There are different cleaning methods depending on the source of roof discolouration - blue-green algae leaves black streaks on the roof come from blue-green algae, while moss leaves green patches on the roof. Experts recommend using a garden hose filled with chlorine and water to clean the roof.
Recommended Pros in North York, ON
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Now more than ever, we all play a part in keeping each other safe & healthy. With...Read more Our team of dedicated Roofers work efficiently with the highest degree of attention to detail and quality to ensure a complete...Read more Our mission is your satisfaction. Just as our name suggests, Quality is our utmost consideration, which ensures that every job...Read more BESTFLATROOF is your solution to all of your residential and commercial flat roofing needs.
Recently Reviewed North York Roof
Our interior bathroom ceiling started to pool water. We diagnosed that it came from the roof vent. A company was scheduled to make the repairs October 7th. With the incoming rain we were concerned about more water damage. I contacted...
They did an excellent job from start to finish. We were very impressed with the presentation given by Ash. They took great care not to damage our property while removing the shingles. They moved our garden furniture to a safer...
Our roof was about 17 years old and although it would have probably lasted a few more years my wife and I decided to have it replaced. When I contacted the roofers last year to obtain a quote, Ash...