4.1005.4 Accessible Floors—Loose Fill Over Existing Insulation

Existing insulation will be in contact with the air barrier Air barrier The separation between the interior and exterior environments of a building that slows air flow to the point that no smoke movement is visible at 50 pascals of pressure difference across the boundary prior to installing additional insulation on top

Insulation will be adequately marked for depth a minimum of every 300 square feet of attic area, with measurement beginning at the air barrier Air barrier The separation between the interior and exterior environments of a building that slows air flow to the point that no smoke movement is visible at 50 pascals of pressure difference across the boundary

All electrical junction boxes will be flagged to be seen above the level of the insulation

Open electrical junction boxes will have covers installed

Insulation dams and enclosures will be installed as required

Insulation will not be allowed on top of non- IC IC Insulation contact rated can light Can light A light fixture (or can) that is recessed into the ceiling boxes or between a heat-generating appliance and a dam, unless material is rated for contact with heat generating sources