As all bespoke roof window systems are individually made to order, the Declaration of Performance (DoP) will be unique for each rooflight. Some of the essential characteristics, like fire resistance, watertightness, impact resistance and resistance to wind load, will be based on the product type, size and variant you chose.
To see a specific DoP, please find the appropriate product code in our Build Your Own configurator and then use it to create your own DoP here