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ROOFING REPLACEMENT: A GUIDE TO THE BASICS

Roof replacement isn’t something to take lightly, and it’s also not something
that should be put off. Before requesting quotes from roofing contractors, read
up on these essentials if you suspect your roof is reaching the end of its
useful life.


THE FOLLOWING ARE THE MOST PREVALENT RESIDENTIAL ROOFING OPTIONS:


ASPHALT COMPOSITION SHINGLES

These are inexpensive and widely available, but their flat look makes them less
appealing than alternative options. This is by far the most common form of
roofing material.


WOOD SHAKES OR SHINGLES

These shingles are expensive yet beautiful. They are quite durable, however they
are not recommended in areas where there is a risk of fire.


SLATE ROOFING

A very beautiful, high-end roofing choice, but it is also quite costly and
heavy. Slate roofs are exceedingly slippery to walk on and are difficult to
restore if they get broken.


COMPOSITION SLATE

These synthetic tiles are gaining popularity since they are manufactured from 95
percent recycled materials, including rubber. They are similar to slate and
other types of stone tile, but they are considerably lighter and less prone to
damage.


CONSIDER ROOFING WORK IN THE OFF-SEASON

A well-coordinated roofing team is a sight to behold, which is why we pay them
to do our roofs. While the ideal roofing season in most regions of the United
States is from late spring to early fall, competent workers may prolong the work
season, sometimes even roofing when snow flurries are forecast.




TEAR OFF OR ADD A LAYER?

It was formerly normal practice to put a new shingle roof over an existing layer
at least once, if not twice. This is no longer permitted in certain areas, which
now demand a complete tear-off of the existing roofing. Even if layering is
permitted, the benefits and downsides of placing a fresh layer of shingles over
the old should be carefully considered:


WEIGHT

The major argument against adding more layers of asphalt shingles is that the
roofing materials might become too heavy for the underlying roof structure. This
can be a structural issue, particularly in older homes. It is sometimes stated
that a triple coating of asphalt shingles is equivalent to a single layer of
slate shingles—a very heavy material.


TELEGRAPHING

Another issue with shingling over existing shingles is that you are effectively
replicating some of the surface imperfections that are already there. If you’re
thinking of installing a new roof, there’s a high possibility you have bubbles,
bumps, and waves that need to be addressed. Putting new shingles over existing
issues might result in an unappealing new roof. One solution is to go over the
existing roof and fix as many faults as possible before re-roofing. To repair
irregularities, gaps, and protruding nails, all you need is a hammer, some
roofing nails, and a handful of shingles.


WORK AND WASTE REDUCTION

The major benefit of layering is that it decreases the amount of work required.
The procedure is made more difficult by removing the old layer and then laying
down a new layer. This isn’t a big deal if you hire a roofing contractor to
perform the job—they can strip most roofs in a morning—but if you’re doing it
yourself, it may be a strong justification for covering straight over the old
roof.

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