"dean" wrote in message
ups.com...
I was thinking about a roll of roofing felt or plastic, but not sure
how UV proof they are. I used one roll of HD roof underlay and it was
the perfect size, but its like $50 a roll and I don't know how long it
will last in the light.

Underlayment, tarpaper, felt will last a few months. After the first rain it
will start to curl and degrade.
most home centers sell a flat roofing roll as well. That will last a long
time if put down correctly. The rolls look like shingles on one side.