Black ungainly streaks on the roof can become a really unpleasant sight for anyone looking at your home for the first time. If not cleaned properly, not only will they decrease the curb value of your home, but also give it a slovenly look. 

What Causes These Streaks?

These ugly black streaks are actually a very tough form of algae known in botanical terms as “Gloeocapsa magma.” As this green and blue-colored algae spreads, it develops a dark and hardened outer coating. It is this external coating that is responsible for all those thick black stains running down the roof of your home.  This algae prematurely ages the limestone in the shingles on your roof since it feeds on the limestone present there.

If left to its own devices, the algae will continue to worsen and become even more noticeable over time.  It will start trapping moisture and thereby cause granule loss.  In the long run, you will need to re-shingle your roof if you want to maintain the structural integrity of your property.

However, it doesn’t have to be this way at all.  Not if you hire York, PA roof washing services to do the job for you.  

Power Washing and Chemical Cleaning Services

You can remove dark algae stains by thoroughly cleaning them with the help of a pressure washer. However, you have to be very careful to use the correct settings. If the pressure on your power washer is too high, it will wash away the attractive granular finish of the shingles on your roof. On the other hand, too low a setting would not remove the tough algae at all.

Add to that the fact that simple power washing with water might solve the problem temporarily, but, the algae will return with a vengeance.

You also have to use the right mix of chemicals to eliminate the problem once and for all. You should also remember that asphalt shingles are particularly vulnerable to erosion because of repeated exposure to high power pressure washing. Moreover, the liberal use of harsh chemicals can also damage shingles made of asphalt and other materials of a similar nature.

This is the part where professional York, PA roof washing services come into the picture. These people are the proven experts in this field, and know just which chemicals to use and the amount of pressure required to blast your roof clean in no time at all. They also make sure that the problem is permanently resolved and there is no need to contact them again and again.

Algae Removing Products

Pro power washing services are perfectly aware of the products specifically designed to remove algae stains from your roof. They know exactly what will work best with your roofing material as well as climate conditions.

Conclusion

You don’t have to live with ugly black marks on your roof anymore.  Not when you can get York, PA roof washing services to do the job for you in no time at all, and at a fraction of the cost of buying all the equipment yourself.