Factory assembled GRP vault rooflights lap together to form rooflights of unlimited length with spanning capabilities up to 4 metres. Multivault GRP are delivered to site in a factory assembled ready to install form. Multivault GRP is ideal for all roof types and are fitted onto separate Kerbs, without any fixings penetrating the roof covering to preserve the principle of secret fix. The integrated Aluminium bar and the well fitting insulated aluminium end closures makes Multivault GRP a robust rooflight option.
Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Brett Martin Daylight Systems is consulted before specifying.
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| Expected Life (?) | 25 years | 100% |
| U-value (overall) (?) | 1.3 W/m2k | 100% |
| Visible Light Transmittance (?) | 58 % | |
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| Material (?) | GRP | |
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| Uniclass (?) | Pr_30_59_72 Rooflights | |
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| Typical Building Sector (?) | Domestic , Public | |
| Typical Building Type (?) | Commercial Premises , Schools | |
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| Appearance (?) | Translucent | |
| Product Type (?) | Curved , Low , Standard , Standing seam | |
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| Width (?) | 4000 mm | |