Several years
back, the Steel Framing Alliance (SFA) set out to address
a series of high priority barriers and opportunities
that impact the use of cold-formed steel (CFS) in the
marketplace. In the February
edition of Framework Online,
we discussed priorities for 2009. Given that more than
half a year has gone by, now is a good time to bring
the membership an update on progress.
Technology Transfer
First, let me state that SFA is committed to providing
state-of-the-art information to the industry. We have
answered hundreds of calls and emails to the steel framing
hotline (1-800-79-STEEL) since the beginning of the
year on subjects ranging from design standards to market
information. However, our most effective outreach continues
to be the development and distribution of Tech Notes
and design guides through the Cold-Formed Steel Engineers
Institute (CFSEI). A list of the CFSEI materials published
in the first half of 2009 is shown in the sidebar to
the right.
Energy Efficiency
As we have stated in past issues, energy efficiency
may be the most important issue facing the CFS industry
in the current year. It is highly likely that the President
will sign a bill working its way through the U.S. Congress
that requires codes to be 30% more efficient than 2006
energy codes and standards. SFA has taken a proactive
approach to positioning steel in the energy area. Our
strategies are focusing on minimizing the cost difference
between steel and other materials. The activity since
the beginning of the year has focused on proposed requirements
to the ASHRAE Standard 90.1, recognized as the most
widely adopted energy standard for commercial buildings
in the United States and Canada. The 90.1 committee
has proposed requirements for as much as 4 or 5 inches
of foam insulation on CFS walls. SFA staff proposed
a limit on the thickness to 1.5 inches based on the
fact that thicker levels of foam would create a conflict
with other building code requirements. Although ASHRAE
made a concession on this issue, limiting the foam to
3 inches, SFA will continue to press for further reductions
in the ballot process.
SFA staff submitted several other energy code changes
to make CFS more competitive including a proposal to
modify the tables in the ICC codes that specify equivalency
between wood and steel assemblies. The tables as they
currently read in the codes are overly conservative
and create a cost disadvantage for CFS framing.
One last item on energy codes that has an impact on
CFS was addressed through a code change SFA submitted
to the ICC that reinstates allowances for HVAC and water
heating efficiencies to be used to trade off against
insulation in components. These trade offs were removed
in the 2009 code despite objections from SFA and numerous
industry groups. Due to some changeover in the committee
make-up, we believe this change has a good chance for
approval.
Research
Although the energy effort has focused on codes &
standards, SFA is also conducting research to improve
the performance of CFS framing. We recently joined with
the New York State Energy Research and Development Authority
(NYSERDA) on a jointly funded program to develop cost-effective
attachment methods for various siding materials for
steel studs where as much as four inches of foam is
required. This project, which began in mid-June will
allow our industry to direct the solutions rather than
have them imposed on us by others.
A second energy-related project is also underway.
SFA, with co-funding from the Steel Stud Manufacturers
Association and American Iron & Steel Institute
(AISI), has retained Oak Ridge National Lab (ORNL) to
conduct tests of CFS wall assemblies. The tests will
allow us to address overly conservative assumptions
being used in codes and simulation software to determine
thermal performance characteristics of steel framing.
ORNL will also be testing some innovative systems including
“warm wall” assemblies. More information
on warm wall design and other issues related to thermal
performance can be found in SFA’s 2008 update
to our Thermal
Design Guide. A downloadable copy is available
on SFA's homepage.
We will keep you informed of future progress on these
and other energy issues as they develop. However, please
consider attending the ICC code hearings in Baltimore
the end of October and early November. We will need
your support. Click
here for more information
Insurance & Cycle Time
The mid-rise construction market continues to be a growing
market for CFS load-bearing applications, and SFA is
involved in helping remove barriers to this market through
codes and standards, but also through program development.
Perhaps the largest benefit of CFS in the mid-rise market
is the insurance discounts CFS receives. Most of you
are aware of the builders risk reductions SFA has negotiated
for the industry. Discounts for CFS buildings range
from 25% to 75% depending on a number of factors. For
more information, you can contact Zurich, our insurance
industry partner at 1-888-40-STEEL.
In 2009, we have also been pressing SFA’s Steel
Advantage program. Steel Advantage offers a suite of
insurance offerings - including general liability, builder
risk, workers comp – with total combined discounts
as high as 45%. The program works through brokers. In
2009, our goal was to establish a network of regional
brokers in the United States and Canada. We have added
two large brokers since the spring and are working to
add at least 3 more by December. Information on SFA
insurance programs is available on a special section
of our Web site we recently developed at www.steelframing.org.
Working with SFA members, we have also determined that
cycle time is an important benefit CFS brings to the
mid-rise market. Thus, we have initiated case studies
of successful projects to document the cycle time, insurance
savings, and other benefits of CFS framing in this market.
The results will be used to educate financial representatives
and others building owner representatives about the
favorable cash flow scenarios available with CFS framing.
As with the insurance issues, we will be setting up
a special section on our Web site for cycle time issues.
When I started this article, I failed to realize how
much space would be required to capture all of SFA's
activities. There is much more currently under way than
could fit in these pages. For example, SFA is working
with the AISI Committee on Framing Standard (COFS) to
develop better ways to attach bottom track to concrete
slabs to address new requirements in the ACI-318 standard
for concrete. We are also working with AISI and steel
industry representatives in Canada to stop the advancement
of non-combustible construction methods into the 4+
story market.
Last, there are so many activities related to sustainability
and green building, it seemed better to create a separate
article
on that subject. Please see the article in this issue
of Framework Online
by Maribeth Rizzuto.
Although this is a challenging time for our industry,
SFA will continue to represent our members on the issues
we described here as well as others that arise. This
fall, our Technology Development Committee will again
conduct a survey to help identify emerging issues and
priorities for research. Keep a look out for the survey
in your email inbox in the November time frame. In the
meantime, please visit our Web site www.steelframing.org
for more information. And always feel free to call with
questions or comments, either directly (202)785-2022
or on the steel hotline at (800)79-STEEL.
Mark Nowak, President, Steel Framing
Alliance |