Building Management Hawaii August/September - (Page 22)
Roofing
Cool Roofing Technology
Constant advances make new products safer, more energy-efficient
By Brenden Clement
P
eople often ask us, "What's a "cool
roof" and how can it benefit my
building?" The answer is that a cool roof
is a roofing system that reflects more
than 70 percent of the sun's energy. Cool
roofs keep building interiors cooler,
which lowers energy costs and reduces
damage to the environment.
A high solar reflectance is the most
important characteristic of a cool roof.
It reflects sunlight and heat away from
the building or structure, reducing
the roof's surface temperature. This
reflectance lowers the radiant heat
transfer into the building because of
the cool roof's high thermal emittance
and keeps the building cool.
Building owners and roofing
contractors have used cool roofing
products for nearly 25 years on
commercial, industrial and residential
buildings and structures. They're
mostly installed on low-slope roofs
(roofs with a gentle grade), but can
also be found on pitched roofs (roofs
with a more steep grade).
Saving on Energy Use
The benefits of using a cool roof
are numerous. Because cool roofs
transfer less heat into the building
and keep your building cooler, you'll
also use less energy for items such
as air conditioning, ceiling fans,
oscillating fans and so on.
Cool roofs can also help air
conditioners run more efficiently
We Are Cool roofing experts
Target Hilo Sarnafil PVC Installation
We specialize In:
Coatings * Single Ply * Silicones
Traditional Roofing * Waterproofing
by keeping rooms cooler so that AC
units do not need to work as hard to
cool spaces. Cool roof coatings can
additionally be used on AC ducts to
keep the air in the duct cool, which
helps AC units run more efficiently
and lowers electricity costs.
Cool roofs keep
building interiors
cooler, thereby helping
to lower energy costs
and damage to the
environment.
A recent California study found
that cool roofs provide an average
yearly net savings of almost 50 cents
per square foot. This number takes into
account the price premium for cool
roofing products, increased heating
costs in the winter (which most of us
don't worry about in Hawaii except at
higher elevations), summertime energy
savings, savings from less energy use
by cooling equipment, and reduced
labor and material costs over time
resulting from the longer lifespan of
cool roofs compared with traditional
roofing products.
Reducing Environmental
Damage
By lowering energy use, cool
roofs also decrease the production
of associated air pollution and
greenhouse gas emissions. Most cool
roofs can be installed over an existing
roofing system as long as the local
Affordable, Reliable, Professional Lic# C-28824
building code permits it. This helps
curb
harmful products
808-282-0477 WWW.COOLROOFHAWAII.COM
8
0
8
2
8
2
0 the amount of 7
4
7
being dumped in landfills.
22
August-September 2014
BMH
www.buildingmanagementhawaii.com
http://WWW.COOLROOFHAWAII.COM
http://www.buildingmanagementhawaii.com
Table of Contents for the Digital Edition of Building Management Hawaii August/September
Roofing Warranties: Read Them
Heeding Pacific Cyclone Warnings
Eco-friendly Metal Roofing
Cool Roofing Technology
When Good Pipes Go Bad
Why Cast Iron Pipes Fail
Is Your Sewer Squeaky Clean?
Water Heaters Versus Boilers
Preventing Backflow
Safeguarding Your Building’s Water
Safeguarding Your Building’s Water
Why Regular HVAC Inspections Matter
Why Regular HVAC Inspections Matter
Industry News
Industry News
On Site: A Well-Run Association
On Site: A Well-Run Association
Building Management Hawaii August/September
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