| STRUCTURAL SILICONE GLAZING System utilizes silicone to bond glass to interior structural
members - also known as exterior flush glazing or stopless glazing. Specially fabricated
insulating glass units can be supplied after review of glazing details by HGP Technical
Services. They have increased sight lines that improve the integrity and life of the unit.
Due to compatibility limitations of silicone sealants, verification must be made of all
components before use in this system. HGP warranties do not apply if failure is caused by
the use of incompatible sealants.
SLOPED GLAZING (NON-RESIDENTIAL)
Insulating glass units for applications angled more than 15
degrees off the vertical plane are considered sloped. A review of glazing details may be
required by HGP's Technical Service Department. HGP recommends the use of either
monolithic heat strengthened laminated glass or insulating units with a tempered or heat
strengthened outboard lite and heat strengthened laminated inboard lite. These products
have desirable thermal and structural characteristics against wind, snow and thermal loads
and usually remain in the opening if broken,
GLAZING GUIDELINES
The following glazing guidelines are intended to assist the
design professional. Other publications are available from FGMA, AAMA, and SIGMA. The
glazing system must adequately support and cushion the glass to minimize loads from
mechanical and thermal stresses.
GLASS HANDLING
Care must be exercised in the handling and glazing of glass
to prevent damage to the glass edge. The glass must not contact the framing members during
glazing. A rolling block should always be used when rotating glass to avoid corner damage.
Glass must be protected from weld splatter, sand blasting and other impact damage. Alkali
or fluorinated materials released from concrete or masonry during rainstorms can stain or
etch glass. Weathering steels release oxides while aging which can result in stained glass
if proper, periodic cleaning is not done.
GLASS STORAGE
Glass should be kept on a lean of 5-7 degrees from vertical
using broad, sturdy uprights. Never store glass in direct sunlight without using an opaque
cover to protect it. |
