A roof-repairs-contractor can also help you deal with the unsightly problem of black streaks on your shingles. These streaks are actually a type of hardy algae that feeds on the limestone filler in the shingles. While it’s mostly an aesthetic issue, it can lead to premature aging if left untreated. Professionals use specialized, low-pressure chemical washes to kill the algae without d... https://kkroofspecialist.com.sg/roof-repairs-contractor/