weed control, black, permeable

Question

Which side up? Shiny or matte?

Answer 1

You should always follow the instructions on the packaging, and if you have additional questions about the use of the product, call the manufacturer or check their website for additional information (phone # and website are usually shown on the packaging). Once you've contacted the manufacturer, this article may also help you:

https://www.gardeningknowhow.com/plant-problems/weeds/weed-barriers-in-gardens.htm