LECTURE 2: Glass Curtain Wall

HEAT ABSORBING (TINTED) HEAT REFLECTIVE (COATED).

VISION GLASS MAY BE __________ OR_______________________

4 MM AND 6 MM THICK.

Vision glass IS AVAILABLE IN VARIOUS THICKNESSES, BUT IS GENERALLY BETWEEN ______________________

FIBERGLASS SPACERS

_______________ ARE USED TO REDUCE HEAT LOSS AT THE EDGE OF THE IGU OR TO INCREASE THE INSIDE EDGE GLASS TEMPERATURE.

ASTM E-283,

"STANDARD TEST METHOD FOR DETERMINING THE RATE OF AIR LEAKAGE THROUGH EXTERIOR WINDOWS, CURTAIN WALLS AND DOORS UNDER SPECIFIED PRESSURE DIFFERENCES ACROSS THE SPECIMEN".

ASTM E-331,

"STANDARD TEST METHOD FOR WATER PENETRATION OF EXTERIOR WINDOWS, CURTAIN WALLS ANDS DOORS BY STATIC AIR PRESSURE DIFFERENTIAL".

Tempered laminated anneled

3 major types of glass

stick built system

A CLADDING AND EXTERIOR WALL SYSTEM WHICH IS HUNG ON THE BUILDING STRUCTURE FROM floor to floor.

UNITIZED CURTAIN WALL SYSTEM.

A GLASS AND ALUMINUM CURTAIN WALL FABRICATED AND INSTALLED AS A panel system IS REFERRED TO AS

Insulating Glass unit

A TYPICAL IGU CONSISTS OF TWO LAYERS OF GLASS WITH A SPACER BETWEEN THE PANES. THE SPACER SEPARATES THE GLASS PANES TO A UNIFORM CAVITY THICKNESS. what is IGU

TYPICAL IGU

A _____________ CONSISTS OF TWO LAYERS OF GLASS WITH A SPACER BETWEEN THE PANES

LAMINATED GLASS OR WIRE MESH GLASS

ARE USED FOR IMPACT STRENGTH AND FIRE RESISTANCE

anchors mullion horizontal rail (transom) spandrel panel vision glass

Components of a Curtain wall

4mm-6mm

Curtain wall system is AVAILABLE IN VARIOUS THICKNESSES, BUT IS GENERALLY BETWEEN ______ thick

LAMINATED GLASS

FOR GREATER SAFETY, _________ IS ALSO AVAILABLE.

FLOAT, TINTED (HEAT ABSORBING), WIRED GLASS, PATTERNED AND CATHEDRAL GLASS.

GLASS FOR CURTAIN WALLS IS AVAILABLE AS

FLOAT, TINTED (HEAT ABSORBING), WIRED GLASS, PATTERNED AND CATHEDRAL GLASS

GLASS FOR CURTAIN WALLS IS AVAILABLE AS

stick built system

IS INSTALLED BY HANGING THE VERTICAL MULLION FROM A FLOOR EDGE WITH A STEEL ANGLE, WHILE SLIDING THE LOWER END OF THE VERTICAL MULLION OVER AN INSERT ANCHOR IN THE VERTICAL MULLION ATTACHED BELOW

VISION GLASS

IS USUALLY FABRICATED FROM FLOAT GLASS

CURTAIN WALL

IT IS GENERALLY ASSEMBLED FROM ALUMINUM FRAMES, VISION GLASS AND SPANDREL GLASS (OR METAL OR STONE) PANELS TO ENCLOSE A BUILDING FROM GRADE TO THE ROOF.

Glass curtain walls

THE GLASS AND ALUMINUM CURTAIN WALL SYSTEM IS A MARVEL OF ENGINEERING AND ARCHITECTURE. • A TOTALLY NON COMBUSTIBLE SYSTEM OF GLASS AND ALUMINUM REQUIRING MINIMAL MAINTENANCE AND PROVIDING YEARS OF AESTHETIC QUALITY AND BUILDING ENVELOPE PERFORMANCE. • IT IS THE MOST ADVANCED EXTERIOR WINDOW WALL SYSTEM AVAILABLE FOR BUILDINGS • THE GLASS AND ALUMINUM CURTAIN WALL IS DESIGNED TO RESIST WIND AND EARTHQUAKE LOADS, TO LIMIT AIR LEAKAGE, CONTROL VAPOUR DIFFUSION, PREVENT RAIN PENETRATION, PREVENT SURFACE AND CAVITY CONDENSATION AND LIMIT EXCESSIVE HEAT LOSS (OR HEAT GAIN). IT IS FURTHER DESIGNED TO RESIST NOISE AND FIRE.

STICK BUILT SYSTEM.

THE OLDEST CURTAIN WALL TYPE IS THE

IN A UNITIZED SYSTEM,

THERE ARE THREE JOINTS ALONG EVERY MULLION AND RAIL in this system

stick built system

THERE ARE TWO JOINTS ALONG EVERY MULLION AND RAIL in this system

STICKBUILT SYSTEM, UNITIZED (OR PANEL) SYSTEM STRUCTURAL GLAZING SYSTEM (CAPLESS VERTICAL JOINTS).

Three system types for glass curtain walls

FLOAT GLASS

MAY BE HEAT TREATED TO BECOME HEAT STRENGTHENED GLASS OR TEMPERED GLASS TO PROVIDE GREATER RESISTANCE TO THERMAL AND MECHANICAL STRESSES.

unitized curtain wall system

MOST OF THE SYSTEM COMPONENTS ARE ASSEMBLED IN A PLANT UNDER CONTROLLED WORKING CONDITIONS.