This CPD presentation will give you an insight into the origins of Toplighting and Conservation style rooflights. It focuses on balancing modern performance with an authentic aesthetic on heritage roof windows, compliance requirements for heritage properties and considering occupants' wellbeing through alternative applications. The CPD focuses on how to design and specify the correct rooflight for historic properties of significance, ensuring this balance is achieved. By the end of this CPD delegates should have: 1. A greater understanding of the origins of Toplighting and conservation rooflights. 2. Knowledge on the importance of balancing authenticity and modern performance with conservation roof windows on heritage. 3. Full understanding of the current legislation for thermal performance required for rooflights on pitched roofs. 4. Understand how different applications can provide the best solution to respect the character of the building.