Hello,
I'm looking to install some downlights in an outside single storey studio. The building has a flat sloped OSB roof with felt on top, and is insulated with celotex between 4 x 2 joists, the internal ceiling is 5mm birch ply. The total gap between the ceiling (inside the room) and the roof is 100mm. I can get the following from screwfix: http://www.screwfix.com/p/adjustable-brushed-chrome-mains-voltage-fire-rated-downlight-240v/42935 which require a depth of 89mm but is there a minimum gap required between the top of the light and the roof or will 11mm be sufficient?
If not can anyone recommend downlights that can fit in a ceiling with 100mm between the ceiling and the roof and do they need to be fire rated?
Thanks in advance,
J
I'm looking to install some downlights in an outside single storey studio. The building has a flat sloped OSB roof with felt on top, and is insulated with celotex between 4 x 2 joists, the internal ceiling is 5mm birch ply. The total gap between the ceiling (inside the room) and the roof is 100mm. I can get the following from screwfix: http://www.screwfix.com/p/adjustable-brushed-chrome-mains-voltage-fire-rated-downlight-240v/42935 which require a depth of 89mm but is there a minimum gap required between the top of the light and the roof or will 11mm be sufficient?
If not can anyone recommend downlights that can fit in a ceiling with 100mm between the ceiling and the roof and do they need to be fire rated?
Thanks in advance,
J