3.2.6
Glass
Install in accordance with manufacturer's recommendations as modified
herein. [Install insulating glass units made with heat absorbing glass
with heat absorbing pane on exterior side.]
3.2.6.1
Inspection of Sash and Frames
Before installing glass, inspect sash and frames to receive glass for
defects such as dimensional variations, glass clearances, open joints, or
other conditions that will prevent satisfactory glass installation. Do not
proceed with installation until defects have been corrected.
3.2.6.2
Preparation of Glass and Rabbets
Clean sealing surfaces at perimeter of glass and sealing surfaces of
rabbets and stop beads before applying glazing compound, sealing compound,
glazing tape, or gaskets. Use only approved solvents and cleaning agents
recommended by compound or gasket manufacturer.
3.2.6.3
Positioning Glass
Set glass from inside the building unless otherwise indicated or specified.
Maintain specified edge clearances and glass bite at perimeter. Maintain
position of glass in rabbet and provide required sealant thickness on both
sides of glass. For glass dimensions larger than 1270 united millimeters
50 united inches, provide setting blocks at sill and spacer shims on all
four sides; locate setting blocks one quarter way in from each jamb edge of
glass. Where setting blocks and spacer shims are set into glazing compound
or sealant, butter with compound or sealant, place in position, and allow
to firmly set prior to installation of glass.
3.2.6.4
Setting Methods
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NOTE: Select methods applicable to the project
conditions and details. Delete non-applicable
methods. Methods listed are typical for many glass
and sealant manufacturers; other suitable methods
may also be included.
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Apply glazing compound, glazing sealant, glazing tape, and gaskets
uniformly with accurately formed corners and bevels. Remove excess
compound from glass and sash. Use only recommended thinners, cleaners, and
solvents. Strip surplus compound from both sides of glass and tool at
slight angle to shed water and provide clean sight lines. Secure stop
beads in place with suitable fastenings. Do not apply compound or sealant
at temperatures lower than 4 degrees C 40 degrees F, or on damp, dirty, or
dusty surfaces. After glazing, fix ventilators in sash so they cannot be
operated until compound or sealant has set.
a.
Use sealant glazing to completely fill channel on edges and on
both sides of glass for [_____].
b.
Use sealant and tape glazing, with glazing sealant for cap bead
above glazing tape against fixed exterior stops and glazing tape
full height against removable interior stops for [_____].
SECTION 08900
Page 29
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