Posted: Wed Jul 22, 2015 7:20 pm
An old friend resurfaces via email. He's a landscaper who does the occasional bit of paving, but knows his limits. He thought this would interest me.....
A contractor has recommended a flagstone laying method - pedestrian only
- type 3 sub-base, 100mm
- continuous 70mm wet mortar bed
- flagstones with a porous resin pointing.
AND pre-pointing he makes holes in the wet bed with a metal rod.
So, he says the water percolates through the pointing - down the holes and through the type 3 subbase(no finings) Voila! So.... he says SUDS compliant
...if it had come in from A.N.Other, I'd have marked it as a wind-up, but I know this guy, so I've no doubt this methodology is being suggested as genuine.
To me, it seems ridiculous. If you want a suds-compliant flagstone pavement, lay on trass/no-fines bedding. Why would you spend all that time making holes you *know* are going to block up with litter, fag ends and general detritus?
What do the rest of yous think?
A contractor has recommended a flagstone laying method - pedestrian only
- type 3 sub-base, 100mm
- continuous 70mm wet mortar bed
- flagstones with a porous resin pointing.
AND pre-pointing he makes holes in the wet bed with a metal rod.
So, he says the water percolates through the pointing - down the holes and through the type 3 subbase(no finings) Voila! So.... he says SUDS compliant
...if it had come in from A.N.Other, I'd have marked it as a wind-up, but I know this guy, so I've no doubt this methodology is being suggested as genuine.
To me, it seems ridiculous. If you want a suds-compliant flagstone pavement, lay on trass/no-fines bedding. Why would you spend all that time making holes you *know* are going to block up with litter, fag ends and general detritus?
What do the rest of yous think?