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For Offices, Schools, Stores, Resturants, Commercial and Industrial applications.

  • Approved for installation beneath automatic sprinkler systems with no increase in fire hazard insurance premiums.
  • Avoid added cost of sprinkler extensions and cutting holes in ceiling panels.
  • Eliminate unsightly sprinkler heads extending below the ceiling.
  • 100% waterproof panels will not sag, rot, mildew, or warp—excellent where moisture is a problem.
  • Washable—light weight—removable for easy cleaning.
  • High light reflectivity.
  • Available in 2' x 2' and 2' x 4'.
  • Attractive Smooth Finish.

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Product Packaging
  23¾" x 47¾ x 1"
23¾" x 23¾ x 1"
23¾" x 47¾ x ½"
Unit packaging 96 sq.ft./box. 192 sq.ft./box.g
Unit package size 24½" x 48½" x 12½" 24½" x 48½" x 12½"
Pieces per unit package 23¾" x 47¾" — 12 pieces
23¾" x 23¾" — 24 pieces

23¾" x 47¾" — 24 pieces
Weight per unit package 9.0 lbs. 9.0 lbs.
Price $35 / box (straight edge) $35 / box
  $45 / box (revealed edge)  
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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

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.



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 they are 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 the 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.

The polystyrene ceiling tiles listed in Section B are expanded from the modified grade bead resins produced by the manufacturers listed in Section A.

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

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