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Why Roof Cleaning Matters in the Pacific Northwest

  • Writer: gannscleaning
    gannscleaning
  • Apr 30
  • 2 min read

Updated: 5 days ago

If you live here in the beautiful Pacific Northwest, you already know — we get a lot of rain.

And while all that moisture keeps everything lush and green, it’s also the perfect recipe for something not so great: moss, algae, and lichen growing on your roof.


Why You Want Your Roof Cleaned

Your roof isn’t just there to look pretty it’s your home’s first line of defense against the elements. But when moss and algae take over, they trap moisture right against your roof, causing rot, leaks, and expensive damage.

Plus, a dirty, mossy roof can seriously hurt your home's curb appeal and even lower its value. (Nobody wants to buy a house with a green furry roof, trust me.)


How We Clean Your Roof the Right Way!

Not all roofs are created equal, and neither are the ways we clean roofs in the Pacific Northwest

Composite and Cedar Shake RoofsWe don’t go crazy with pressure washing here because it can actually do more harm than good. Instead, we brush the roof  and clear all debris off, then we use a professional treatment with the active ingredient Zinc Sulfate Monohydrate  a white powder that's safely applied to kill moss, algae, an


Split image shows roof cleaning: left half mossy and dirty (Before), right half clean and brown (After). Text: "GANNS CLEANING".

d lichen.It works gently over time, letting nature (and the rain!) rinse it all away.

Metal RoofsMetal roofs are tough, so we pressure wash them with care to blast off moss, algae, dirt, and debris.The result? A roof that looks brand new — without a single speck of green fuzz!


Split image showing a blue metal roof. Left: gutter filled with debris. Right: debris cleared. Background: trees and lawn. Bright setting.

What Happens If You Don’t Clean Your Roof?

Bad news, my friend:

  • Moss roots can dig under your shingles, lifting them up and letting water sneak inside.

  • Algae and lichen can stain and slowly eat away at your roofing materials.

  • Extra weight from soggy moss can stress your roof structure.

  • Leaks can lead to expensive repairs — or even total roof replacement.

Skipping roof cleaning now could cost you thousands later. (Ouch.)


The Positives of Getting Your Roof Cleaned

It’s not just about avoiding bad stuff there’s a whole lot of good stuff too:

Extend Your Roof’s Life — Regular cleaning can add years to your roof’s lifespan.

Boost Curb Appeal — Your home will instantly look fresher, newer, and better cared for.

Protect Your Investment — A clean roof keeps your home structurally sound and protects its value.

Peace of Mind — No moss. No leaks. No "uh-oh" surprises when the rainy season kicks in.

Taking care of your roof isn’t just smart it’s essential, especially here in the PNW where nature loves to take over!

Ready to give your roof the TLC it deserves?Reach out today — we’ll make sure your roof stays strong, clean, and worry-free for years to come!

 
 
 

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