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| Call us for Moss & Algae Roof Service 907-344-9911 |
Dealing with Algae, Fungus, Lichens, Moss on Roofs
In Anchorage, we are always excited about Southern exposure. The sunlight for us is important. It is
also important for your roof. Moss growing on any roof surface will be more severe on roof sections
that are shaded and exposed to periodically damp cool weather conditions. Unfortunately cool, damp
and shaded describes most of our roof area. Over the years of roofing in Alaska, we have discovered
ways to best explain the moss problem to home owners, treat and prevent the moss problems.
Please read the information below. If after you have read this information and would like us to provide
moss treatment services on your home, fill out the request form and submit it. We will call you as
soon as we receive your request.
See attached information sheet for details on common roof growth.
What to Expect: How Holland Roofing provides roof top moss service
It will be impossible to clean a very old worn out roof without damaging it. Replacing a much older
worn roof is the only recommendation Holland Roofing will give if the roof material is in very poor
conditions. In most cases, Holland Roofing will not even offer moss treatment services to roofs older
than 15 years old. If the roof shingles are fragile, brittle, cracking, curled, the risk of damage to the
roof during moss removal is much more likely. The roof may look cleaner, but its remaining life may
be reduced by aggressive cleaning. Holland Roofing cannot guarantee that roof cleaning will not
cause more damage or increase the life of the existing roof.
Raking & brushing roof moss: It is possible to remove most of the moss from a roof surface by
gentle cleaning using a soft brush, broom and a garden hose. Brushing or raking is done with care to
minimize damage to the shingles themselves.
Holland Roofing uses a flexible leaf rake or brush to remove moss, Most but not all the debris on the
roof after raking will be swept off the roof edge. Sometimes a low pressure spray with a garden hose
will be used to aid in clearing off the loosened moss.
Power washing an asphalt shingle roof (or a wood shingle roof in old, worn, fragile condition) is a
process that can damage the roof by breaking shingles or by loosening the protective mineral
granules from the shingle surface. We do not recommend power-washing asphalt shingles or any
other roofing product that can be damaged by high pressure spraying. Holland Roofing will not power
wash the roof.
Moss Kill Treatments: Treatment that "kill" the moss or lichens work similar to weed kill for the
yard. It may require more than one treatment and may need to be done every other summer. This will
help lessen the growth of what is existing and help prevent new growth.
Zinc Strips: Holland Roofing can provide and install zinc strips along the ridge of an existing roof
that will help to slowly kill off moss or lichens as rainwater washes over the metal and down the roof
surface. This method is suitable for both prevention of future or further moss or lichens growth on the
roof and for gently treating an otherwise fragile old roof. Zinc looks like a roll of 3 inch wide metallic
ribbon. It is unrolled and fastened at the high points in the roof. It is usually installed alongside the
ridge vents and peaks.
Give the roof surface more sunlight: Trim back trees whose branches overshadow the roof
surface. Keep the roof clean of organic debris like leaves or pine needles which may collect in valleys
or at other roof locations. Holland Roofing may cut back small branches that are actually hanging over
the roof surface but we will not remove entire trees or large branches. A tree service company
should be contracted to do this type of work
Algae-resistant shingles: Chemically treated roof shingles are available from several asphalt
roofing manufacturers who offer these products which are resistant to moss, lichens, or algae
growth on roofs. New asphalt roof shingles are available with an inclusion of chemicals that resist
moss, lichens, algae, and even fungal growth. Resist does not mean moss-proof or lichens proof
however it does make a big difference. Discuss this option with us when it's time to replace the roof.
Price for Moss Services
In most cases a moss treatment service from Holland Roofing averages $500.00 to $1,200.00,
depending on the size of the roof area and other factors. After submitting a request for service a price
for the service will be provided to you.
Please understand that the roof will not appear new or clean after a moss service. The large thick
areas of moss growth will be reduced but some moss will remain in the key ways (small cracks or
area between the shingles). It takes time, sunlight and rains for the moss kill solution and zinc to fully
affect the moss still remaining. In most cases moss service does improve the look and life span of
the roof. Please call us with any additional questions.
In Anchorage, we are always excited about Southern exposure. The sunlight for us is important. It is
also important for your roof. Moss growing on any roof surface will be more severe on roof sections
that are shaded and exposed to periodically damp cool weather conditions. Unfortunately cool, damp
and shaded describes most of our roof area. Over the years of roofing in Alaska, we have discovered
ways to best explain the moss problem to home owners, treat and prevent the moss problems.
Please read the information below. If after you have read this information and would like us to provide
moss treatment services on your home, fill out the request form and submit it. We will call you as
soon as we receive your request.
See attached information sheet for details on common roof growth.
What to Expect: How Holland Roofing provides roof top moss service
It will be impossible to clean a very old worn out roof without damaging it. Replacing a much older
worn roof is the only recommendation Holland Roofing will give if the roof material is in very poor
conditions. In most cases, Holland Roofing will not even offer moss treatment services to roofs older
than 15 years old. If the roof shingles are fragile, brittle, cracking, curled, the risk of damage to the
roof during moss removal is much more likely. The roof may look cleaner, but its remaining life may
be reduced by aggressive cleaning. Holland Roofing cannot guarantee that roof cleaning will not
cause more damage or increase the life of the existing roof.
Raking & brushing roof moss: It is possible to remove most of the moss from a roof surface by
gentle cleaning using a soft brush, broom and a garden hose. Brushing or raking is done with care to
minimize damage to the shingles themselves.
Holland Roofing uses a flexible leaf rake or brush to remove moss, Most but not all the debris on the
roof after raking will be swept off the roof edge. Sometimes a low pressure spray with a garden hose
will be used to aid in clearing off the loosened moss.
Power washing an asphalt shingle roof (or a wood shingle roof in old, worn, fragile condition) is a
process that can damage the roof by breaking shingles or by loosening the protective mineral
granules from the shingle surface. We do not recommend power-washing asphalt shingles or any
other roofing product that can be damaged by high pressure spraying. Holland Roofing will not power
wash the roof.
Moss Kill Treatments: Treatment that "kill" the moss or lichens work similar to weed kill for the
yard. It may require more than one treatment and may need to be done every other summer. This will
help lessen the growth of what is existing and help prevent new growth.
Zinc Strips: Holland Roofing can provide and install zinc strips along the ridge of an existing roof
that will help to slowly kill off moss or lichens as rainwater washes over the metal and down the roof
surface. This method is suitable for both prevention of future or further moss or lichens growth on the
roof and for gently treating an otherwise fragile old roof. Zinc looks like a roll of 3 inch wide metallic
ribbon. It is unrolled and fastened at the high points in the roof. It is usually installed alongside the
ridge vents and peaks.
Give the roof surface more sunlight: Trim back trees whose branches overshadow the roof
surface. Keep the roof clean of organic debris like leaves or pine needles which may collect in valleys
or at other roof locations. Holland Roofing may cut back small branches that are actually hanging over
the roof surface but we will not remove entire trees or large branches. A tree service company
should be contracted to do this type of work
Algae-resistant shingles: Chemically treated roof shingles are available from several asphalt
roofing manufacturers who offer these products which are resistant to moss, lichens, or algae
growth on roofs. New asphalt roof shingles are available with an inclusion of chemicals that resist
moss, lichens, algae, and even fungal growth. Resist does not mean moss-proof or lichens proof
however it does make a big difference. Discuss this option with us when it's time to replace the roof.
Price for Moss Services
In most cases a moss treatment service from Holland Roofing averages $500.00 to $1,200.00,
depending on the size of the roof area and other factors. After submitting a request for service a price
for the service will be provided to you.
Please understand that the roof will not appear new or clean after a moss service. The large thick
areas of moss growth will be reduced but some moss will remain in the key ways (small cracks or
area between the shingles). It takes time, sunlight and rains for the moss kill solution and zinc to fully
affect the moss still remaining. In most cases moss service does improve the look and life span of
the roof. Please call us with any additional questions.
| Holland Roofing Co., Inc. Phone: 907-344-9911 Fax: 907-344-9941 Email: info@hollandroofingco.com Alaska Business License #269361 Licensed, Bonded and Insured Office Hours: Monday-Friday 9 am - 5 pm |
To request roof top moss service for your home or business, please submit the following
form. By submitting this request , you are agreeing to the terms and conditions as
described above. Thank you!
form. By submitting this request , you are agreeing to the terms and conditions as
described above. Thank you!