Search

Blue, green or black stains on a bitumen shingle roof are mostly caused by algae. These algae staining begins with small spots. Over time these spots can develop into streaks. Algae stains are often mistaken for mold or mildew. Algae may hurt the appearance of your shingles roof, but other than that it is not harmful at all.

Replacing the traditional bitumen by APP modified bitumen will grant Armourglass PLUS, Victorian PLUS and Diamant PLUS roof shingles with even more high end properties. We will therefore label these CE branded shingles in future with a PLUS.  After all, you will be getting improved quality at same price. The plus range that IKO offers, is a great advantage you can take of!