Vijay Posted March 17, 2017 Share Posted March 17, 2017 Had a few quotes for geotextile membrane to go under type 1 mot and wondered what the difference in them is as they price has varied. I understand I need non woven as it's non permeable, but the price has varied from £1 m2 to £110 for a 100 x 4.5m roll which is 27p m2 Link to comment Share on other sites More sharing options...
JIH Posted March 17, 2017 Share Posted March 17, 2017 I paid £155 for a 4.5 x100m roll of MD100 . Was the cheapest non woven I could get delivered up here. Link to comment Share on other sites More sharing options...
TheMitchells Posted March 17, 2017 Share Posted March 17, 2017 you may want to look at Horticultural suppliers as they use the membranes too. Not sure if they'll be cheaper or more expensive though. Link to comment Share on other sites More sharing options...
Oz07 Posted March 18, 2017 Share Posted March 18, 2017 Your near Midlands aren't you? EH Smith do 2 good ones. The black one is around 100 quid. Supposed to be non permable but I've noticed water pool on it. White one is better but closer to 200 quid. I've used both before Wait till you start talking to groundworks people. They reckon there's about 500 different specs. Link to comment Share on other sites More sharing options...
RichS Posted March 18, 2017 Share Posted March 18, 2017 2 hours ago, Oz07 said: Supposed to be non permable but I've noticed water pool on it. Have I got this wrong??. I thought non permeable didn't allow water (and others) to pass through, so surely water would pool on it. Link to comment Share on other sites More sharing options...
Oz07 Posted March 18, 2017 Share Posted March 18, 2017 Sorry yes Link to comment Share on other sites More sharing options...
RichS Posted March 18, 2017 Share Posted March 18, 2017 3 minutes ago, Oz07 said: Sorry yes Oh good, thought I was losing the plot Link to comment Share on other sites More sharing options...
dogman Posted March 18, 2017 Share Posted March 18, 2017 I have 800 sq m of the woven black stuff that was under our menage probably throwing it out Link to comment Share on other sites More sharing options...
RichS Posted March 18, 2017 Share Posted March 18, 2017 (edited) OK, now I know I'm on the correct tack I will ask this question of Vijay, and the answer may be simple but I'm just too thick to see it. What would be the reason to use a non permeable membrane under MOT1, surely this will just hold water. I would have thought you would need a permeable membrane to contain the MOT1 but let liquids pass through. Edit Just had a thought. is it to stop water from rising into the MOT1 and not the way my mind is working??? Edited March 18, 2017 by RichS Link to comment Share on other sites More sharing options...
Vijay Posted March 18, 2017 Author Share Posted March 18, 2017 Hi Rich, I'll be having a drain at the front of the drive so I'd want to water running down into it. If I was making the drive permeable, I would use type 3 to allow the water to drain through to the ground. But I think I'm correct in saying that won't really happen in clay like I have, hence the run off and drain Link to comment Share on other sites More sharing options...
Vijay Posted March 18, 2017 Author Share Posted March 18, 2017 9 hours ago, dogman said: I have 800 sq m of the woven black stuff that was under our menage probably throwing it out Where abouts are you? Link to comment Share on other sites More sharing options...
dogman Posted March 18, 2017 Share Posted March 18, 2017 Berkshire, near Reading Link to comment Share on other sites More sharing options...
RichS Posted March 19, 2017 Share Posted March 19, 2017 18 hours ago, Vijay said: Hi Rich, I'll be having a drain at the front of the drive so I'd want to water running down into it. If I was making the drive permeable, I would use type 3 to allow the water to drain through to the ground. But I think I'm correct in saying that won't really happen in clay like I have, hence the run off and drain Hi Vijay, Thanks for the answer. Must admit I never gave clay a thought and now it makes sense. Very sandy where I am so water just disappears Link to comment Share on other sites More sharing options...
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