These aluminum fire rated systems are performance tested to meet the higher and
tougher requirements mandated by the Code under ASTM E-119 / UL 263. This allows designs with larger
rated glass areas, in almost cases in excess of 25% wall area.
Why may you have a
Under the recent Code editions, section 715 or 716, depending on the edition date, requires
that any assembly requiring a rating in excess of forty-five minutes must meet the requirements under ASTM E119
or UL 263.
How does this differ from say the common Hollow Metal systems widely
used for a number of years?
Under ASTM E119 or UL 263, the systems must meet the requirement
of integrity during the fire as well as control of the radiant heat energy. The system must dampen the heat given off
from the fire from freely passing through the framing, door and glass from the fire to the non-fire side. This requires:
- Framing and door sections to be of an insulated style to control this heat and minimize any transfer
glass, commonly referred to as laminated intumescent, as a component to also allow normal clear view and, in case of fire,
to also minimize such heat transfer
- Employ special fire rated hardware, tested with the framing and
doors, to fit into and operate properly with the sections
- Test all components, fixed framing, door frames, doors,
glass and hardware, together as a System
The standard requires not only the testing,
but that such systems be independently listed, under continuous inspection service, and be permanently labeled to show compliance
with the standard, its rating and application. This allows for ease of selection and inspection in the field.
hollow metal fixed frames and non-insulated doors are not designed to meet the ASTM E119 standard and are limited by Code
to applications requring a rating of forty-five minutes or less AND are limited to a maximum area of 25% or less of the
To meet the various needs of designers and owners for aesthetic looks
and Code compliance, systems from Aluflam North America cover rating levels from twenty
minutes to two hours, allowing multiple options at competitive pricing.
Contact us for your questions,
special glass and hardware options.
Hollow metal frames for use as sidelights, transoms
and borrowed frames can carry ratings of up to 45 minutes only as they do not meet the temperature rise requirements under
the Code. For specifics please consult the listing for the products being considered for doors, framing and glazing into them.
this more costly that conventional HM framing and doors? How about the other rated systems which are insulated steel, with
and without aluminum covers for aesthetics?
Compared to conventional HM systems, the Aluflam aluminum system is
more costly and does not compete directly with applications where those systems may be a better budget fit, yet those conventional
systems do have limitations. Once common example is when a designer and owner wishes to have a large open feel with minimum
visual obstructions which a HM system may require due to listing maximum sizing for both glazing and frame sizing areas. In
such cases a butt-glazed system may be a more costly solution for a 45-minute rated HM system.
In addition on one-hour
rated walls, some 45-minute applications may be allowed, but are limited in maximum wall area. Being that Aluflam's systems
are tested as wall systems (ASTM E119 / UL 263), that is not a factor in such applications allowing for larger uses.
comparison with insulated steel and steel core systems, the Aluflam system's pricing is typicall very favorable and does allow
more finish and aesthetic options that match up visually with conventional storefront systems.
The specifics of each
application affect pricing, so we can assist you with evaluation of a specific project to better define your overall costing
with all applicable information on request.