gravel driveway, honeycomb cellular tiles for gravel driveway? gravel

stolt

hi i have a tarmac driveway and was looking at prices on getting it hot tar and gravel in its place i also have some grass in front of a bay window that i was going to dig out put some type 1 down and then gravel on top, was going to edge it with some brick pavers.


over the tarmac i was thinking of using these type of things....

http://www.stabledrive.co.uk/?gclid=CISLyeHk_qgCFQ...



sound too good to be true, are they?



also as the driveway will be higher than the path out the front, i need something to keep the trays on the driveway and i dont think the pavers will stay put.although i bet theres some glue that will do the job (paver onto tarmac)

anotherbaldrick

The installation spec calls for the honeycomb units to be set on a free draining sub-base of granular material. If you try and put them on top of your Tarmac you could end up with a drainage problem .

stolt

anotherbaldrick wrote: »

The installation spec calls for the honeycomb units to be set on a free draining sub-base of granular material. If you try and put them on top of your Tarmac you could end up with a drainage problem .

oh my thinking behind that was that as the tarmac has soakways already in that, as long as they are still open (was going to put fine mesh over them) then it wouldnt be any less drainage that than the tarmac.

anotherbaldrick

OK, but my concern would be in the longer term. Rainwater runoff from a driveway is not clean, it carries a lot of grit and dirt that would wash into the honeycomb cells and over time block them against the Tarmac. My feeling would be to lay a "Terram" geotextile drainage membrane on the Tarmac first . This is just a roll out job and is not expensive , obtainable at Builders Merchants. It would improve drainage and also give the cells something soft to bed down on.
http://www.terram.com/download-file.php?fid=21

stolt

anotherbaldrick wrote: »

OK, but my concern would be in the longer term. Rainwater runoff from a driveway is not clean, it carries a lot of grit and dirt that would wash into the honeycomb cells and over time block them against the Tarmac. My feeling would be to lay a "Terram" geotextile drainage membrane on the Tarmac first . This is just a roll out job and is not expensive , obtainable at Builders Merchants. It would improve drainage and also give the cells something soft to bed down on.
http://www.terram.com/download-file.php?fid=21

thanks, yeah that makes sense, ive been watching a few installation videos and there was only one company that looked as if they installed it over the driveway, but they still used as bedding mixture for it to sit on, my concern is that with these trays are that they are 40mm high min so i dotn think its going to look very nice sitting proud of the pathway, so i would have to finish it off with a kerbstone of some sort to help the car get up, think i'm going to have to get the tarmac out and put some type1 down then the gravel so its under the exsisting pathway.

thanks