AAMA Members Tackle Variety of Issues at Fall Meeting
Members of the American Architectural Manufacturers Association
(AAMA) reconvened in Marco Island, Fla., on Tuesday for its annual
meeting, in which its task groups discussed a variety of subjects.
One of these was the Flashing Sealant Compatibility Task Group
that discussed Ballot #208-06. The document as written now allows
for different test temperatures, but discussion ensued as to whether
or not the language should allow for the use of different temperatures.
"The cured product is the finished product and that is what should
be tested," said Tremco's Rick Fiderius, chair of the group. "You
only have to test option one and if you pass option one, you can
pass option two without testing. Are we reporting results or making
judgments? I think we should write it so that we're reporting results,
not making judgments."
Chris Arnoldt from Q'So suggested keeping the temperature ranges
because of factors in the field, i.e., high temperatures in certain
climates. A motion to keep 149 F as the default temperature and
allow deviation was made and passed.
The Gunnable Expanding Foam Air Seals For Rough Openings Task Group
also discussed sealants, but this group reported on results of a
recent survey conducted of AAMA members. Respondents were asked:
When selecting a foam sealant, which of the following tests would
you consider to be the most important? Following are the top three
results: distortion pressure on jams, 18 percent, air seal capability,
11 percent and water penetration 10 percent.
Dow Chemical's Bob Braun, chair of the group, said no problems
with wood were reported in the first study, and the group is now
looking at vinyl. One of the issues to be studied is the frame and
how much it's going to move.
"The movement has nothing to do with product type," said AAMA's
Larry Livermore. "It can be looked at by an engineer to cut deflection.
We're just looking for a shape that is lowest on the totem pole
so that it doesn't move."
Hardware issues were also discussed at Tuesday's meetings and two
groups disbanded as work on their documents were complete. Following
are some updates from the hardware groups:
- 901-Rotary Operator Specification was approved.
- 902-Sash Balance Specification. The document will be published
with a few editorial changes to be made. Motion to disband the
209 group was approved.
- 906-Specification Task Group. Document was approved for publication,
and the group voted to disband.
One entity that met for the first time was the Acoustic Rating
Task Group chaired by Dave Moyer of Architectural Testing. The group's
purpose is to review AAMA 1801, as the document was first created
in 1997. This test method measures the sound transmission loss of
a door, window or glazed wall section. The Sound Transmission Class
(STC) and Outdoor-Indoor transmission Class (OITC) of the tested
product are generated from the test data.
Air infiltration and operating force are integral elements of
the acoustical performance of the tested unit and are therefore
required in the product's performance evaluation. This scope excludes
any interior door of window assembly. The primary units of measure
in the document are metric. The values stated in SI units are to
be regarded as the standard. The values given in parentheses are
for reference only. The document was approved with comments. The
group will re-ballot the change of curtainwall specimen in section
5.4 to 2000 mm X 2000 mm, to be the same as NFRC 100 and AAMA 1503.