SeaKan wrote:
how do i know if i need a new roof if i have no leak? i know my shingles
are old, but i don't know if a replacement is necessary. i have black
streaks on parts of the roof. what are the signs you need a new roof?

Curling corners and visible loss of color granules exposing the black
base layer on fiberglas/asphalt shingles. Splitting in wood shingles.

The black streaks can/should be cleaned off.
http://www.google.com/search?hl=en&q...hingle+cleaner

R