FIRE RATED GLASS WITHOUT INSULATION (E, EW-RATED)


E-RATED GLASS

No flames or hot gases on the non-fire side
The glass remains transparent in case of fire
  • Monolithic glass based on Soda-Lime
  • Wired glass, also as figured glass

        

High heat radiation
From the glass surface

+

Transmission
Through the glass


Glass surface temperature app. T=550oC (after 30 min)
Remain transparent in case of fire


EW-RATED GLASS

Same as Class E plus measured radiated heat
in front of the glazing may not exceed15 kW/m2.

EW glass is available in two optional specifications:
  • Coated safety glass
  • Float or toughened glass with interlayer

        


Coated Safety glass



Limited heat radiation
From the glass surface

+

Transmission
Through the glass


Glass surface temperature app. T=520oC (after 30 min)
Reduced radiation by means of reflective coating
Remains transparent in case of fire - "Reflection"



Float or toughened glass with interlayer

Energy of furnace



Low heat radiation
From surface


No direct radiation
through the glass



stable insulating, cooling foam
cracked / melted glass

Glass surface temperature app. T=265oC (after 30 min)
Non transparent in case of fire - "Absorption"



SPECIFICATIONS OF ALTERNATIVE TYPES OF GLASS

Type of glass Thickness
( mm )
Fire
rating
Sound
reduction
Maximum
certified
dimensions
( mm )
Standards
SINGLE LAYER GLASS
Wired glass 30/60' 6 30/60 32 dB 1760x3000 (or max 5,29m2)1
1170x3000 (or max 3,5m2)2
British
BS 476:Part22
Wired glass 90/120' 6 E90/E120 32 dB 1000x3000 (or max3,0m2)3
930x3000 (or max2,8m2)4
British
BS 476:Part22
Clear (toughened) glass 6 E30 30 dB 1351x2635
1841x1934
max 3,56m2
British
BS 476:Part22
Clear (toughened) glass 6 E60/EW60 30 dB 1039x2476
1416x1817
max 2,57m2
British
BS 476:Part22
LAMINATED GLASS
Laminated 60' 12 EW60 30 dB 1034x2465
1809x1410
max 2,55m2
British
BS 476:Part22
Laminated 120' 13 EW120 38 dB 1200x2200 European
EN 1364-1
DOUBLE GLAZED UNITS
Wired glass 6mm/
8mm gap/
6mm Toughened
20 E30 33 db
37 dB5
1760x3000 (or max 5,29m2) British
BS 476:Part22
Clear (monolithic) 6mm /
10(12)mm gap/
4(6)mm monolithic or
toughened
20-24 E60 33 db
37 dB5
1039x2476
1416x1817
max 2,572
British
BS 476:Part22
Clear (monolithic) 6mm /
10(12)mm gap/
4+4mm Laminated
24-26 E60 38 dB
42 dB5
1039x2476
1416x1817
max 2,572
British
BS 476:Part22
Clear (monolithic) 6mm /
10(12)mm gap/
4(6)mm monolithic or
toughened
26 E120 38 dB
42 dB5
1200x2200 European
EN 1364-1
1 For a fire rating E30
2 For a fire rating E60
3 For a fire rating E90
4 For a fire rating E120
5 Using SF6 gas


PANELS:

Optionally part of the glazing area may be replaced by fire rated steel panel of sandwich composition (steel plate 1,5mm + gypsum plate 12,5mm + steel plate 1,5mm).

Double leaf doorsets partly covered by steel panels of sandwich composition



Without louvers
for fire rated construction
       

With louvers
for standard (non-fire rated) construction





Copyright 2002 MCM Ltd.
STEEL: The inovative option for Glazing Systems