A couple of years ago i came across a tip in a newsletter that suggested using baking soda to combat moss.
Remove moss from roof with baking soda.
Also power washing is a no no you are removing the grit from the shingles and again lower your roof life.
If you re going to use one of these solutions to remove moss climb down from the roof and cover any landscaping that s in the line of fire with a plastic tarp.
How to remove moss from an asphalt roof.
Products containing d.
I am trying baking soda as it seems to make the most sense.
Wait for a warm dry day and thoroughly coat the moss with the baking soda solution taking care to avoid spraying nearby plants including any turf grass.
I m trying a smaller section on a porch roof that has started to show moss not too much but want to get a handle on it.
An environmentally friendly product that has been effective for moss control on my roof.
Walk around spraying any moss patches with your natural moss killer for lawns.
Cover the moss liberally.
My personal favorite is baking soda which is essentially soda ash or sodium carbonate.
Mix the baking soda and water in a spray bottle and shake until the solution is well mixed.
After blowing apply baking soda at the ridgeline in late summer.
Dry method step 1 sprinkle dry baking soda over moss growing on a hard surface.
A reader wants to get this moss cleared off an asphalt roof without damaging the shingles.
For treatment use baking soda when rain is minimal and allow several weeks for the moss to die.
Add 2 to 3 tablespoons of baking soda to 1 quart of water.
I read the newsletter around the time we moved into our new home which had moss on the roof of the garage that the house inspector recommended we remove.
Baking soda increases the ph which is inhospitable to moss.
Baking soda is alkaline so using it alone may make it more.
Put the solution in a hand held spray bottle for smaller areas of moss.
Baking soda and moss.
Baking soda will raise the ph which moss doesn t like.
Baking soda washes off easily so more than one application may be needed each year.
Apply cleaning solution only after the roof and moss are thoroughly wet.
Moss prefers a growing environment of ph 5 to 6 which is mildly acidic.
Repeat applications may be needed to completely kill the moss.
You want to soak the moss so apply enough cover it thoroughly.
I buy the large bags and sprinkle it on my roof one or two times a year as needed to keep the moss down.