Rinse with clear water.
Roof lichen bleach.
Get a scrubbing brush and water to gently brush the lichen off.
Do not let the bleach solution remain on the roof any.
I used a pump sprayer and applied a heavy mist to the roof two times about an hour apart.
Although it s an inexpensive option to remove lichen from your roof the end result may corrode downspouts gutters and flashings.
5 continue installing zinc strips across length of roof end to end leaving a 1 8 in.
To apply thoroughly saturate the surface with the wet forget outdoor cleaner.
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.
Solutions range from one cup tsp and one gallon of bleach per five gallons of water to one cup tsp and 2.
Allow the bleach solution to remain on the roof for 10 to 15 minutes.
A heavy spray of solution will kill the lichens and moss but results take time.
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.
Chlorine bleach will kill roof moss but when you rinse if off the roof it may kill the plants growing alongside your house too.
Bleach solution that drips from your roof during or after application can kill landscape plants and ruin outdoor fabrics.
For smaller areas you can use a toothbrush with a bleach solution.
My roof has skid marks.
Chlorine bleach may be applied to your gutter and flashing or your shingles to change the color.
6 to kill existing moss and lichen make a cleaning solution of equal parts bleach and water.
True to its name chlorine bleach may bleach your asphalt shingles lightening or changing the color.
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.
Always use a soft bristle brush as not to damage the surface where the lichen clings.
Another way of removing lichens from the roof is through using chlorine bleach.
Next thing you know it could grow a mossy beard.
Wait 15 minutes and then repeat the application a second time.
7 protect nearby shrubs and lawn with plastic tarps.
8 spray the cleaning solution onto the shingles using a garden sprayer.
Commercial chemical preparations though costly have proven effective.
