Inspect the roof shingles visually.
Roof shingles lichen.
Another reason to remove lichen growth is your homeowner s insurance rates may increase.
The downside for this option is that copper and zinc are not eco friendly.
The damage can reduce shingle lifespan.
Clean the roof annually.
When this surface moisture freezes in cold temperatures it can lead to frost damage to roof shingles and other exterior surfaces.
How to remove lichen from roof shingles step 1.
The granules aren t just there to color the shingles.
Lichens and moss loosen the granules on the shingle surface exposing the asphalt and fiberglass base materials.
When rainwater moistens the pieces a tiny amount of metal will run down on your roof preventing the lichen from grabbing hold.
Sweep off dirt branches and debris and then wash down the roof surface with a garden.
The lichen can also penetrate your roof s exterior causing the shingles to separate and spell disaster for your roof.
Your insurance company may send out an inspector to drive by your home to observe any changes.
Lichen holds moisture against the surface thus speeding up the wear and tear.
About five years ago i noticed a few patches of lichens growing on the north side of my roof.
Lichen will build up on the north side of buildings and in areas shaded most.
So over time your roof shingles may bend and warp.
Lichen holds moisture in place against surfaces which speeds up normal wear and tear.
Lichens and moss accelerate shingle deterioration by loosening shingle granules and exposing the asphalt and fiberglass base materials.
The lichen can penetrate your roof s exterior causing the shingles to may bleach your asphalt shingles lightening or changing the color.
One of the best ways to remove the lichens on your shingles is to add metal strips made of steel copper and zinc along your roof s ridge.