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What should I use under the bricks to stop weeds?

Hi all,

I’ve had to pull up the brick driveway to fix some stormwater pipes and before I put everything back down was wondering if there is something to keep the weeds from growing through around the bricks?

Web searches come up with various methods (mainly from the US), so any thoughts would be appreciated.

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Comments

Dave-1

Good Morning @Dallas_Mc

Im just commenting as Id be interested as well 🙂 Having the bricks close to each other would limit weeds I suppose but I have gaps between mine so I will hang off your question 🙂

Dave

Jewelleryrescue

Hi @Dallas_Mc

Standard black plastic will stop the weeds from underneath and even steralise the seeds while in the hot sun.

As they are bricks you will get some wind blown dirt and seeds in your brick cracks and weeds will grow from that after a time but a high pressure wash or simple garden hose on jet should help clean this dirt out.

If you sprinkle and broom in cement powder on top of the bricks after re laying them it will act like the air bourne dust and settle in the cracks first and limit seed growing opertunities and hold the bricks firm. Lightly and sparingly wet the bricks washing more cement into the cracks. 2 hours later Simply wash off excess cement powder off the bricks surface not aiming at brick cracks so cement wont get blasted out.

EricL

Hello @Dallas_Mc

That's spot-on advice from @Jewelleryrescue. Once you've levelled the sand base simply line the top of the sand with builder's plastic. This will prevent any any water or sunlight from reaching the germinating seeds in the sand.

But it will be impossible to stop the weeds from coming in from the surface. But because of the plastic liner they won't be able to send down roots and it should be easy to remove them from between the pavers. Using a traditional sand and cement mix as gap filler is an excellent way to reduce weed infestation even more.

If you have any other questions we can help with, please let us know.

Eric

wooshka

I use this in all my paving jobs https://www.bunnings.com.au/dingo-20kg-powerloc-paving-sand_p0760478

A lot easier to use than doing a sand cement mix and flows down into any crevices easily, just make sure everything is super dry when you poor it on

EricL

https://www.workshop.bunnings.com.au/discussion/comment/32163#Comment_32163

Hi @wooshka

Thank you very much for the suggestion, let me tag @Dallas_Mc to make them aware of your recommendation.

Eric

Jewelleryrescue

https://www.workshop.bunnings.com.au/discussion/comment/32163#Comment_32163

Nice product and idea @wooshka 🙂

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