Bond Roofing Company
Article Top Things To
Know About Solar
Solar panels have several benefits including lowering
electricity costs, helping the environment, and even tax
This makes them an attractive
asset for a home or business, but
there are a few things you should
know before you get them
Perhaps the most important thing you'll want to determine before
deciding on solar panels is how much weight your roof can
If your current roof can't handle
the weight, you've got a bigger
cost on your hands.
On average, solar panels weigh 2-4 pounds per square
foot which is usually within the acceptable limits of your
The weight is often concentrated
as installers want to minimize the
number of roof penetrations and
these point loads can be
You'll also want to consider how the panels will be mounted to the roof. If your
roof is very steep or if you have a special roof covering such as slate or tile, the
installation can be quite expensive.
Regardless of roof type, your
installer will want to minimize the
number of penetrations in order to
minimize the potential for roof leaks.
Most solar mounts for sloped roofs penetrate the roof
and attach to the rafters or purlins below.
Solar mounts for metal roofs usually
do not penetrate the roof but rather
clamp to the seams. Mounts for flat
roofs might simply sit on top of the
roof with a weighted rack.
Another very important thing to consider is the age of your
If it is nearing the end of its useful life or
if the life expectancy of the roof is less
than that of the solar panels, you’ll want
to replace the roof before installing the
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