Suspend-a-Ceil'Suspend–a–Ceiling, plastic suspended ceilings of translucent or opaque panels are used to conceal ducts, sprinkler piping, lighting fixtures or for decorative purposes. All products are of low combustibility. Because Suspend–a–Ceiling is designed to be heat sensitive, promptly moving out of their setting, they will not significantly interfere with the operation of automatic sprinklers located above. When other building components and occupancy do not require sprinkler protection, these products may be used without creating such a need.

Restraining clips must not be used to hold Suspend–a–Ceiling panels in their metal suspension frame. Clips which have been tested may be used for this purpose. Painting or coating the panels is prohibited since this may insulate and therefore hinder the immediate drop-out response to the early stage of a fire. However, panels which have been tested with a factory-applied coating may be used.

Unless otherwise indicated in the listings, all polystyrene panels are nominal 1.0 lb/ft3 (16.0 kg/m3) density.

Application Instructions
Clips, if used to prevent normal drafts from lifting the panels, should limit the upward motion only, and permit the panels to drop from the suspension system without restraint.

Painting or coating of the panels is not recommended since this may hinder the ease of drop-out in the event of a fire. However, if panels are to be painted, use only rubber or water (latex) based paints.

Physical Properties
Units ASTM Results
E84 5-15
Coefficient of thermal expansion
in/(in)(F) D696 0.000035
Maximum exposure temperature

Up to 167
U p to 75
Compressive strength at 10% deflection
psi D1621 10-14
Flexural strength
psi C203 25-30
Water vapor transmission
perm in C344 1.2-3.0
Water absorption (by volume)
% C272 Less than 2.5

*This numerical Flame Spread Rating is not intended to reflect hazards presented by this or any other material under actual fire conditions.
The higher the R-value, the greater the insulating power. Ask your seller for the fact sheet on R-values.

Tested by Underwriters Laboratories to provide a flame spread rating of 5-15, well below the 25 rating required by most municipalities to qualify an interior finish as acceptable. Suspend-a-Ceil’ drop in panels meet Federal Specification HH-I-524C, Type I. This product conforms to the Uniform Building Code (ICBO); The Basic Building Code (BOCA); The Standard Building Code (SBCCI), and has F.H.A