My roof leaks and I can't afford to reroof it at this point.

I have acquired two large pieces of 40x50' HD greenhouse plastic to cover it.

Yesterday I was passing a road project and they had a large mound of sand covered with sheet plastic, with half-filled sandbags acting as weights to hold the plastic down.

Do you think I could use this technique for my roof, rather than nailing down strips of wood as I had originally planned? I was thinking of putting a bag every four feet or so, and nailing 1x2s along the edges. This is a double-wide mobile home with fairly shallow pitch.

Any opinion would be very welcome.

Sue