Rolled roofing is an asphalt roofing material that comes in long sheets that are rolled up. While it doesn't have the longest life expectancy, rolled roofing is easy and quick to install, which makes it ideal for applications on the garages, sheds or other structures where an impeccable and aesthetic roof isn't crucial. If the roof is easily accessible and not visible from the ground, you can also use rolled roofing there and just replace it every 10 years or so.
Sweep the roof with a broom to get rid of any dirt and debris that has collected there. Set the rolled roofing out in the sun to warm for at least two hours.
Spread a layer of roofing cement around the eaves of the roof so it is 2 inches thick. Unroll the first piece of roofing across the lowest horizontal edge of the roof.
Adjust the roofing so it is straight and then nail is down along the edges with galvanized nails and a hammer. Space the nails 6 inches apart.
Lay another piece of roofing next to the first if it is not long enough to cover the entire row of roof. Overlap the vertical seam by 6 inches and nail the new piece down in the same way as the first.
Apply the next row of roofing above the first with a horizontal overlap of 3 inches. Nail the roofing down and continue upward until you reach the peak, then cover the other side in the same way.
Spread cement over the peaks and edges of the roof and nail the edging down to cover the exposed edges.