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Roofing Material Weights
Inspect your Home’s Attic and Roof prior to
Choosing a Heavy Roofing Material
By Mark J. Donovan
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There is a wide variety of
roofing material options to consider when roofing your home. However, it is
important to understand the pros and cons of each before making a decision.
In particular, it is important to understand the roofing material weights
for each product. Not all roof structures are created equal and consequently
not all roofs can support any roofing material type.
Asphalt roofing shingles vary in weight ranging from 250 to 400 lbs per
square (100 square feet of roof area). |
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Aluminum roofs, on the other hand weigh in at only 40-70 lbs
per square. Steel roofs weigh in at around 75 to 150 lbs, and concrete and
clay tiles range in weight from 600 to 1250 lbs per square. Slate roof tiles
weigh in at around 800–1,500 lbs per square.
As a result of the wide range of roofing material weights, it is important
to understand the construction of your roof before selecting a heavy roofing
material product such as slate or clay tiles. |
Photo by Mark Donovan |
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Key items that need to be inspected inside the
home’s attic include the type of roof framing, e.g. roof trusses or rafters,
their on-center spacing, and the size of lumber used for the trusses and/or
rafters.
In addition, the roof pitch is also an important factor in determining
the type of roofing material to use. Shallow roof pitches, below a 4/12
pitch for example, should use a membrane roof material or a rolled asphalt
roofing material. |
So before selecting a heavy roofing material such as tile or slate, make sure
your roof’s frame structure is designed to support it first. Using a roofing
material that is too heavy for your home’s roof structure could ruin the roof’s
structural integrity and create a hazard to your family.
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For more help on Shingling Your Home's Roof, see HomeAdditionPlus.com’s
Asphalt Shingle Roofing Bid Sheet.
The
Asphalt Shingle Roofing Bid Sheet
will
help to ensure
that
your roof won't end up with a blue tarp over it and a dumpster sitting in your
yard for weeks
as you wait for the roofing contractor to come back and finish roofing your
home.
How to Finance your Roof Project -
can help provide funds for your new home improvement project if financing is
required.
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Additional Roofing Resources from Amazon.com
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roofing price estimate.
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