Fencing with Exposed Agg

Johnno1224 · Jul 31, 2014 2:54 pm

Hi guys im in the process of building my house and i want to put down around 80 sqm of exp aggi down around the perimeter of my house and at the rear roller door

just wondering if i should get the fencing guys down to do that first and then concrete around it or do i concrete and leave areas for posts to be placed?

also does anyone know how much it costs??

mgilla · Jul 31, 2014 6:12 pm

Do the fence first, will look heaps better when finished.
Cost will vary depending on what mix you choose, some cost more than others. And how much prep work is required. You can work from $80-$110m2

Johnno1224 · Aug 01, 2014 8:15 am

ok awesome thank you

Handy007 · Aug 11, 2014 9:57 pm

Just out of interest over time fence post become loose and water seeps between post and concrete.

Is there any products to line the inner part of the post or methods to keep the gap tiny if post do get movement over time....

mgilla · Aug 11, 2014 10:37 pm

If you ramp the concrete up around the post so the water runs away and doesn't sit against the post that will go along way to preserving the post. Using treated hardwood posts should also help.

Handy007 · Aug 12, 2014 11:05 pm

mgilla

If you ramp the concrete up around the post so the water runs away and doesn't sit against the post that will go along way to preserving the post. Using treated hardwood posts should also help.

Good points......

My real point was what happens after a long peroid of time water seeps through the gap and weakens the post to it moves a little. Would you put some kind of expansion foam joint around the post?

mgilla · Aug 13, 2014 11:20 am

If your just concreting the post in the ground then no don't put any foam around it. That will create a void where water can soak in and sit causing dry rot, that's the thing your trying to guard against.
Once you have your posts in and if you are then concreting around them ie a path, then yes run able flex around the post, this will help prevent cracking.

Handy007 · Aug 13, 2014 9:50 pm

mgilla

If your just concreting the post in the ground then no don't put any foam around it. That will create a void where water can soak in and sit causing dry rot, that's the thing your trying to guard against.
Once you have your posts in and if you are then concreting around them ie a path, then yes run able flex around the post, this will help prevent cracking.

The post are already in place but I would like to redo my concrete pavement.

BTW thanks for your reply.....

chippy · Aug 14, 2014 10:40 am

The concretor I work with normally leaves a 50mm gap between the concrete and the fence, it's just formed in a nice straight line. This gap can then be filled with coloured stones.
This allows water to drain off the concrete and not pool against the fence. The fence can also be repaired or replaced later without having to cut or damage the concrete.