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The
LGSF 'decision/supply chain' as it currently exists involves the following
eleven players:
1-Building
owners, who must see and appreciate the economic advantages in the
framing system being chosen. They must be convinced that LGSF fits all
their programmatic requirements.
2-Architects,
who are intimately involved with the early choice of a building's framing
system. However, most architects don't have an adequate understanding
of how LGSF framing affects costs, codes, fire-protection, and life cycle
operating costs. They must typically look to others who have more knowledge
and experience, and it's at this point where they will hear many different
and often confusing opinions.
3-Structural
engineers (SE) are usually selected by, and work under the direction
of, the project architect. SE's prepare conceptual design drawings, which
incorporate general design standards and methods of detailing. At this
point in time, most SE's generally also don't have a thorough understanding
of costs, codes, detailing, etc. On some projects an SE 'of record' might
work with an engineer who has more experience with LGSF.
4-The General
Contractor (GC) usually helps the owner define the total project scope
of work, including the LGSF Scope of Work. He initially prepares an estimated
project budget. If LGSF is used, the GC must is responsible for coordination
between the A&E team, the LGSF component supplier(s), and the LGSF
installer.
5-Component
manufacturers, who prepare shop drawings for fabrication of wall panels.
In some cases a component manufacturer may hire a structural engineer
directly to form a 'design-build' delivery team which can deliver both
structural engineering design and the physical LGSF products.
6-LGSF Consultants,
who are very rare, can specialize in assisting the whole A&E design
team with information used to make key decisions during the critical design
phases of the project.
7-Roll-forming
companies (RFC) usually sell their rolled products to either (a) component
manufacturers (above), or (b) steel-framing subcontractors-usually large
drywall companies.
8-Local Retail
Outlet. Some RFC, like Dietrich, sell products only through a local
supply yard, rather than selling straight to the end-user.
9-LGSF Truss
Manufacturers, and their supporting truss engineering staff, who over-stamp
truss shop drawings prepared by the local manufacturer. Some component
manufacturers build both wall panels and trusses.
10-LGSF Installer,
is usually either a framing company, or a local drywall company with previous
experience.
11-Minor sub-component
manufacturers. Local RFC's usually cannot supply every LGSF component,
for example: holdown systems, shear wall panels, connectors, and other
components.
 
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