Remarkable Roof Cleaning in Portland & Vancouver
Moss is one of the most common roof problems in the Pacific Northwest. Left alone, it lifts shingles, traps moisture, and shortens your roof’s life. We remove it by hand, clean the debris, and treat your roof to keep it from coming back.
Make the Right Decision for Your Roof
Why Moss is a Serious Problem for Your Roof
Portland and Vancouver get over 40 inches of rain a year. Add mild winters, shaded lots, and a tree canopy, and you’ve got ideal conditions for moss to grow. It roots itself into and under your shingles, lifting them and creating gaps where water gets in. It strips the protective granules off asphalt shingles, holds moisture against the roof deck, and adds weight your roof wasn’t designed to carry. Over time, that leads to wood rot, leaks, and expensive repairs.
Manual Cleaning, No Pressure Washing
Hand brushing and air blowing remove moss without damaging shingles or stripping granules. Also called soft washing, this method is preferred by insurance companies and manufacturers.
Preventative Treatment Included
After cleaning, we apply a moss-preventative treatment to your roof surface to slow regrowth and protect your shingles between visits.
Affordable Roof Protection
Regular cleaning costs a fraction of what you’d spend on repairs from moss damage. It’s one of the simplest ways to extend your roof’s life in the PNW.
Roof Cleaning in Three Steps
How We Clean & Treat Your Roof
Our process is simple, thorough, and designed to protect your shingles while getting rid of moss for the long term.
01
Moss Removal & Debris Cleaning
We start by manually brushing moss off the shingle edges and surfaces using stiff brushes, then blow loose debris from the entire roof with commercial-grade blowers. This removes most of the moss without damaging your shingles.
Hand brushing removes moss without stripping protective granules
Air blowing clears leaves, pine needles, and loose debris from valleys and edges
No pressure washing. We never use methods that damage asphalt shingles.
02
Gutter & Downspout Clearing
Moss and debris from your roof end up in your gutters. We clear everything out of your gutters and downspouts so water can drain properly. Clogged gutters cause water to back up under your shingles and along your fascia, which leads to rot and leaks.
All gutters cleaned and flushed as part of the roof cleaning service
Downspouts checked for blockages and cleared
Debris is removed from the property, not left on your lawn or landscaping
03
Moss-Preventative Treatment
Once your roof is clean, we apply a moss-preventative treatment across the entire roof surface. This treatment kills off any remaining moss spores and creates a barrier that slows future growth, keeping your roof cleaner and healthier between cleanings.
Treatment is applied to all roof surfaces after the cleaning is complete
Kills remaining moss and algae spores that brushing can’t reach
Helps extend the time between cleanings so that you get more value from each visit
Moss on Your Roof? Let Us Take Care of It
No appointment needed when you use our free satellite roofing calculator. Get accurate pricing in minutes from anywhere on any device.
(503) 766-3728
Proud of Our 5-Star Reviews
What Our Remarkable Customers Have to Say
Guaranteeing Your Great Experience
Being Remarkable Means Doing Things Right
Home and business owners choose Remarkable Roofing because we make the process straightforward and stress-free. We’re committed to providing you with honest assessments, clear pricing, and professional crews who respect your time and your property. No pressure or shortcuts, just dependable roofing backed by experience and accountability.
W-2 Employees, Not Subcontractors
Better quality control, accountability, and consistency on every project.
Built for the Pacific Northwest
We understand what PNW roofs endure because we live here, too. Every recommendation is informed by what actually works in our climate.
Respectful on Every Property
From single-family homes to occupied senior living facilities, our crews treat your space like their own.
Examples of Our Previous Work
Remarkable Project Gallery
PORTLAND
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Spring 2025
VANCOUVER
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Summer 2025
LAKE OSWEGO
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Spring 2025
LAKE OSWEGO
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Winter 2026
FAQs
Frequently Asked Questions About Our Roof Cleaning Process
Straight answers to the questions we hear most about keeping moss off their roofs.
Why is moss so common on roofs in Portland and Vancouver?
The Pacific Northwest gets heavy rainfall, mild temperatures year-round, and a lot of shade from mature trees. That combination creates the perfect environment for moss. North-facing slopes and shaded sections of your roof are usually the first to develop growth. Most homes in the Portland and Vancouver area will get moss at some point if the roof isn’t treated preventatively.
Can moss actually damage my roof?
Yes. Moss roots itself into and under shingles, which lifts them and creates gaps for water to get underneath. It also strips the protective granules off asphalt shingles, retains moisture directly against the roof surface, and adds weight that your roof structure wasn’t designed to carry. Over time, that leads to wood rot, leaks, and a shorter lifespan for your roof.
Why don't you pressure wash roofs?
Pressure washing blasts the protective granules off asphalt shingles. Those granules are what shield the asphalt from UV damage and weather. Removing them shortens your roof’s life and can void your shingle warranty. Soft washing at low pressure and manual brushing removes the moss without causing damage. It’s the method recommended by most shingle manufacturers and preferred by insurance companies.
How often should I have my roof cleaned?
Every 2 to 3 years is a good baseline for most homes in Portland and Vancouver. If your roof is heavily shaded, has a lot of tree coverage, or faces north, you may need more frequent attention. Regular cleaning and treatment is the most cost-effective way to prevent moss from causing damage that leads to expensive repairs or early replacement.
Get a Free Quote for Your Next Roofing Project
Whether you need a quick repair, a Roof Maxx treatment, or a full replacement, hit the button below to get started with a free estimate today.
