*GLASS

A hard, brittle inorganic substance,

usually transparent or translucent substance,

produced by fusing silica together with a flux, and a stabilizer

into a mass that cools to a rigid condition

without crystallization.

MANUFACTURING

SHEET GLASS PLATE GLASS FLOAT GLASS

TYPES OF

GLASS

REFLECTIVE GLASS

HEAT-ABSORBING GLASS

WIRE GLASS FIGURE GLASS

CATHEDRAL GLASS LOW- EMISSIVITY GLASS

ANNEALED GLASS

HEAT-STRENGTHENED GLASS

TEMPERED GLASS

LAMINATED GLASS

SECURITY GLASS ACOUSTICAL GLASS

ROLLED PLATE GLASS

INSULATING GLASS

Classification of Sheet Glass

Window Glass- used for glazing windows doors and storm sash in residential buildings where good light and vision are required at moderate cost.

Heavy Sheet Glass- used for glazing windows and doors where greater strength is required but where slight distortion is not objectionable.

Picture Glass- used for covering pictures, photographs, maps, charts projector slides and instrument dials.

GLASS PRODUCT GLASS BLOCKS

FUNCTIONAL1. LIGHT DIRECTING BLOCK2. LIGHT DIFFUSING BLOCK3. GENERAL PURPOSES BLOCK

DECORATIVE / ARCHITECTURAL GLASS

SOLID GLASS BRICK

*GLAZING

THE PAINS OR SHEETS OF GLASS OR OTHER TRANSPARENT MATERIAL MADE TO BE SET IN FRAMES,

AS IN WINDOWS, DOORS, AND MIRRORS.

METHODS OF GLAZINGDOUBLE GLAZING

THE INSTALLATION OF TWO PARALLEL PANES OF GLASS WITH A SEALED AIR SPACE BETWEEN TO REDUCE THE TRANSMISSION OF HEAT AND SOUND.

FACE GLAZINGTHE SETTING OF A GLASS PANE IN A

RABBETED FRAME, HOLDING IT IN PLACE WITH GLAZIER’S POINTS, AND SEALING IT WITH A BEVELED BEAD OF PUTTY OR GLAZING COUMPOUND.

• PUTTY- A COMPOUND OF WHITING AND LINSEED OIL, OF DOUGHLIKE CONSISTENCY WHEN FRESH, USED IN SECURING WINDOWPANES OR PATCHING WOODWORK DEFECTS.

• FACE PUTTY- THE PUTTY OR GLAZING

COMPOUND FORMED ON THE EXTERIOR SIDE OF GLASS AN EVEN BACKING.

• BEDDING- A THIN LAYER OF PUTTY LAID IN THE RABBET IN A WOOD SASH TO GIVE A PANE OF GLASS AN EVEN BACKING.

• GLAZIER’S POINT- A SMALL, POINTED PIECE OF SHEET METAL FOR HOLDING A GLASS PANE IN A WOOD SASH UNTIL THE FACE PUTTY HAS HARDENED.

WET GLAZINGTHE SETTING OF GLASS IN A WINDOW

FRAME WITH GLAZING TAPE OR A LIQUID SEALANT.

GLAZING TAPE-A PERFORMED RIBBON OF SYNTHETIC RUBBER HAVING ADHESIVE PROPERTIES AND USED IN GLAZING TO FORM A WATERTIGHT SEAL BETWEEN GLASS AND FRAME.

CAP SEALANT-AN ADHESIVE LIQUID OR SYNTHETIC RUBBER INJECTED INTO THE JOINT BETWEEN A GLASS PANE OR UNIT AND A WINDOW FRAME, CURING TO FORM A WATERTIGHT SEAL.

GLAZING BEAD-A WOOD MOLDING OR METAL SECTION SECURED AGAINST THE EDGE OF A GLASS PANE OR UNIT TO HOLD IT IN PLACE.

DRY GLAZINGTHE SETTING OF A GLASS IN A

WINDOW FRAME WITH COMPRESSION GASKET INSTEAD OF GLAZING TAPE OR A LIQUID SEALANT.

COMPRESSION GASKET- A PERFORMED STRIP OF SYNTHETIC RUBBER OR PLASTIC COMPRESSED BETWEEN A GLASS PNAE OR UNIT AND A WINDOW FRAME.

LOCKSTRIP GASKET- A PERFORMED GASKET OF SYNTHETIC RUBBER FOR SECURING A GLASS PANE OR UNIT IN A WINDOW FRAME OR OPENING HELD IN COMPRESSION BY FORCING A KEYED LOCKING STRIP INTO GROOVE IN THE GASKET.

• GLASS SIZE –(GLAZING SIZE) THE SIZE OF A GLASS PANE OR UNIT REQUIRED FOR GLAZING AN OPENING, ALLOWING FOR ADEQUATE EDGE CLEARANCE.

• EDGE BLOCK- (CENTERING SHIM, SPACER) ONE OF THE SMALL BLOCKS OF SYNTHETIC RUBBER PLACED BETWEEN THE SIDE EDGES OF A GLASS PANE OR UNIT AND A FRAME TO CENTER IT.

• FACE CLEARANCE- THE DISTANCE BETWEEN THE FACE OF A GLASS PANE OR UNIT AND THE NEAREST FACE OF ITS FRAME OR STOP.,MEASURED NORMAL TO THE PLANE OF THE GLASS.

• BITE- THE AMOUNT OF OVERLAP BETWEEN THE EDGE OF A GLASS PANE OR UNIT AND A WINDOW FRAME.

• EDGE CLEARANCE- THE DISTANCE BETWEEN THE EDGE OF A GLASS PANE OR UNIT AND A WINDOW FRAME.

• SETTING BLOCK- ONE OF THE SMALL BLOCKS OF LEAD OR SYNTHETIC RUBBER PLACED UNDER THE LOW EDGE OF A GLASS PANE OR UNIT TO SUPPORT IT WITHIN A FRAME.

GLAZING SYSTEMGLASS MULLION SYSTEM

BUTT-JOINT GLAZING

FLUSH GLAZING

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TMF