Frequently Asked Questions
Glass:
Q: What is the maximum size of glass that I can get?
A: Although glass is made in very large lites at the float glass
plant, the application of the
glass
will dictate the sizes that can be provided on any given project.
Criteria such as type of glass (coated, insulated, laminated,
silkscreened, patterns),
windload conditions, safety locations,
fire ratings, equipment for handling, shape of
glass, security
requirements, and more will all have an effect on the glass sizes.
Q: Which coatings or tints should I use?
A: There are literally hundreds of coatings and glass
types available today. The selection
depends on the project requirements. Is heat gain a major
concern; what appearance
is
desired; what is the budget in both time and dollars; how does
this coating impact
the
sizes allowed?
Q: What security / blast resistant / fire-rated product
should I use?
A: The level of protection needs to be established by
the project architect in compliance
with the owners requirements and/or code requirements.
This will determine the glass
and frame composition.
Panels:
Q: What finish or color can I get?
A. Almost any color/finish is available. The choiceswill
affect delivery and price.
Each panel manufacturer may have colors that
are standard for their company, but
not for competitive manufacturers; this may
limit the bidders on a project. Certain
finishes may only be available in limited sizes.
Q: What sizes are available in panels?
A: Limitations vary by manufacturer and materials. Products
such as ceramic tiles, terra
cotta, and stone have different
size limitations than metal panels. The esthetics of the
project
and practical handling concerns should be taken into consideration.
Larger
panels may require internal reinforcing to meet windload
requirements.
Q: What is the rainscreen principal and why should I use
it?
A: The panel (whatever the type) acts as a pressure-equalized “screen” on
the exterior
of the building. There is no caulking in the joints
between the panels, but a baffle is
used to prevent major weather
penetration. Any water that penetrates the exterior
face
will be weeped back to the exterior before it penetrates the
building envelope.
The system does not depend on a caulk joint
to provide weather protection, nor does
it require the
maintenance of caulk joints. |