@Terry; Check out these pages [1, 2].
Their site has a lot of information available.
For driveways, that manufacturer recommends US 200 fabric.
One thing about thermoplastic geotextiles; you need to keep them out of the sun. Ultraviolet light from the sun will eventually break them down. But when the fabric is properly buried under gravel it should last for decades.
@Mark; you might want to contact a manufacturer as to which is the right material to go under 6" rock.
Comment by
Roland_Smith
— Sun Aug 14 17:00:19 2016
I've used geotextile called geogrid in regular retaining walls and load bearing walls such as parked spaces behind the wall. They work as prescribed. But you have to install it exactly as the manufacturer's specifics. Although for your road use it's much simpler. In wall if it gets installed off level it can actually pull in the blocks compromising the wall its so strong.
I installed professional grade landscaping fabric between my concrete raised beds about 10 years ago. I did double the 50 foot fabric because, at that time, my beds were only 25 feet long, but it's held up remarkably well, without putting anything on top of it - not gravel, mulch, nothing - and it sits in the sun all the time. The worst that has happened was when some dirt leaked out from the concrete beds and weeds sometimes get lodged in there and grow but it's easy to pull out. I'm thinking maybe that kind of landscape fabric might be helpful, especially if you put rock on top of it.
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I know nothing about these fabrics & their application. Can you post Larry's suggestion, or more detail on the fabric & how you use it?
Thank you! I do buy all your books!
@Terry; Check out these pages [1, 2]. Their site has a lot of information available.
For driveways, that manufacturer recommends US 200 fabric.
One thing about thermoplastic geotextiles; you need to keep them out of the sun. Ultraviolet light from the sun will eventually break them down. But when the fabric is properly buried under gravel it should last for decades.
@Mark; you might want to contact a manufacturer as to which is the right material to go under 6" rock.