Shallow ceiling housings are ideal for locations with 6 Inch joists and tighter ceiling clearances. IC Recessed housings are high quality, light weight units ideal for use in insulated ceilings. Air-tight construction reduces energy costs by reducing the amount of air escaping through the ceiling. Rated for direct contact with insulation (except spay foam insulation) and combustive materials, IC housings are easy and quick to install and accept a wide variety of high quality, attractive finishing trims.