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How to Shingle a Roof
Roofs have a tendency to erode and fail over time no matter how
carefully they are maintained. It is a simple fact of suburban
and rural living that the elements can be punishing over the
course of many years, particularly if you live in a four-season
climate that comes with ice and snow, rain, and pounding sun.
Although you may be able to repair early problems on an
individual basis, the time will eventually come when the entire
roof no longer affords your home the protection it deserves.
When this moment arrives, you have a choice – call the pros or
do it yourself. |
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It may not surprise you
to learn that most homeowners hire roof contractors to completely
shingle a new roof. After all, working up high without proper
training and protection can be terribly dangerous. If you follow
some basic guidelines and educate yourself about the process,
however, you may be able to save an extraordinary amount of money by
heading up there and laying those shingles yourself. Many homeowners
report they were astonished to discover how straightforward this job
really is, particularly given the exorbitant fees most roofing
professionals command.
The first step is to decide what kind of shingles you want. Although
standard grey asphalt and fiberglass are the most common types, you
can roof your home with anything from cedar shakes to stately slate.
Each comes with its own price tag and attendant headaches, however,
and most roofing professionals agree it is far easier to work with
the inexpensive asphalt varieties than anything else. Bear in mind
as well that although the same basic principles apply regardless,
certain roofing materials also demand you use a number of expensive
tools that may eliminate any advantage associated with the DIY
route.
Next you want to consider and plan for optimum safety. Roofing
projects are fraught with danger, and the last thing you want is for
a devastating injury to put you out of commission and effectively
increase the cost of that repair by an order of magnitude. Wear
proper footwear, avoid heading up during wet or cold weather, and be
sure to wait until the morning dew has burned away during the summer
months. You also want to secure the ladder tightly at both ends and
consider having someone around to help in the event of a fall.
Finally it is essential to choose your pathways so they avoid power
lines and TV antennae – a nasty shock can be every bit as hazardous
as a fall.
The most important step for most roofing endeavors is to clear the
existing roof to make room for a level nailing surface. Usually this
means repairing the roof to the point where it can support nailing
strips, though you may have to remove everything altogether if
multiple layers of shingles have rendered the roof structurally
unsound. Once you have the proper template, you can begin measuring
feathering strips to compensate for any gradations in slope and
pitch – often small corrections like these can make a big difference
down the line.
Next comes the ice and water shield, felt and drip edges – all basic
materials designed to create a better bond and stronger protection
from the elements. Although the ice and water shields aren’t
strictly necessary, they will inevitably extend the life of your
roof by accounting for leaks, “soaks” and driving wind that might
otherwise penetrate the shingle field. The felt should be laid in
rows and becomes especially important for certain grades of asphalt
shingle – be sure and ask at your local home wars store whether you
need to take additional steps here for a secure fit.
Now you are ready for the shingles. Start at the bottom corner and
work your way up in even rows, being sure to check for proper
ventilation and spacing throughout. Each 1-3/4” nail should be
covered by the one just above, and you may want to add roofing
cement to each nail to ensure it doesn’t loosen over time. Once the
flat surfaces are covered, you want to pay particular attention to
any valleys as well. Many experts recommend adding metal flashing
down the ridge of the valley and building in some flexibility as
well, as different sections of roof tend to shift over time. |