Should You Use Woven or Non-Woven Geotextile as Underlayment?
If just the word "geotextile" has you saying.. what? Let me explain a little bit about the difference of woven and non woven.
The woven geotextile fabric is manufactured with a process of weaving narrow strips of film together to form one large peice.
The benefit of woven underlayment is that it has a higher load capacity. This would be good for roadways, etc. The downfall of woven is it does not have as good of drainage characteristics as non-woven underlayment would.
Non- Woven Geotextile:
Its excellent filtration and drainage makes it ideal for pond underlayment, erosion control, speration fabric, and drainage fabric. So for example.. if you were building a permeable paver patio you would want to use non woven fabric so that the water did not pool on the patio and drained into the soil.
So I hope that clears up some confusion on why we use non-woven geotextile instead of woven on applications. Let me know if you have any questions.