How to Pressure Clean Your Roof

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Cleaning your roof
Maintaining your roof will enhance the aesthetic
value of your home so keep your roof free of
mildew, dirt, mold, algae, and moss. Your roof
is exposed daily to harsh environmental
conditions such as sunlight, rain, snow, and heat
causing it to become discolored overtime. Add
into this the growth of mildew, mold, etc and
your roof will soon take on an unsightly
appearance. This kind of roof will take away
from the value of your home should you decide to
sell it. Roof cleaning is not an easy job but
should be done periodically by you or a
professional. Because some of the chemicals used
in roof cleaning are harsh, you should first soak
any shrubs close to your home. This will protect
them from any cleaning solutions that drip from
the roof. Since you will be using a ladder to
climb on your roof you should have someone there
to make sure you do not fall.
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Cleaning your roof
To do the job properly you will need either a
sponge mop or broom to scrub your roof, some type
of cleaning solution, and a long garden hose.
You will also need a pump sprayer. If you do not
want to use the harsh commercial cleaners, you
can make one yourself. You need four point five
liters of water, a cup of chlorine bleach and a
fourth cup of tri-sodium phosphate. Tri-sodium
phosphate is a powder that does not cause suds
and is used for heavy duty cleaning. If you want
to increase its degreasing ability, you can add a
cup of detergent powder to the mixture. It is
advisable to do this on a cloudy day so the
cleaner does not dry too fast. When scrubbing
the dirty areas of your roof do it gently because
scrubbing it too hard could damage the roof
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Pressure Cleaning your roof
Many experts feel that when you do roof cleaning
that you should not use a pressure washer
although this is the best and quickest way to get
rid of algae and moss. They feel that doing so
will damage the shingles on your roof. If you do
it gently and follow these tips using pressure
cleaning on your roof will not damage the
shingles. One of the first things that you need
to make sure you are doing is not using the
pressure washer at the highest setting. Yes, you
will be able to blast all the algae and moss off
quicker but you could accidentally blast shingles
away too. Use the lowest setting when pressure
roof cleaning although it will take a little more
time.   When doing a roof pressure wash you are
pounding your roof with five hundred pounds per
square inch of water or lower. Try to hold the
wand of the pressure sprayer up but not pointed
directly at the roof. Do the roof wash in
sections from top to bottom sweeping the pressure
wand from side to side. You should use a
thirty-five degree spray wand with your pressure
washer.  
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Pressure Cleaning your roof
You need to remember that your roof shingles are
fragile so after pressure washing them be careful
walking on your roof. Try to avoid stepping
anywhere you have not washed too. When walking
on your roof you need to remember that the tiles
are wet and can be slippery. Walk only on the
support beams of your home. To avoid breaking the
roof shingles before and after washing walk
lightly. Make sure that you are wearing shoes
with a soft, non-slip sole.  
Make sure that when you use pressure cleaning on
your roof that you are not standing on the ladder
to do so but standing on the roof instead. If
you try to do it from the ladder, it could cause
you to become overbalanced and possibly falling
from the ladder.
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