Roof Repair in Lexington KY Can Include Eradicating Dark Streaks on Shingles

by | Dec 8, 2017 | Roofing

When people think of problems with algae, they might remember seeing a lot of green muck on a pond, or they might have a memory of residential siding with green stains near the bottom in a shady area. When algae grow on roof shingles, it causes black streaks that can be very noticeable. Technicians who provide service for Roof Repair in Lexington KY can get rid of the algae and prevent it from growing there again. Schedule service as soon as it is convenient.

Applying Chemical Spray

Contractors who do Roof Repair in Lexington KY eliminate the algae by spraying it with a chemical solution, such as one containing diluted chlorine bleach with a detergent. Some light scrubbing may be required, depending on the extent of the problem. Roofers generally do not use power washers on shingles because the water velocity can cause damage. The work will also resolve other problems with plant and fungal growth, such as moss and mildew.

Protecting Landscaping

The roofers or the customer will need to protect the landscaping below the eaves, since the plant-killing solution will fall directly underneath. Plants can be covered with tarps or other plastic material. Another possibility is for one of the workers to continually spray the greenery with water from a garden hose to immediately wash away any toxic material.

Future Concerns

It is not necessary to have the shingles replaced as they are not permanently stained. Dark streaks should not develop again for at least a couple of years, at which time the roofer could be contacted again for assistance. Sometimes algae growth does not appear for five or more years after the initial problem is resolved. Trimming back tree branches over the roof can help, as this allows more sun to reach the shingles and keeps them drier.

An additional preventive measure is to have galvanized steel strips installed by a company like Affordable Exteriors after their technicians eradicate the algae. These strips are placed under the ridges. When rain falls, zinc ions from the metal travel down the roof and kill any algae growth that is beginning. Copper strips work too, but they cost more.

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