Technical Committee Approves Two CMA Ballots; Board to Discuss Tomorrow
After a relatively quiet start, the National Fenestration Rating
Council's (NFRC) Fall Meeting heated up a bit yesterday afternoon
during the U-Factor Subcommittee meeting. The discussion centered
around NFRC 100 ballot negatives concerning the inclusion of having
two rated sizes for each product line.
According to Randy Van Voorst of Quality Testing Inc., having more
than one size would "muddy the water," because it would
allow every product line to have two different numbers for U-Factor
and Solar Heat Gain Coefficient (SHGC).
Tom Culp with Birch Point Consulting LLC spoke in favor of having
more than one rated size.
"Many commercial manufacturers feel that being restricted to
a standard size does not correlate to their experiences with actual
commercial sizes," Culp said.
Ultimately, the subcommittee voted against having more than one
size. Mike Thoman, subcommittee chair, pointed out that the issue
of rating actual sizes will still need to be covered.
"Disparity in the information we're putting out about products
is what caused this
" Thoman said. "The commercial
guys have a valid point and we will need to discuss it at some point."
Technical Committee sessions continued this morning, and included
a meeting of the Component Modeling Approach (CMA) - Technical Subcommittee.
Much of the time this morning was spent reviewing and discussing
a number of ballots. Two ballots, validation testing under NFRC
100 and frame grouping under NFRC 200, were forwarded on to committee
for approval. The NFRC 100 and 200 ballots for non-standard products
were returned to task group.
The Technical Committee, chaired by Jeff Baker of WESTLab, also
convened this morning. Mike Manteghi of Traco, CMA Technical Subcommittee
chair, brought forward the two motions to approve the validation
testing and frame grouping ballots. Both carried and will next be
sent to the board for its approval.
The NFRC's board of directors meeting, which takes place tomorrow,
will conclude the group's Fall Meeting. Stay tuned to USGNN.com
for meeting updates and reports.
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