Batt Insulation Over Suspended Ceiling

The national electrical code prohibits installation of any insulation over or within 3 76 mm of recessed light fixtures unless approved insulated ceiling ic lighting fixtures are used.

Batt insulation over suspended ceiling.

This installation would proceed as any insulation installation. For the best results use batts that have paper facing. Also improves ceiling stc acoustical performance by 4 10 points. The batt insulation should be unfaced and can be of various thicknesses varying on the stc required.

Applying batt insulation above suspended ceilings to meet code addresses and recommends practices known to conform to the requirements of the international building code and to all three model building codes. The insulation contractors association of america s technical bulletin 27. Includes planning equipment and material acquisition area preparation and protection setup and cleanup. Batt ceiling insulation installation labor basic basic labor to install batt ceiling insulation with favorable site conditions.

The best way to insulate a drop ceiling is to install batt insulation between the ceiling joists before installing the hanging grid. Batt insulation above suspended ceilings have been used for years for sound control and is being used a little less in todays economy due to the improved stc ratings of drop in tiles that are available. My thoughts are that putting sonobatt directly over the t bar will not work aside from poor service access there will be no air barrier between the conditioned office space below and the non conditioned air above the t bar. Acoustical ceiling batts are available unfaced and kraft faced without stapling tabs for installation on suspended ceilings.

Dropped ceiling grids are typically 2 foot by 2 foot or 2 foot by 4 foot so they accommodate standard 24 inch fiberglass insulation batts. Then laying 8 batt insulation above it and stapling 6 mil poly below. It is available in thicknesses to 12 inches and r values up to r 38. Sonobatts insulation is designed for use over ceiling panels in a suspended ceiling system.

If you are seeking to add insulation to a suspended ceiling that is already in place however you will have to rest the batt insulation on top of.