Guide

Start with the space, not the sample. Pull the occupancy classification and identify which surfaces are exits, exit-access corridors, or general rooms, because each carries its own minimum finish class. The wallcovering schedule should call out the required class per area so nothing gets specified by habit.

Only then match products. A single project often needs Class A in the corridors and can accept Class B or C in offices, so one building may legitimately use two or three ratings. Documenting which product goes where prevents a Class C covering from ending up in a stairwell.

For sign-off, the reliable package is the manufacturer's ASTM E84 test report with FSI and SDI, a certificate tying the tested product to the ordered product, and confirmation of the tested substrate. Keep these with the submittals rather than promising to find them later.

Type II vinyl contract wallcoverings are common in this space because they routinely test Class A and stand up to corridor abuse, but the rating still travels with the specific product line and construction, not the category. Never assume a substitution keeps the rating.

The E84 result reflects an assembly, so the adhesive and wall type used on site should be consistent with what was tested. Some ratings are reported over specific gypsum or cement-board substrates, and hanging the same covering over a different backing can change its fire behavior.

Before the job closes out, confirm the installed system matches the tested one and that the retained documentation names it. A perfect product installed over an untested assembly can still leave a gap the inspector is right to flag.