Paving a Greenhouse

[phykell]

Hi,

I've had a greenhouse installed with a dwarf wall and a concrete base, about 16sqm internally.

I now want to pave the base in natural sandstone setts (Marshalls Fairstone) - they're approximately 50mm thick with some variation.

I was thinking a layer of sharp sand and some brush in grout/resin or do I need to have a weak mortar base?

Thanks

 

[Wayners]

Sand or as anything soft with make the ants very happy...

Full mortar bed is required