Your Roof Is Rotting From the Outside In
That green layer on your roof or walls looks like a nature vibe. It is not. It is moss, algae or both and they are quietly wrecking your home.
Moss has tiny root-like structures that dig into your shingles. They lift them up. They curl them. They break the watertight seal your roof depends on. Once that seal is gone, water gets in. Then wood rots. Then you get a repair bill that will ruin your month.
Algae is sneakier. It looks like dark streaks or green stains. Most people think it is dirt. It is not. It eats the limestone inside your asphalt shingles and holds moisture against the surface. That constant dampness speeds up deterioration and even raises your cooling costs because dark streaks absorb more heat.
The fix is not complicated. Trim trees that block sunlight. Get a soft wash treatment done. Look into algae-resistant shingles if you are due for a replacement. Do not wait until you see a leak. By then the damage is already deep.
Catch it early. Your roof will last years longer if you do.