I have managed to build a small coop and it has a 4 x 4 shed roof.
I have asphalt roll roofing, asphalt shingles, flashing and nails etc.----but I have no roofing felt
I have been looking for scraps at construction sites etc, but so far no luck.
Is there anything that I can put under the shingles or roll roofing instead of the roofing felt?
I have asphalt roll roofing, asphalt shingles, flashing and nails etc.----but I have no roofing felt

I have been looking for scraps at construction sites etc, but so far no luck.
Is there anything that I can put under the shingles or roll roofing instead of the roofing felt?