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What’s the best membrane


Steve Bullman
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13 minutes ago, Gimlet said:

Geotextile stops mud migrating to the surface. It won't block weeds.

To be specific, it won't stop weeds gowing in the substrate above it. White geotextile may allow weeds to grow for a short while in the soil below it, but not with stones etc blocking the light.

 

Genuine Terram is tough, and I'd put more faith in it's abilities to stop things like knotweed from piercing through than I would the generic black landscape fabric.

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3 hours ago, Steve Bullman said:

Leaning towards the Terran providing it absorbs water as well as the lack stuff. Planning on putting some expensive plants in so don’t want to risk losing them 

I've done a little test that may help Steve.

 

Piece of Terram over a trug and ran the hose

DSC_0495.thumb.JPG.6508d1fb2fd0aadffb4df97ddadc9e55.JPG

 

Drains through in seconds, no water pooling on the material.

 

DSC_0500.thumb.JPG.cf2f7fad3aab263845cc55519e1a2acf.JPG

 

2 inches depth of water in the trug, essentially straight through the Terram. 

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