large U Bolts
If you would like moor information on fitting
aerial wall brackets .Then go to the link below
that will take you to our topic page on installing
aerial wall brackets