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How do I remove moss from my roof?

PABCO® recommends cleaning moss from your roof by killing the moss with an application of a 50:50 mix of liquid chlorine bleach and water.  

This is sprayed onto the surface of the moss with a low-pressure sprayer, like a garden weed sprayer. Allow the solution to dwell on the surface (15 to 20 minutes) and then rinse thoroughly with low-pressure water. Extended dwell times may be necessary to kill the moss, however avoid letting the solution dry completely as this may prevent complete rinsing. After the moss is dead, it will weather off. 

Do not use abrasive cleaning methods such as pressure washing or the use of a brush or broom.

See the PABCO® Technical Bulletin on Recommended Maintenance Practices for additional details and related information.


How do I remove black stains from my roof?

The black stain that grows and spreads on a roof is typically algae. PABCO® recommends cleaning algae from your roof by killing it with an application of a 50:50 mix of liquid chlorine bleach and water.  

This is sprayed onto the surface of the algae with a low-pressure sprayer, like a garden weed sprayer. Allow the solution to dwell on the surface (15 to 20 minutes) and then rinse thoroughly with low-pressure water. 

Do not use abrasive cleaning methods such as pressure washing or the use of a brush or broom.

See the PABCO® Technical Bulletin on Recommended Maintenance Practices for additional details and related information. 


Connelly's Roofing | Contractor Spotlight

PABCO® Roofing Products is proud to introduce you to another Preferred Contractor,Connelly’s Roofing, for our December 2014 Contractor in the Spotlight. Connelly’s Roofing is a successful small bus...

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