The simple answer is that we’ve made them using our patented fire-rated glass and steel technology, and then tested them with an accredited 3rd-party laboratory.
Fire-rating is a part of building standards that downlights must adhere to. Many buildings around the world, especially in the UK, use a timber joist structure for floors and ceilings. Timber is flammable. To avoid the floor collapsing in the case of a fire in the room below, building standards specifies flame-retardant plasterboard that prevents the ingress of fire for up to 30, 60, or 90 minutes (depending on which floor you’re on – you need longer the higher up a building you are).
Installing downlights means cutting a hole in the plaster board, and this re-exposes the timbers joists to flame risk. To counteract this, fire-rated downlights are built to plug the hole in the plasterboard and maintain the 30, 60, or 90 minute rating.
You should only trust downlights that are 3rd-party certified by an accredited test lab to meet fire-rating standards for local building regulations. In the UK, this means testing the luminaires to BS 476 or BS EN 1365-2.
Every Nova luminaire has a test report that covers the specific fitting for use with each type of timber and I-joist

