Bleach solution that drips from your roof during or after application can kill landscape plants and ruin outdoor fabrics.
Roof lichen bleach.
True to its name chlorine bleach may bleach your asphalt shingles lightening or changing the color.
A heavy spray of solution will kill the lichens and moss but results take time.
Solutions range from one cup tsp and one gallon of bleach per five gallons of water to one cup tsp and 2.
Although it s an inexpensive option to remove lichen from your roof the end result may corrode downspouts gutters and flashings.
Once applied the wet forget starts to work on the surface and then over time will remove the dead lichen with exposure to the wind and rain.
Wait 15 minutes and then repeat the application a second time.
Chlorine bleach may be applied to your gutter and flashing or your shingles to change the color.
My roof has skid marks.
Chlorine bleach will kill roof moss but when you rinse if off the roof it may kill the plants growing alongside your house too.
Scrub the moss and lichen from the roof with a long handled scrub brush.
If your moss problem is extensive and you plan to use a large quantity of chlorine bleach bear in mind that it will accelerate the corrosion of your metal gutters and downspouts.
For smaller areas you can use a toothbrush with a bleach solution.
Get a scrubbing brush and water to gently brush the lichen off.
8 spray the cleaning solution onto the shingles using a garden sprayer.
To apply thoroughly saturate the surface with the wet forget outdoor cleaner.
Do not let the bleach solution remain on the roof any.
Another way of removing lichens from the roof is through using chlorine bleach.
Mix 1 cup of bio degradable liquid dishwashing soap and 1 cup powdered oxygen bleach in 5 gallons of water and apply to lichen prone areas with a push broom brush or hand scrubbing brush.
Commercial chemical preparations though costly have proven effective.
I used a pump sprayer and applied a heavy mist to the roof two times about an hour apart.
6 to kill existing moss and lichen make a cleaning solution of equal parts bleach and water.
Rinse with clear water.
Space between the strips.
Allow the bleach solution to remain on the roof for 10 to 15 minutes.
Always use a soft bristle brush as not to damage the surface where the lichen clings.
Next thing you know it could grow a mossy beard.