When winter is over and it's finally nice enough to venture out into your yard, the first thing you should do to ensure that your lawn will have a good head start for the growing season ahead is to clean up all the debris that built up over the last few months. A power blower will help you remove leaves, sticks and other materials.
A fastener in sheet metal should not be any closer than four to six diameters from the next one. For example, if you are using a 1/8-in. Pop Rivet, the nearest another rivet should be is between 1/2 to 3/4 in. By using this rule, you will reduce the chances of damaging a part, as well as make optimum use of your fasteners.