Batt Insulation Over Suspended Ceiling

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.

Batt insulation over suspended ceiling.

The insulation contractors association of america s technical bulletin 27. It is available in thicknesses to 12 inches and r values up to r 38. Fit and secure batt insulation between open ceiling joists. 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.

For the best results use batts that have paper facing. The batt insulation should be unfaced and can be of various thicknesses varying on the stc required. Rigid insulation temlock 1 thick 1 2psf cord 1 thick 0 7psf gold bond 1 thick 1 5psf styrofoam 1 thick 0 2psf foam glass 1 thick 0 8psf rigid fiberglass 1 thick 1 5psf roll or batt insulation rock wool 1 thick 0 2psf glass wool 1 thick 0 06psf alpol 0 1psf. 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.

Then laying 8 batt insulation above it and stapling 6 mil poly below. Also improves ceiling stc acoustical performance by 4 10 points. 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. 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.

Acoustical ceiling batts are available unfaced and kraft faced without stapling tabs for installation on suspended ceilings. The best way to insulate a drop ceiling is to install batt insulation between the ceiling joists before installing the hanging grid. This installation would proceed as any insulation installation. The air will pass right through the batt.

Sonobatts insulation is designed for use over ceiling panels in a suspended ceiling system.