Day-Lite Vault Rooflight KS1000 DLVLT

Day-Lite Vault Rooflight KS1000 DLVLT

A factory-assembled rooflight unit for ease of install specifically designed to integrate with Kingpsan Topdek roof panels

  • U-Value: 1.1W/m2k
  • Light Transmission: Up to 60% when new
  • Solar Heat Gain Coefficient: As low as 0.55
  • Lengths: Unlimited run length
  • Application: Suitable for roof pitches of 0.72o or more after deflection
  • Non-Fragility Performance: Achieves ACR[M]001: 2014 Class B (500 joules test) 
  • Product Compatibility: Kingspan Topdek Roof Panels
  • Warranty: Guaranteed structural, thermal and UV resistance performance for up to 25 years

Technical & Downloads

Product Reference Height Above Panel (mm) Weight (kg/m2)* U-Value (W/m2k) Light Transmission (%)*** Solar Heat Gain Coefficient
KS1000 DLVLT 300 variable 1.1** 60 0.55
*Weight is dependent upon the Topdek roof deck thickness specificied. Please refer to the product data sheet for more information.
​** Standard U-value is shown above. Standalone U-value of FAU is 1.35W/m2K.
The U-value has been calculated using the method required by the appropriate National Building Regulations.
***Based on a clear polycarbonate finish. Light transmission, according to BS EN 410, is as measured on 600mm x 600mm samples.
Solar Heat Gain Coefficient (SHGC), according to BS EN 410, is the total solar energy that enters the interior of a building. Please contact the Kingspan Technical Services Department for more information.

CAD details

Kingspan Day-Lite Vault CAD DWG

Kingspan Day-Lite Vault CAD PDF


Kingspan Day-Lite Vault NBS

Kingspan Day-Lite products fully satisfy the internal and external requirements of the National Building Regulations achieving:
  • Euro Class B (internal);.
  • National Class AA and Euro Class BROOF(t4) (external).
All products achieve a minimum classification of B-s2,d0 when tested to EN 13501-1: 2007. For more information on fire performance please contact


Planet Passionate
Planet Passionate
Through our new Planet Passionate 10-year groupwide sustainability programme, we aim to make significant advances in the sustainability of our business and of our products.

Introducing Kingspan Day-Lite Vault

Construction simplicity, superior performance and structural integrity are just some of the benefits achieved when using our Kingspan Day-Lite Vault rooflight.