The installation was easy after a lot of prep work to get posts in place for the sail to attach.  We were looking forward to having shade for our poor plants during the hot Texas summer.  We were very disappointed to discover that water does not pass through but pools on top.  The product information clearly states: "The fabric is permeable, allows water and airflow to go through to prevent pooling water".  Well it does not!  Not sure what application this product has as I don't think anyone wants to put it up and down depending on rain or wind conditions.