Lichen removal
Crusty lichen is treated so it dies and releases from the shingles then wash away over time.
Exterior Services
Roof Cleaning Nutley, NJ
A Nutley roofer can remove dark roof stains, lichen and debris, with tips to keep the streaks from returning. One call to (973) 858-1824 reaches a nearby roofer who handles roof cleaning.
Those black streaks running down a shingle roof are almost always algae, not dirt or mold from inside the house. The algae builds a dark protective coating that absorbs sunlight, which is why the streaks look black and grow down the slope where water runs. It is mostly a cosmetic problem at first, but lichen and moss tend to move in alongside it, and those do damage shingles over time.
How the roof is cleaned matters more than how clean it looks afterward. High-pressure spray tears granules off shingles and can break tile, so the safer method is a soft wash. Soft washing uses a cleaning mix and gentle rinsing to kill algae and lichen, and lets the roof dry naturally.
Some quick observations make the first conversation easier. Look at whether the growth is flat staining, crusty lichen spots or thick moss, and whether it is worse under trees. It also helps to know what is growing beneath the roof edges, since plants are protected during the wash.
Many roof cleaning calls in Nutley also turn up a need for roof moss removal or gutter cleaning.
Looking for Nutley roof cleaning? Call (973) 858-1824 and describe the problem to a roofer who works in Nutley.
Call nowThe process
The roof cleaning process
A roof cleaning protects the house and yard before any solution goes on the roof.
Check the surface
An inspection shows what is growing on the roof and whether any repairs should come first. Damaged shingles are better repaired than washed.
Protect the yard
The crew wets down plants and grass and moves outdoor furniture away from the walls. Siding and windows are rinsed to keep the solution from drying on them.
Apply the soft wash
A cleaning solution matched to the roof material is applied at low pressure, from the bottom of the slope up. Shingles, tile and metal each get a solution suited to them.
Finish the wash
The roof is rinsed at low pressure where the method calls for it, and debris is cleared from valleys and gutters. Heavy lichen can take several rains to wash away fully.
Clean up below
The area below the eaves gets a final rinse to dilute any runoff. This is a good time to ask about preventing regrowth.
What is included
Common roof cleaning work
Metal roof cleaning
Concrete and clay tile roofs are cleaned with care to avoid cracking so the surface is not harmed.
Algae streak removal
Dark streaks on shingles are treated and rinsed without stripping granules.
Valley clearing
Built-up debris is swept off the roof to stop water from backing up.
Regrowth prevention
Zinc or copper strips can be installed near the ridge after the roof is cleaned.
Related service
Roof Soft Wash Nutley, NJ
Soft washing is the low-pressure method used on most roofs, relying on a cleaning solution rather than force. The solution, often a diluted sodium hypochlorite mix with a surfactant to help it cling, kills algae, lichen and moss spores where they grow. Because it kills the growth rather than scraping it off, the roof stays clean longer than with pressure washing.
For Nutley roofs, soft washing is the method most roofers recommend over pressure washing. Plants and grass are watered ahead of time and rinsed again afterward so the runoff is diluted. Expect algae to clear first and crusty lichen to fade over the following weeks.
Related service
Roof Cleaning Service Nutley, NJ
Professional roof cleaning covers prep, treatment, debris removal and cleanup, done from a ladder or with roof safety gear. A wet, treated roof is extremely slippery, which is why roof cleaning is not a good do-it-yourself job. While cleaning, a roofer can flag loose shingles, cracked tiles and failing pipe boots.
Many Nutley roof cleanings end with clearing the gutters and downspouts. Adding zinc strips along the ridge is a common way to stretch the time between cleanings. More sun and air on the roof means less growth.
Local help
Roof Cleaning Near Me
Around Nutley, most roof cleaning requests start with dark algae streaks on the shaded side of the house. Across Nutley and nearby communities including Glen Ridge, Rutherford, North Arlington and Clifton, roofs near tall trees and in shady lots are the ones that need cleaning most often, so a gentle cleaning every few years keeps the roof looking right without wearing it down.
Need roof cleaning around Nutley? Call (973) 858-1824 for a Nutley roofer who serves the towns around it too.
Roofs in this climate
Cold winters bring snow, ice and a long stretch of freezing nights. When warm attic air melts the snow, the meltwater runs down and freezes again at the eaves, building ice dams that push water up under the shingles. Strong coastal storms push rain into every weak spot at the flashing and valleys. Most homeowners in Nutley, NJ have the roof checked in the fall and again after the snow melts.
Why call
Why act early
Smaller repairs
Small roof problems caught early usually stay small repairs.
Roofers who know Nutley
Roofers in Nutley know the roof types and weather wear common in local homes.
Straight answers
Ask your questions before you agree to anything.
Roof Cleaning FAQ
How often should a roof be cleaned?
The schedule depends on how fast growth returns. Shaded roofs and roofs near trees grow algae and lichen faster. Preventive strips help keep the roof clean longer.
How are plants protected during roof cleaning?
Good roof cleaners pre-wet and rinse landscaping to dilute any runoff. Delicate plants can be covered, and downspouts can be directed away from beds. Let the roofer know about delicate gardens so they can plan.
Can I pressure wash my roof?
A pressure washer does more harm than good on shingles. It wears down the surface that protects shingles from the sun. Ask for a soft wash instead.
Does roof cleaning make my roof last longer?
Removing lichen and moss helps the roof last, since both hold moisture and work under the shingle edges. A clean roof also lets a roofer spot damage that grime was hiding. The benefit depends on using a soft wash.
What causes black streaks on my roof?
Those dark stains are almost always airborne algae, not dirt. It thrives in shade and moisture and spreads down the slope with rainwater. Shade, trees and humidity all make it worse.
More questions? Call (973) 858-1824
Often needed together
Roof Moss Removal
Removing moss from shingle, shake and tile roofs without tearing up the roofing, with zinc or copper strips to keep it from coming back.
Learn moreGutter Cleaning
Gutter cleaning that clears leaves, needles and sludge by hand, then flushes the gutters and downspouts, with a check of the seams and hangers along the way.
Learn moreRoof Maintenance
Regular upkeep that keeps small roof problems from becoming leaks, so the roof reaches the end of its expected life.
Learn moreCedar Shake Roof Repair
Cedar roof repairs from single cracked shakes up to worn ridge caps and open valleys, matched to what a close look at the roof actually finds.
Learn more
Looking for something else?
See all roofing servicesTalk to a Nutley roofer about roof cleaning
Call (973) 858-1824 for a local roofer in Nutley and nearby towns.