What Is Roof Cleaning and Moss Removal?
Roof cleaning and moss removal clears biological growth — moss, Gloeocapsa magma algae, and lichen — from a roof with a low-pressure chemical wash that kills the growth at the root. It relies on chemical action rather than pressure washing, which strips the protective granules.
What Roof Cleaning and Moss Removal Is Available in Bloomfield?
Newark Quality Roofing cleans moss, Gloeocapsa magma algae, and lichen from Bloomfield roofs across the township's pre-war Colonials, Dutch Colonials, and Capes and its flat-roofed two-family homes and garden apartments. A cleaning applies a chemical wash at low pressure to kill the growth at the root and rinses the dead material away without stripping the protective granules.

Moss, Gloeocapsa magma algae, and lichen establish on the shaded, moisture-holding slopes of an older streetcar suburb, because north-facing and shaded slopes hold moisture and grow moss faster, per CSSB and NRCA guidance. Brookdale's mature street-tree canopy and the leaf litter that collects in valleys and at roof-to-wall transitions create the nutrient-rich conditions where colonies take hold, per ARMA algae-and-moss guidance.
The low-pressure chemical wash kills the growth rather than blasting it off, because ARMA states that pressure-washing an asphalt shingle roof causes granule loss and premature failure of the roof system. A Newark Quality Roofing wash applies the ARMA 50:50 mix of laundry-strength liquid chlorine bleach and water, holds it for the 15-to-20-minute dwell ARMA specifies, and finishes with a low-pressure rinse on the pre-war Colonial and Cape stock of Bloomfield Center, Watsessing, and Brookdale.
Commercial low-slope cleaning along the Broad Street, Bloomfield Avenue, and Garden State Parkway corridors matches the chemistry and rinse to EPDM, TPO, and modified-bitumen membranes, where biological growth that holds moisture against the membrane accelerates deterioration. A Newark Quality Roofing crew manages drainage during the rinse so the cleaning solution does not pond on the low-slope membrane.
What Roof Cleaning and Moss Removal Problems Are Common in Bloomfield?




Thick green moss on Bloomfield's shaded Colonial and Cape slopes lifts and curls the shingle leading edges and raises the risk of wind blow-off, per ARMA, and severe build-up moves water laterally to the roof deck. A Newark Quality Roofing crew removes heavy moss by hand before the wash, then treats the remaining growth at the root.
Granule loss under streaked and mossy areas marks how far the wear has advanced, because granule loss exceeding roughly 30% of the surface is the common rule-of-thumb for beyond repair, per GAF and InterNACHI. A Newark Quality Roofing pre-cleaning assessment rates the roof-covering condition first, because a severely worn covering can sustain further damage from even a low-pressure cleaning and is better budgeted toward replacement.
Landscape and gutter protection governs the wash on Bloomfield's tree-canopied lots, because the ARMA solution is laundry-strength bleach at a 50:50 mix and the runoff carries dead growth and granule debris into the gutters. A Newark Quality Roofing crew pre-wets and covers plantings beneath the roof edge before application and clears the gutters and drains during the rinse so debris does not overflow.
Recurring growth returns on permanently shaded Bloomfield slopes that the tree canopy keeps damp, so a single cleaning is a maintenance event rather than a permanent fix. A Newark Quality Roofing maintenance wash holds growth back between cleanings, because proper maintenance extends asphalt-shingle service life by roughly 25-30%, per ARMA.
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Clearing moss and algae early protects the shingle granules and the roof deck from moisture damage.
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What Is Our Process for Roof Cleaning and Moss Removal in Bloomfield?

Newark Quality Roofing identifies the growth, rates the roof-covering condition, and protects the property before the wash. A technician identifies the growth as moss, Gloeocapsa magma algae, or lichen and rates the covering, because granule loss exceeding roughly 30% of the surface marks a roof beyond cleaning, per GAF and InterNACHI, then pre-wets and covers the plantings beneath the roof edge on Bloomfield's canopied lots.

Newark Quality Roofing removes heavy moss by hand, then applies the ARMA low-pressure chemical wash from ridge to eave. A crew removes thick moss first, because moss lifts and curls the shingle leading edges and raises the risk of blow-off, per ARMA, then applies the ARMA 50:50 laundry-strength chlorine-bleach-and-water solution, holds it for the 15-to-20-minute dwell ARMA specifies, and finishes with a low-pressure rinse rather than a pressure washer that strips granules.

Newark Quality Roofing rinses the dead growth clear, clears the gutters and drains, and recommends a maintenance schedule. A low-pressure rinse carries away the killed growth, and the crew flushes the gutter system so debris does not overflow. On a roof replacement Newark Quality Roofing installs copper or zinc strips to inhibit regrowth, because ARMA does not recommend adding strips to an existing roof, where exposed nails cause leaks or break the sealant bond.
How Much Does Roof Cleaning and Moss Removal Cost in Bloomfield?
$300–$1,050 for most cleanings
Roof cleaning runs $0.20–$0.70 per square foot, an average of $675 for a 1,500-square-foot home, per This Old House; a moss-prevention treatment adds $150–$250. Newark Quality Roofing provides a free written estimate.
Why Choose Our Roofing Company for Roof Cleaning and Moss Removal in Bloomfield?
- Specialized roof cleaning and moss removal experience in Bloomfield — we know the local building stock, codes, and common issues specific to Bloomfield homes and businesses.
- A registered New Jersey Home Improvement Contractor, fully insured for roof cleaning and moss removal work throughout Essex County.
- Transparent, written estimates for every roof cleaning and moss removal project — no hidden fees and no pressure to commit.
- A local Bloomfield crew familiar with the area's permitting and property-access challenges.