Roof Cleaning in Tigard — Killing Moss at the Root, Not the Shingles
JNR's eco-friendly, US-made, no-bleach treatment is built for the 1970s-through-90s composition roofs that make up most of Tigard's housing stock.
A Tigard roof has Tigard problems.
Tigard is a Washington County city of roughly 56,000 people built mostly during the metro's fastest growth decades — most of its housing dates from the 1970s through the 1990s, which means most Tigard roofs are standard three-tab or architectural composition shingle, not the higher-end tile or cedar found closer to the West Hills. Downtown Tigard along Main Street anchors the older core, the Tigard Triangle — the 550-acre wedge bounded by Highway 99W, Highway 217, and I-5 — is being redeveloped into a walkable district, and Fanno Creek runs through the middle of town, its trail connecting neighborhoods to Main Street through 30 acres of Fanno Creek Park.
Comp roofs from that era don't hold up to an aggressive pressure-washing job — the granules that protect the shingle from UV are already thinning after 20-plus years, and high pressure or a straight-bleach treatment strips off more of what's left. Tigard's tree cover isn't as dense citywide as Lake Oswego's or Bull Mountain's, but neighborhoods like Summerlake and the lots around Cook Park still hold enough shade to keep moss coming back, and a roof that's already past 20 years old needs a gentler approach than a newer one can tolerate.
Every service, dialed to Tigard homes.
Roof Cleaning & Eco-friendly Moss Treatment
JNR's eco-friendly, US-made treatment kills moss at the root without stripping the UV-protective granules off a 20-plus-year-old Tigard comp roof — the kind of roof a bleach-and-pressure job ages faster instead of cleaning.
Learn more »Gutter Cleaning & Repair
Fanno Creek-adjacent lots and shaded streets near Summerlake and Cook Park fill gutters with debris every fall; JNR clears them so water isn't sitting against the fascia.
Learn more »Pressure Washing
Driveways, walkways, and siding in Tigard Triangle and Metzger get a soft-wash pass — real cleaning without the pressure that chips paint or drives water behind siding on an older home.
Learn more »Roof Repairs
Flashing, boot, and valley repairs on Tigard's 1970s-90s roof stock get caught during the cleaning, before a small leak turns into a decking replacement.
Learn more »Roof Maintenance Plan
A standing maintenance plan is the cheaper long-term move on an aging Tigard comp roof — steady upkeep instead of one aggressive cleaning every several years.
Learn more »Tree Trimming
JNR trims roof-line branches around shaded Summerlake and Cook Park lots to slow how fast moss reclaims a freshly treated roof.
Learn more »Proof — not promises.
NEARBY WORKTigard doesn't appear by name anywhere in JNR's 251-post blog archive — neither of the company's 2013 service-area lists mentions it. The nearest documented job with real before/after photos sits a few miles northeast in SW Portland, same westside housing stock and tree cover as Tigard's Summerlake and Cook Park neighborhoods.
— SW Portland heavy-moss job, May 2013
Close enough to show up.
JNR runs out of the Happy Valley/east Portland side of the metro. Tigard is about 17 to 18 miles from there — roughly 30 to 35 minutes via I-205 to Highway 217, or I-5 to 99W. It's a longer haul than JNR's Clackamas County core, but a route the crew runs regularly.
The treatment matters here.
Tigard's housing stock is mostly 1970s-through-90s comp shingle — roofs that are past the point where an aggressive cleaning helps more than it hurts. JNR's eco-friendly, US-made, no-bleach treatment is built for exactly that situation: killing moss at the root without accelerating granule loss on a roof that's already 20-plus years into its service life, which is the difference between stretching a roof's remaining years and forcing an early replacement.
Neighborhoods & areas served.
Asked by your neighbors.
Is pressure washing safe for an older Tigard comp roof?
Not usually — most Tigard homes date from the 1970s through 90s, and high pressure strips granules off a roof that's already lost some UV protection. JNR soft-washes instead.
How often does moss come back in Tigard?
It depends on shade — Summerlake and Cook Park lots with tree cover see faster regrowth than open Tigard Triangle-area homes. A standing maintenance visit keeps it from building back up.
Do you clean roofs near Fanno Creek?
Yes — JNR works throughout Tigard, including the Fanno Creek-adjacent neighborhoods, using a treatment that doesn't send bleach or zinc runoff into the creek system.
Does JNR have documented job photos in Tigard specifically?
Not yet in the archive — the closest documented job with real photos is in SW Portland, a few miles northeast, with similar housing and tree cover. Tigard job photos get added as jobs are completed here.
What does a Tigard roof cleaning cost?
It depends on roof size, pitch, and moss level — JNR quotes each Tigard job individually rather than off a flat rate.
Is JNR licensed to work in Washington County?
Yes — Oregon CCB #214684 and Oregon DOA Commercial Chemical Operator #AG-L1056261-CPO cover Tigard and the rest of Washington County. Call (503) 432-9093.
Get your free Tigard roof inspection.
We answer every call. Photo-documented inspection, honest recommendation, no pressure — and if your roof doesn't need us yet, we'll tell you so.