i have a area about 10 feet from the back of my home. the area is an upward fairly step grade and is about 8 feet in height and 60 feet in width. there are some small areas that expose some shale type surfaces. i want a very fast spreading cover that will stay all year. most, proably 70% of the desired area to cover is generally exposed to the sun. as said very fast spreading and not expensive due to such a large area. i live in the south western part of PA.

look forward to all of the info/advise.