To remove moss you first have to kill it.
How do i get green moss off my roof.
There are many ways to remove moss that tends to grow in shaded areas.
However if you choose to remove it yourself do not use a pressure washer to clean the roof.
The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma.
Moss growing on a roof lifts the shingles and allows water to seep underneath and rot the roof deck.
Reader photo by jeanne huber.
However depending on how severe the moss problem is it may not take care of the deeper issue especially if the moss has been around for a while.
A layer of green moss might look cozy and rustic atop your house but it can be bad news for your roof.
Cleaning asphalt shingles of clumps of moss or algae that have taken root in the roof can feel like an overwhelming endeavor.
Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad.
2 slide sacrificial zinc strip underneath the loosened shingles.
Removing moss and algae from a flat roof can seem like a never ending task.
When the moss is dead scrub it off then install zinc flashing to prevent more moss growth.
In this video this old house general contractor tom silva explains how to remove roof moss and prevent it from coming back.
The moss won t come off your roof immediately but within a few days it will dry up and blow off with the wind.
1 slide a margin trowel under shingles to unstick them from the ones below.
We have a green roof.
Moss grows in areas untouched by sun so it can develop at a speedy pace on tree shaded and north facing roofs.
A reader wants to get this moss cleared off an asphalt roof without damaging the shingles.
Follow these three straightforward steps to clean off all moss and keep it from coming back.
Most homeowners will have noticed that their flat roof is regularly invaded by the green pest and while it does no damage to flat roofing materials it can retain moisture which will accelerate wear and tear on the flat roof.
If your roof is pretty well covered in moss you might need to use a leaf blower to get rid blow off the remains.
Use a solution of bleach vinegar or dish soap for this.
They can remove the moss inspect your roof and ensure that the moss does not grow back.
