Concrete drive

Plugguy

Looking for some advice. I am putting down an exterior concrete drive at the front of my house. Is it necessary to put down some damp prof layer under the concrete? Some people say that it is good to do this, but I can't understand why it would be a good idea as the drive is going to be exposed to the elements anyway.

rounders

Plugguy wrote: »

Looking for some advice. I am putting down an exterior concrete drive at the front of my house. Is it necessary to put down some damp prof layer under the concrete? Some people say that it is good to do this, but I can't understand why it would be a good idea as the drive is going to be exposed to the elements anyway.

I've layed a lot of concrete including a yard suitable to carry a 40 tonne truck turning and we never put down damp course. A good base layer of stone such as 804 harded using a wacker should do the job.

If you really want it to last a lifetime you could put in steel but its probably over the top for just a drive way

Plugguy

rounders wrote: »

I've layed a lot of concrete including a yard suitable to carry a 40 tonne truck turning and we never put down damp course. A good base layer of stone such as 804 harded using a wacker should do the job.

If you really want it to last a lifetime you could put in steel but its probably over the top for just a drive way

Thanks Rounders. I will leave the damp prof out. I have 3 inches of 804 down and rolled. Just waiting now for the weather to improve before I order the concrete.

foxy farmer

In drying or warm weather it might help by stopping downward movement of moisture in fresh concrete thereby slowing the setting process.