The Brew Cabin

Hi everone,

Could anyone tell me where in the paving layers (over the primary base, over the sand and below the paving brick) the porous PVC sheeting is placed, which is supposed to prevent weed growth ? Thanks in advance for your help.

Leo

It's not a porous pvc sheet, it's a geo-membrane or, if they are not too sure what theyre about, a landscape fabric . If one is to be used with a block paved surface, then it should go between the sub-grade and the sub-base to prevent the sub-base settling/mixing into a weak sub-grade.

It is not a weed barrier, as no weeds (with the exception of the really pernicious stuff like Japanese Knotweed ) would be able to penetrate the 200mm min construction thickness of a standard block pavement.