ROOF CLEANING IN ANNAPOLIS, MD | ADWELL SERVICES

Proudly offering professional Soft Wash Roof Cleaning services to Annapolis, Edgewater, Bowie, Millersville, Severna Park and all surrounding areas!

Do you realize that the black streaks on your roof are not just unsightly, but that they are actually algae that feeds on the shingles?  In fact, algae, moss, and lichen growing on a roof are a leading cause of premature failure?
Why Should I Clean My Roof?
Algae & mildew (green & black streaks) growing on a roof feed on the shingles.  While there is some discussion as to whether this damages the shingles or not, they are certainly unsightly.  In addition, they are the precursor to moss & lichen.  
 
Moss & lichen put down roots, so they do damage the shingles & shorten the life of the roof.  Many insurance companies are now requiring that the growth be destroyed in order to insure the home.
 
How Should My Roof Be Cleaned?
Pressure washing a roof causes irreversible damage to the shingles.  A non-pressure (or soft-wash) method is the correct method to use.  The goal is to destroy the growth without damaging the shingles.  
 
A professional biodegradable detergent that includes a surfactant to keep it in place is applied to the roof.  This method safely destroys the growth without displacing the granules of the shingles.  Within a short time the detergent degrades & the dead growth washes away over time.
 
What Should I Expect With Roof Cleaning?

It would be really great if we could just squirt a little detergent on your roof and years of growth would simply evaporate.  Unfortunately, it just doesn’t work that way.

Here’s what you should expect:  Once we treat your roof, all growth will be dead, causing no further damage to the shingles.  However, the growth will take some time to rinse safely from your roof.

Black streaks (algae) turn light brown or disappear when treated, & typically rinse down within a few rains.  Moss turns white or light brown.  However, because moss has roots it takes longer to rinse from the roof.  Lichen turns white or tan when treated.  Lichen have even heartier roots & take the longest of all to disappear, sometimes several months or longer.

WHAT TO EXPECT WITH ROOF CLEANING?

It would be really great if we could just squirt a little detergent on your roof and years of growth would simply evaporate.  However, that simply isn’t how it works.
 
So, here’s what you should expect:  Once we treat your roof, all growth will be dead, causing no further damage to the shingles.  However, the growth will take some time to rinse safely from your roof.
 
Black streaks (algae) turn light brown or disappear when treated, & typically rinse down within a few rains.  Moss turns white or light brown.  However, because moss has roots it takes longer to rinse from the roof.  Lichen turns white or tan when treated.  Lichen have even heartier roots & take the longest of all to disappear, sometimes several months or longer.

Why not simply rinse the growth from the roof when we clean it?  There are a several reasons:

  • Rinsing the roof increases the risk of dislodging shingle granules & damaging the roof.

  • Because some growth has roots in the shingles, granules would be removed along with the growth, much like pulling weeds in a garden.

  • We prefer to allow the detergent to neutralize on the roof to minimize the risk of damage.  This typically happens in 12-24 hours.

*While we recommend not rinsing the roof, we do offer rinsing in cases where time is of the essence, such as when a home is being sold.

FAQ On Our Roof Cleaning Process

That depends on the condition of your roof & the environment around your home.  Algae, moss, & lichen grow best in shaded areas.  Most roofs stay clean for 3-5 years.

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While algae may only be visible growing on part of the roof, it is present on the entire roof.  The visible areas have the highest concentration of algae.  Treating part of the roof may cause the growth to come back more quickly.  This is the reason we don’t offer a warranty on partial roof cleaning.
 
In addition, there is often more growth present than can be seen from the ground.  Algae, moss, lichen can be present in areas that are obscured from view.
 
With that said, the decision is yours.  We offer a full roof package & a package that covers up to 1/2 of the roof.  The 1/2 roof package is often used by homeowners who want to improve the curb appeal of their house when they put it up for sale. 

 

The biodegradable detergent we use to destroy the growth on the roof has the ability to damage growth on the ground.  As a result, we take professional measures to protect your landscaping.  These include using a professional surfactant to keep the solution from running off as much as possible, using water to dilute overspray, & bagging downspouts when necessary.
 
Despite these measures, occasionally a few leaves may turn brown.  We do our best to avoid this, & typically the landscaping does fine.
 

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