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Properties
Multivault rooflights are suitable for a wide variety of
applications.The characteristics of each Multivault system depend
primarily on the glazing material used. |
PROPERTY |
MULTIVAULT
GRP |
MULTIVAULT
POLYCARBONATE / MULTIVAULT SSR |
LIGHT
TRANSMISSION |
Provides diffused light, limiting glare
and giving an even distribution of light at ground level with
few shadows.The light transmission for double and triple skin
Multivaults GRP is 65 70%. |
Light transmission will be determined by
tint chosen. For example, a double skin clear option provides
almost 80% direct light into the building. |
FIRE
PERFORMANCE |
The inner skin of Multivault GRP has Class
1 surface spread of flame fire rating whilst the outer skin
has Ext. SAB rating. Multivault GRP does not soften and is effective
in containing flames, smoke and hot gases. |
Polycarbonate is a self venting material
that softens at relatively low temperatures allowing fire, smoke
and hot gases to escape. Class 1(Y) deemed SAA. |
SERVICE
TEMPERATURE |
GRP can withstand both high and low service
temperatures ranging from -20°C to +80°C. |
Polycarbonate's mechanical performance is
known to remain stable in prolonged service in temperatures
ranging from -40ºC to +100ºC. |
IMPACT
RESISTANCE |
Multivault GRP has an impact resistance
which complies with CDM regulations. |
Multivault Polycarbonate has exceptional
impact resistance and is particularly suitable for use in areas
where breakage is a potential problem. Polycarbonate has exceptional
shatter resistance, up to two hundred times greater than glass. |
| SAFETY |
Double and triple skin Multivaults are rated Class B Non-fragile.
The out of plane construction reduces the likelihood of people
accidentally stepping on the rooflight. Non-fragile lining panels
can be used with most vaulted rooflight systems to ensure safety
to roofer during construction and satisfy the need, where necessary,
of lining out the building swiftly during construction. |
| PART L |
Double skin polycarbonate Multivaults have a U value of 2.8W/m2K.
Triple skin polycarbonate Multivaults have a U value of 2.0W/m2K. |
LONGEVITY
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Special UV protective films in the weather sheet give a Multivault
GRP a life expectancy of up to 30 years. |
Multivault Polycarbonate is manufactured from high quality
UV stable polycarbonate sheet. Light transmission will be maintained
for at least 10 years and weatherability for 20 years. |
| ROOF TYPES |
Flat, curved, standing seam, low and standard pitch roofs. |
Flat, curved, standing seam, low and standard pitch roofs.
Multivault SSR is engineered for all standing seam roofs. Unique
apex adapter and jointing system allows easy length adjustment. |
PROPERTY |
MULTIVAULT
GRP |
MULTIVAULT
POLYCARBONATE / MULTIVAULT SSR |
Glazing |
Double & triple skin |
Double & triple skin |
Tints |
Translucent (other tints are available
for special orders) |
Clear, Bronze, Opal,Textured |
Curve radius (mm) |
3150 |
– |
Span Width (mm) |
Up to 4000 |
1000 & 1200 |
Module Length (mm) |
255 & 1020 |
200 & 2000 |
Weight (kg/m 2) |
4.7 |
5.4 |
Service Temperature Range (ºC) |
-40 to +80 |
-40 to +100 |
Light Transmission (Double skin - clear%) |
69 |
79 |
U value (W/m2K) Double skin |
2.8 |
2.8 |
Triple skin |
2.0 |
2.0 |
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