Technical Information
(Polycarbonate Glazed Rooflights)
TopLite Classic and TopLite Max
Thermoformed Polycarbonate
Domes and Pyramids
Glazed with 3mm UV stabilized solid polycarbonate sheets
Designed and manufactured to meet
BS EN 1873:2014+A1:2016
Complies with Part L1 and L2 of the Building Regulations
KEY PERFORMANCE DATA
ACOUSTIC REDUCTION: Triple Glazed Polycarbonate. Sound reduction (Rw) of c. 30-35 dB
FIRE RATING: BS 476-3:2004. AA
BS 476-7:1997. Class 1
LIGHT TRANSMISSION: 3mm solid sheet
(Typical Values)
SOLAR FACTOR: (G Values) Clear 3mm Polycarbonate
THERMAL PERFORMANCE: (U Values)
(Centre Pane)
WEIGHT (Glazing): 3mm Polycarbonate
INSTALLATION: These rooflights are designed to be installed directly onto a flat roof, by
means of a factory made upstand or a builder’s kerb provided by others.
KEY PERFORMANCE DATA
ACOUSTIC REDUCTION: Triple Glazed Polycarbonate. Sound reduction (Rw) of c. 30-35 dB
16mm Multiwall Polycarbonate. Sound reduction (Rw) of c. 18 dB
25mm Multiwall Polycarbonate. Sound reduction (Rw) of c. 18 dB
FIRE RATING: UltraLight. BS 476-3:2004. AA
(Polycarbonate) BS 476-7:1997 Class 1
B-s1, d0 (EN 13501-1)
UltraLight Max To All Major European Safety Standards Including
DIN V ENV 1187, DIN CEN TS 1187
LIGHT TRANSMISSION: 3mm solid sheet Polycarbonate 16mm Multiwall 25mm
(Typical Values)
Clear 87% 70% 49%
Diffused 84% N/A N/A
Opal 50% 55% 40%
Bronze 50% 26% 13%
SOLAR FACTOR: (G Values) Clear 3mm Polycarbonate Clear Multiwall
Triple skinned c. 0.57 16mm c. 0.62
Quadruple skinned c. 0.49 25mm c. 0.48
N.B. The use of opal glazing will improve these values
THERMAL PERFORMANCE: (U Values.) 3mm Polycarbonate. Triple skinned 1.8 W/m²K
(Centre Pane) Quadruple skinned 1.4 W/m²K
16mm Multiwall Polycarbonate 2.1 W/m²K
25mm Multiwall Polycarbonate 1.4 W/m²K
WEIGHT (Glazing): 3mm Polycarbonate Sheet 3.6 kg/m²
16mm Multiwall 2.4 kg/m²
25mm Multiwall 3.4 kg/m²
INSTALLATION: It is recommended that these glazing systems are installed at a minimum
pitch of 5°, up to a maximum of 90°.
UltraLight and UltraLight Max
Thermally Broken Aluminium
Polycarbonate Glazing Systems
Glazed with 3mm UV stabilized
solid or multiwall polycarbonate
UltraLight… Design compliance includes: BS 6399-2:1997
BS EN 1991-1-4:2005+A1:2010 Eurocode 1
BS 5516-1:2004
Complies with Part L of the Building Regulations
and CP3 Chapter V Pt 2 1972
UltraLight Max... Designed and engineered to the
highest national and international standards including
NEN-EN 1990, NEN-EN 1991 1-1, 1-3 and 1-4
Kwik-Glaze and Kwik-Safe
Interlocking Modular Glazing Systems
Glazed with 16mm or 25mm UV Stabilized
Multiwall Polycarbonate
Designed and manufactured to meet European
Regulatory Standards BS EN 13501
and ACR (M) 001; 2005 (Non Fragility)
Complies with Part L1 and L2 of the
Building Regulations and CPR 2011
KEY PERFORMANCE DATA
ACOUSTIC REDUCTION: 16mm Multiwall Polycarbonate. Sound reduction (Rw) of c. 18 dB
25mm Multiwall Polycarbonate. Sound reduction (Rw) of c. 18 dB
FIRE RATING: BS 476-3:2004. AA
BS 476-7:1997 Class 1
B-s1, d0 (EN 13501-1)
LIGHT TRANSMISSION: Multiwall Polycarbonate 16mm 25mm
Clear 70% 49%
Opal 55% 40%
Bronze 26% 13%
SOLAR FACTOR: (G Values) 16mm c. 0.62
25mm c. 0.48
THERMAL PERFORMANCE: (U Values.) 16mm Multiwall Polycarbonate 2.1 W/m²K
25mm Multiwall Polycarbonate 1.4 W/m²K
WEIGHT (Glazing): 16mm Multiwall Polycarbonate 2.4 kg/m²
25mm Multiwall Polycarbonate 3.4 kg/m²
INSTALLATION: This glazing system can be installed from a minimum pitch of 5° to the
maximum of 90°
KEY PERFORMANCE DATA
ACOUSTIC REDUCTION: Triple Glazed Polycarbonate. Sound reduction (Rw) of c. 30-35 dB
FIRE RATING: BS 476-3:2004. AA
BS 476-7:1997. Class 1
LIGHT TRANSMISSION: 3mm solid sheet Clear Diffused Opal
Bronze
SOLAR FACTOR: (G Values) Clear 3mm Polycarbonate Triple skinned
Quadruple skinned
THERMAL PERFORMANCE: (U Values.) Double skin
(Centre Pane) Triple skin
Quadruple skin
WEIGHT (Glazing): 3mm Polycarbonate 3.6 kg/m²
INSTALLATION: These rooflights are designed to be installed directly onto a flat roof, by
means of a builder’s kerb provided by others.
Poly-Light
All-Polycarbonate Interlocking
Barrel Vaults of Unlimited Length
Glazed with 3mm UV stabilized solid polycarbonate sheets
Designed and manufactured to meet
BS EN 1873:2014+A1:2016
Complies with Part L1 and L2 of the Building Regulations
87%
84%
50%
50%
Clear
Diffused
Opal
Bronze
Triple skinned
Quadruple skinned
c. 0.57
c. 0.49
Double skin
Triple skin
Quadruple skin
2.6 W/m²K
1.8 W/m²K
1.4 W/m²K
3.6 kg/m²
87%
84%
50%
50%
c. 0.57
c. 0.49
2.6 W/m²K
1.8 W/m²K
1.4 W/m²K