Question 1

Do I have to replace my roof if it is covered in moss?

Accepted Answer

Usually not, and it is worth finding out before spending on a roof. Moss and algae live on the surface; whether the shingle underneath is finished is a separate question answered by granule loss, cracking, curling and the age of the roof. A heavily fouled roof that is fifteen years old and still holding its granules is a cleaning job. One that is twenty-five years old with bare asphalt showing through is not, and cleaning it will not add years. The distinction is worth having assessed by someone trained to read shingle damage rather than guessed from the driveway.

Question 2

Does black algae staining actually damage my roof, or is it just how it looks?

Accepted Answer

On its own, algae isn't eating your shingles — the Asphalt Roofing Manufacturers Association states there's no scientific evidence algae damages asphalt shingles. It is a real cosmetic and resale-value issue, and on lighter or reflective "cool roof" shingles it can reduce reflectivity, which affects energy costs. Left untreated is also what allows moss and lichen to develop next.

Question 3

Green fuzzy growth is on my shingles. Is it actually hurting the roof?

Accepted Answer

Yes, more than the black streaking is. Moss is a true plant, and it anchors with rhizoids that work down into the granule layer. The mat holds water against the shingle, and in a freeze-thaw climate that trapped moisture expands and contracts repeatedly right where the moss has rooted, which accelerates cracking and granule loss. Heavy moss can also lift and curl shingle edges, which raises the risk of wind damage and lets water travel sideways under the course. It is worth treating well before it looks alarming.

Question 4

How do you get moss and lichen off a roof?

Accepted Answer

Moss and lichen are treated with a low-pressure soft wash solution that is left to work on the growth, not scraped, blown, or pressure-washed off. Lichen in particular anchors into the shingle surface, so it releases gradually over the following weeks with rain and weather rather than vanishing the day we leave. Scraping or high pressure would take shingle granules with it and shorten the roof’s life, which is why we don’t use them. Dislodged growth ends up in the gutters, which is why roof soft washing includes clearing out the trough and flushing the downspouts rather than treating that as an add-on. Leaving packed debris in place would just let it wash back out over everything that was cleaned.

Question 5

How long before black streaks come back after a roof cleaning?

Accepted Answer

They should not come back for years, and there is a warranty on it. Black streaking is algae, and a soft wash kills it at the root rather than rinsing it off the surface. If black streaking returns on a full roof soft washing within two years, the affected area is re-treated at no charge. Two conditions are excluded because they re-seed growth continuously no matter how well the roof was cleaned: heavy overhanging tree cover, and areas where water pools rather than draining. Both get pointed out before the work rather than after.

Question 6

I have a mid-century ranch on Canton's north side. What actually needs doing?

Accepted Answer

Usually two things, and they are different jobs. The shaded roof slope carries algae streaking on asphalt shingle, which is a low-pressure soft wash and nothing else — walking or pressuring a shingle roof costs you shingle life. The siding on the elevation that has faced south for forty years is often chalky oxidation rather than dirt, meaning the finish itself has broken down, and a plain rinse only wets it down. Oxidation treatment is what corrects that. We tell you on the walk-through which of those two you actually have, because they carry different prices and different outcomes.

Question 7

Is roof cleaning safe for my roof?

Accepted Answer

A roof-cleaning method should match the roof material and condition. SurfaceWorks ProWash evaluates the roof before service and uses a low-pressure approach for applicable roofing materials rather than high pressure on standard asphalt shingles.

Question 8

My Akron roof has moss and lichen, not just black streaks. Will it look clean right away?

Accepted Answer

Not immediately, and we explain that on site so the result is not a surprise. Sand Run and the gorge keep humidity high enough that shaded roofs here grow lichen and moss rather than just algae. Lichen has a root-like hold on the granule surface, so it has to be killed and then left to release on its own schedule with weather — scrubbing or pressuring it off takes granule with it and shortens the roof's life. That means an Akron roof can keep improving for weeks after we leave. The timeline is part of the estimate, not just the price, so you know what to expect at day one and at week four.

Question 9

My lot is heavily shaded and the green growth keeps coming back. What can be done about it?

Accepted Answer

Shade and tree cover keep surfaces damp longer, and damp plus low sunlight is exactly what algae, moss, and lichen need, so growth returns faster on wooded lots than on open ones. Cleaning removes what is there now; staying ahead of it means a shorter interval between washes, generally yearly or better on the north and tree-facing sides. Trimming branches back off the roof and keeping gutters clear slows it down by letting surfaces dry. We can size a recurring schedule to how fast your property actually regrows instead of a generic interval.

Question 10

My roof looks fine from the street but I was told it has algae. Which is it?

Accepted Answer

Both can be true, and on the newer Uniontown houses that is common. Architectural shingle roofs on wide, complex rooflines hold moisture in the valleys and on the north planes, and that is where the first algae establishes while the rest of the roof still looks new. So the visible face of the roof is the last place to check, not the first. We look at the valleys and shaded planes on the walk-through and tell you whether you are looking at early growth worth treating now or a roof that can wait — treating early is cheaper and easier than treating a fully streaked roof later.

Question 11

My roof still has some streaks a week after you cleaned it. Did it not work?

Accepted Answer

Almost certainly it did, and this is the single most common question about roof work.

Algae rinses away relatively quickly. Moss and lichen do not — they anchor into the shingle surface, so they are killed rather than removed, and then they release gradually over roughly four to six weeks as rain and weather work the dead growth loose. A roof one week out is partway through that, not finished.

Scraping or pressure-washing them off instead would take shingle granules with them, and granules are the roof's UV protection. That trade — a faster result for a shorter roof life — is not one worth making, and every major shingle manufacturer specifies against it.

The guarantee is built around that timeline: 60 days on roof soft washing rather than the 14 that applies elsewhere. If the roof has not come around by then, it gets re-treated at no charge.

Question 12

My roof was cleaned a year ago and the streaks are already back. Why?

Accepted Answer

That points at conditions rather than at the cleaning. Black roof streaking is a cyanobacteria that spreads by airborne spores, so a roof under heavy tree cover, on a shaded plane, or downwind of a neighbor''s untreated roof gets recolonized far faster than an open sun-exposed one. Two things change the interval: clearing the overhanging branches that keep the plane damp, and a post-treatment that leaves the surface inhospitable for longer than a plain wash does. A roof in a bad position may genuinely need a shorter cycle than the house it sits on.

Question 13

The moss is still on my roof a week after cleaning. Did it not work?

Accepted Answer

It worked — moss and lichen do not disappear on the day. The treatment kills the organism at the root, and the dead growth then releases gradually as rain and wind work on it, typically over four to six weeks depending on how heavy it was. Black algae staining lifts much faster and is usually visibly better within days. The reason it is done this way rather than scraped or blown off is that the dead growth is still gripping shingle granules, and forcing it loose early takes those granules with it.

Question 14

There are crusty gray-green patches on my shingles that look painted on. What are they?

Accepted Answer

That is lichen, and it is the most stubborn organism that grows on a roof. Lichen is a fungus and an alga living together, and the fungal filaments grip the mineral granules directly rather than resting on the surface. That bond is why it cannot be brushed, blown or pressured off without taking granules with it — removing lichen by force removes roof life. It is treated in place and allowed to release on its own over several weeks of rain and weather, which is slower to look at but is the only method that leaves the shingle intact.

Question 15

What's the difference between black roof streaking and moss or lichen?

Accepted Answer

Black streaking is algae, and the Asphalt Roofing Manufacturers Association is direct that there's no scientific evidence it damages asphalt shingles on its own. Left untreated, though, it helps create the conditions moss and lichen need to take hold next, which is a further stage in the same progression.

Question 16

Why does my 1970s Stow roof streak so badly on one side?

Accepted Answer

Because asphalt roofs on shaded north planes streak black with gloeocapsa growth, and on a low-pitch roof from that era the growth holds moisture against the shingle rather than shedding it. That is not just an appearance problem — moisture held against shingle is what shortens its life. The method is low-pressure soft washing that kills the growth and lets it release; walking or pressuring a roof that age takes granule off and is how a cleaning turns into a roofing conversation. We look at the shaded plane first and tell you what will clear and how long it takes.

Question 17

Why does my Carrollton ranch get dirty at the bottom of the siding?

Accepted Answer

Because ranches sit low and wide, which puts the siding right against splash-back staining from the drip line and growth coming off the mulch bed. That lower band is often the only genuinely dirty part of the house, and it responds well to treatment aimed at organic growth rather than a full-pressure pass. The other ranch-specific item is the roof: broad asphalt roofs streak early here because the rooflines are shallow and stay damp longer after rain. Soft washing is the only correct method on shingle, and on a shallow roof it is worth doing sooner than you would on a steep one.

Question 18

Why does my Mansfield ranch roof streak worse than my neighbor's two-story?

Accepted Answer

Pitch. Ranchwood and the post-war ranch streets have broad, shallow asphalt roofs that hold moisture rather than shedding it quickly, and moisture held on shingle is what lets algae establish and streak. A steeper roof dries faster and streaks later. So on a shallow roof it is worth soft washing sooner than you would on a steep one, both for appearance and because growth holding moisture against shingle shortens its life. Those houses usually also carry original siding and concrete of the same vintage, which we quote as separate items rather than one number.

Question 19

Why does only one side of my roof have the dark streaking?

Accepted Answer

Because that is the slope that stays damp. The community sits on 381 acres of mature former farmland, and the shaded and north-facing slopes on asphalt shingle hold moisture long enough for algae to establish while the sun-facing slope dries out and stays comparatively clean. It is a living organism, not dirt, which is why rinsing accomplishes nothing lasting and why the fix is a low-pressure soft wash treatment that kills it rather than pushes it around. It is also why the roof is never a pressure job: walking and pressuring shingle costs you shingle life, and on a roof this age that is a genuinely expensive trade for a cosmetic result you could have had safely.

Question 20

Why is there moss on my roof and siding near the river?

Accepted Answer

Tree canopy plus river humidity. The Broad Boulevard Historic District's early-1900s houses sit under enough canopy that north-facing roofs and shaded siding grow moss and lichen rather than just algae, and lichen on old shingle has to be treated and left to release rather than forced off. That means results continue to improve for some weeks after the visit rather than finishing the day we leave. On the houses themselves — bungalows, Cape Cods and Colonial Revivals with painted wood and older masonry near Mud Brook and the business district — it is soft wash at low pressure, with careful rinse control around porch decking and railings.

Question 21

Will my roof look completely clean the day you finish?

Accepted Answer

Black algae staining generally clears quickly, but moss and lichen die off and release gradually, so a roof often keeps improving for several weeks after service. Where lichen had a strong hold you may see lighter shadowing or slightly different granule color underneath, and that is the shingle itself rather than remaining growth. We walk the results with you and say plainly what is still working versus what is as clean as that shingle is going to get.

Question 22

Can one visit handle both algae and rust or oil staining on my property?

Accepted Answer

Yes, and in Kent that is common, because one driveway can hold two completely different problems. Under the canopy the issue is organic growth on period detail. Near the old Normal College campus and the industrial stretch along the Cuyahoga it flips to rust bleed and oil staining — a different product and a different dwell time on the same visit. We identify which surfaces belong in which category on the walk-through before a number is attached to either, then sequence the visit so the stain treatment gets the dwell time it needs rather than being rushed to finish the general cleaning.

Question 23

Can you clean a vinyl or wood fence?

Accepted Answer

Yes. Vinyl, wood and composite fencing all collect green algae and mildew on the shaded side, and it comes off with a low-pressure wash and a solution matched to the material. Wood is worked with the grain so boards are not furred up, and old stain or paint that is already failing will not survive a wash — that gets identified before starting rather than discovered during. Fence work is quoted per property rather than from a published table, because run length, height and both-sides access vary too much to band sensibly.

Question 24

Can you wash a two-story or three-story house?

Accepted Answer

Yes. Upper stories are washed from the ground with low-pressure soft wash equipment that carries the solution up to the surface, which is safer for the house and for us than working a whole elevation off ladders. Height, roof pitch, landscaping, and access are all reviewed during the estimate because they change the plan and the time on site. A section that genuinely cannot be reached safely is identified during the estimate rather than discovered on the day — and on a three-story elevation the limiting factor is usually the ground beneath the reach point, not the height itself.

Question 25

Do you clean fences?

Accepted Answer

Yes. Vinyl, wood, and composite fencing all collect green algae and mildew on the shaded side, and that comes off with a low-pressure wash and a solution matched to the material. Fencing is measured by run and by side, so tell us whether you want one side or both when you request an estimate. It is commonly added to a house wash while we are already on the property.

Question 26

Do you guarantee your work?

Accepted Answer

Yes, on two different timelines, because roof work does not finish on the same clock as everything else.

On any surface other than a roof: if you are not satisfied with something we cleaned, tell us within 14 days and we will come back and re-clean it at no charge. Fourteen days rather than a week on purpose — most people do not look properly until the following weekend, and a rain in between makes anyone doubt the result.

On roof soft washing: 60 days. A roof keeps improving for four to six weeks after the visit as the treated moss and lichen lose their grip and release with rain and weather. Judging a roof at two weeks would be judging it half-finished. If it has not come around within 60 days, it gets re-treated at no charge.

What the guarantee does not cover is anything cleaning cannot correct: oxidized or chalked finishes, concrete scaling where the top layer has already broken loose, failed paint or stain, and rust with an active source still feeding it. Those get identified on the walkthrough and stated before any work begins, so nothing on that list is a surprise afterward.

Question 27

Do you offer recurring or seasonal maintenance plans?

Accepted Answer

Yes. Many residential customers schedule an annual or seasonal cleaning to stay ahead of algae, mildew, and buildup, and many commercial properties — restaurants, drive-thrus, gas stations, and property-managed sites — are on a recurring maintenance schedule. Ask about setting up a recurring plan when you request a quote.

Question 28

Do you work in Akron neighborhoods with older homes and multifamily buildings?

Accepted Answer

Yes. Our Akron work spans older housing stock, multifamily buildings, and the commercial corridors, and older mixed-material homes there are washed with low-pressure soft washing instead of high pressure. Typical Akron projects are algae streaking on north-facing roofs, dirty and oxidized vinyl siding, dark staining on driveways and porches, plus apartment walkways and dumpster pads for property managers. Single homes and multi-building properties are scoped the same way: surface by surface, with access and drainage reviewed first.

Question 29

How long do I have to tell you if something is not right?

Accepted Answer

Fourteen days on any surface except a roof, and 60 days on roof soft washing. The roof window is longer because a treated roof keeps improving for four to six weeks as dead moss and lichen release with rain and wind — judging it at two weeks would be judging it half-finished. Either way the fix is a return visit to re-clean the area at no charge.

Question 30

How long do the results last?

Accepted Answer

How long results last depends on the surface, sun and shade exposure, tree cover, drainage, and local weather, so we don't promise a fixed timeframe. Shaded, tree-covered roofs and siding typically show regrowth sooner than sun-exposed surfaces, and concrete varies with traffic and moisture. Concrete that is sealed after cleaning stays protected longer — up to about 3 years depending on traffic and exposure — which is why we offer sealing as a follow-up option. Many customers schedule a recurring or annual cleaning to stay ahead of buildup.

Question 31

I have a single-story ranch in North Canton. What does a typical exterior cleaning cover?

Accepted Answer

On a one-story home a standard house wash covers the siding, soffit and fascia, and cleaning of the outside face of the gutters and downspouts, done as a low-pressure soft wash matched to vinyl, aluminum, or stone-veneer surfaces. Most North Canton homes we work on pair that with roof soft washing for shingle algae and with driveway or walkway cleaning, since the front approach is what shows from the street.

Question 32

My 1940s house has chalky siding, a streaked roof and crumbling concrete. What is actually fixable?

Accepted Answer

The first two, fully. The third, partly — and that distinction matters before you spend anything. West-side and township Youngstown neighborhoods were largely built between the 1930s and 1950s, so original-era siding has chalked and needs oxidation treatment, and low-pitch asphalt roofs hold algae streaking that traps moisture against the shingle and shortens its life. Both come back. On concrete that old, organic staining and discoloration lift, but scaling — where the top layer has already broken loose — does not come back. No amount of pressure returns a spalled surface, and pressure is what accelerates it.

Question 33

My HOA sent a notice about my roof or siding. How quickly can it be done?

Accepted Answer

Usually within the normal scheduling window, and it helps to send the notice itself. The exact wording tells us what the association flagged — roof streaking, green growth on siding, stained concrete at the drive — so the work can be scoped to resolve that specific complaint rather than guessing at it. Before-and-after photos of the finished work are available to send back as documentation, along with a certificate of insurance if the association asks for one.

Question 34

My Kent house has porch spindles and brackets under heavy trees. What is the risk?

Accepted Answer

Heavy mature canopy plus period detail is the worst combination for organic growth and the best argument for soft washing. Nineteenth-century houses in the Davey and Kent Families neighborhood carry brackets, spindle work, wood porch floors and soft brick, all under trees that keep those surfaces damp and shaded. Pressure on any of it strips paint, splinters wood and opens mortar, so the chemistry does the lifting and the rinse stays low and directed. West Main Street holds twenty of Kent's significant older homes, post-Civil War through the early twentieth century, and the same rule applies to all of them.

Question 35

My neighbor's house is the same age and their siding still looks new. Why does mine look worse?

Accepted Answer

Orientation and exposure explain most of it. Two identical houses on the same street age differently depending on which walls take afternoon sun, which sit in shade, whether trees drop debris on one roof and not the other, and how the ground drains along each foundation. Sun-facing walls oxidize and chalk; shaded walls grow algae. So the same house can need two different services on two different elevations, and a neighbor with a different orientation genuinely has a different problem — or none yet.

Question 36

My siding is green on the north side and clean everywhere else. Why?

Accepted Answer

Because the north elevation never dries out. It gets the least direct sun, holds moisture longest after rain and dew, and if there are trees or a neighboring house shading it further, the surface can stay damp for most of the day. That is exactly the condition algae needs. It is a living organism rather than dirt, which is why a rinse pushes it around and it returns within weeks — the treatment has to kill it at the root so it releases and does not immediately regrow.

Question 37

My siding looks dull on the sunny side but fine in the shade. Why?

Accepted Answer

Two different problems on one house. The sun-facing elevations have oxidized — the vinyl finish itself has broken down into a dull, chalky layer, which is why a rinse wets it and it dries back looking the same. That needs oxidation treatment, not washing. The shaded planes, usually the roof, hold moisture and grow algae, which is organic and releases with a soft wash. The 1990s and 2000s Medina subdivisions are almost entirely vinyl siding with asphalt shingle, which is the pairing where this split shows up most.

Question 38

My siding looks washed out and my roof has dark streaks. Same problem?

Accepted Answer

No — and treating them the same is why a standard wash sometimes disappoints. Washed-out siding on a Northwest Akron split-level or Cape Cod is usually oxidation: the painted or aluminum finish has broken down, so a rinse wets it and it dries back to the same dull grey. That needs oxidation treatment. The dark streaking on the roof is a living organism growing on the plane facing the tree line, and it releases with a low-pressure soft wash. One is a finish problem and one is a growth problem, and they are identified before anything is applied.

Question 39

My walkway gets slippery when it rains. Is that normal?

Accepted Answer

It is common and it is worth taking seriously. The slick film is biological — algae and a thin biofilm growing in the pores of the concrete, usually where the surface stays shaded and damp. Dry, it is nearly invisible and reads as ordinary dark concrete. Wet, it has roughly the traction of ice. This is the most common exterior fall risk on a residential property and one of the few cleaning outcomes that is a safety result rather than an appearance one.

Question 40

We have a metal-roofed barn and slabs that have seen equipment. Is that in scope?

Accepted Answer

Yes, and it is a genuinely different job than the house. Rural properties here are lower, older and more exposed, with metal roofing and outbuildings, gravel-to-concrete transitions, and slabs that have seen equipment, fuel and livestock traffic. Those need degreasing before any general cleaning is worth doing, because a standard solution just spreads what is on them. Metal roofing gets a method suited to the coating rather than the one we would use on asphalt shingle. Outbuildings are measured and quoted as their own line items rather than folded into the house, because on acreage they frequently carry more surface than the house does.

Question 41

We just built at Becker Creek. Anything to clean on a brand-new house?

Accepted Answer

Sooner than you would guess, because of contrast rather than volume. The newest builds at Becker Creek, Willow Glens and North Dover Estates have young concrete and fresh vinyl, and organic growth shows immediately against light surfaces — a small amount of green reads clearly on pale concrete or bright siding where it would be invisible on a weathered surface. The good news is that it comes off readily at that stage. On a house this age we will usually tell you the drive and walkways are the useful job and the siding is a light pass rather than a full treatment.

Question 42

What is the difference between soft washing and pressure washing?

Accepted Answer

Soft washing uses low pressure and surface-appropriate cleaning solutions for delicate materials such as many roofs and siding types. Pressure washing is generally reserved for durable hard surfaces, such as applicable concrete. SurfaceWorks ProWash selects the method based on the material, condition, and project scope.

Question 43

Which surfaces on my house actually need cleaning first?

Accepted Answer

On a Louisville subdivision house, usually the drive and the roof before the siding. The asphalt shingle roof streaks on the shaded plane and is soft washed, never pressured. The vinyl or aluminum siding chalks and oxidizes on the sun side, which is an oxidation treatment rather than a wash and can often hold another season. And the wide concrete drives and aprons here hold road salt through spring, which is both the most visible surface and the one that degrades if it is left.

Question 44

Why can't you pressure wash a roof?

Accepted Answer

Standard asphalt shingles aren't designed for high pressure — it can strip the protective granules and shorten the roof's life. Soft washing uses low pressure and a solution matched to the material instead, which is why it's the recommended method for shingle roofs.

Question 45

Why is my vinyl fence green on one side only?

Accepted Answer

Same reason a house is: that side holds moisture longer. A fence line that backs onto trees, a hedge, or a neighbor''s shaded yard stays damp after the sun-facing side has dried, and algae takes hold on the damp side alone. Vinyl fence cleans easily and does not need pressure — it needs a solution with enough dwell time to kill the growth so it does not return in a month. Pressure on vinyl fencing tends to drive water into the rail joints, which is where the panels hold moisture afterward.

Question 46

Why is the bottom of my split-level siding the dirtiest part?

Accepted Answer

Because split levels put siding low to the grade and to the mulch line, which is exactly where splash staining and green growth start. Rain coming off the roof hits the ground and comes back up onto the panel, and the mulch bed holds moisture and organic material against the lower course. That band often needs a different approach than the rest of the elevation — treatment aimed at organic growth, plus attention to keeping runoff out of the beds themselves. We treat it as its own zone on the walk-through rather than assuming one pass across the whole wall will even it out.

Question 47

Why is the concrete under my deck always green?

Accepted Answer

No sun and no airflow. A deck traps moisture against the slab underneath and blocks the drying that keeps the rest of the patio clear, so algae establishes there first and holds longest. The same thing happens on the shaded side of a garage and along a north-facing foundation. It cleans fully, and it will return faster there than anywhere else on the property, so it is usually the surface worth putting on an interval rather than cleaning once and expecting it to hold.

Question 48

Will cleaning void my shingle warranty?

Accepted Answer

Not when it is done by the method the manufacturers themselves specify. The Asphalt Roofing Manufacturers Association is explicit that a pressure washer should never be used on an asphalt shingle roof because it causes granule loss and can lead to premature failure — and GAF publishes the same warning in its own technical bulletin. What they do endorse is chemical treatment at low pressure, after which growth loosens over time and can be removed with a leaf blower. Pressure is what creates a warranty problem. Soft washing is the method written into the guidance.

Question 49

Will soft washing damage my roof shingles or siding?

Accepted Answer

Soft washing uses low pressure and a solution matched to the material, which is why it is the recommended method for shingles, painted wood, vinyl, and other surfaces that high pressure can damage. Concentration, dwell time, and rinse approach are adjusted to the surface and its condition rather than applied the same way everywhere.

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