I installed 35 year warranty shingles when i built the house 21 years ago.
Lichen roof damage.
It took over a year for all the growth to die dry up and fall off the roof.
Roof moss and lichen are not only unsightly but can damage the roof over time.
Most professional roofers advise that it is possible to do more damage to the roof by trying to remove lichen than the lichen will ever do to harm the roof.
It all starts with a thorough inspection.
Instead of just pushing the algae moss and lichens off your roof with pressure washing which can actually cause even more roof damage our specially designed soaps kill algae moss and lichens while protecting your family pets and the environment.
If you are planning to sell the last thing you want is for buyers to label your home as a fixer upper.
Even if the lichen or moss on roofs isn t causing any real damage yet it will still leave a sour first impression on anyone viewing your home.
Nothing happened for a couple of months.
Our photographs below show a two harbors minnesota asphalt shingle roof with heavy moss and lichens growing on the same surface.
Lichen accumulation on roofs is really a minor problem that will not hurt the roof.
It was only then that damage to the roof granules became obvious.
You can see that comparing the loss of mineral granules where we have gently lifted off moss below left and where we used a knife blade to gently lift off lichens.
Moss damage compared with lichens damage to roofs.
Then slowly the lichens and moss began to turn brown and gray.
Will pressure washing really harm my roof.