Here in Ontario we have something cleverly named High Performance Bedding (HPB)by some aggregate industry advertising spin doctor. It's basically tiny pieces of crushed limestone, without the dust.
High Performance Bedding (H.P.B.TM) is the rather over-excited name for bedding material used to provide drainage layer under slabs, retaining walls and between flagstone. Apparently it is approved as an ‘alternative’ material by the Ontario Building code to the formally recognized HL6 clear stone.
It sells like crazy.
But surely it's a stretch to call it high performance ? Having had initially great expectations, I have long since given up holding it cautiously in my hands waiting for it to somehow 'perform' -as I sit perched on the edge of my seat, expecting it to put on some amazing show. . . Nope
It's just tiny gravel folks. Nothing to see here. Move on.
