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{
"slug": "classawallcovering",
"domain": "classawallcovering.com",
"siteName": "Class A Wallcovering",
"port": 11109,
"siteEmail": "info@classawallcovering.com",
"tagline": "Class A fire-rated wallcoverings.",
"heroHeadline": "Class A Wallcovering",
"heroSub": "Explore the collection",
"metaDesc": "Class A Wallcovering — Class A fire-rated wallcoverings. Free memo samples, expert trade service, and hand-holding on every order from Designer Wallcoverings.",
"nicheLabel": "designer wallcoverings",
"aboutCopy": "Class A Wallcovering curates designer wallcoverings for designers, architects, and discerning homeowners. Class A fire-rated wallcoverings. Every selection is backed by Designer Wallcoverings' decades of trade experience.",
"niche": {
"pos": [
"class a",
"fire rated",
"commercial",
"contract"
],
"neg": [],
"types": []
},
"theme": {
"accent": "#3a5f8a",
"bg": "#0c0e11",
"bgLight": "#eef0f2",
"ink": "#e8eaee",
"inkLight": "#161a1e",
"rule": "#c4cad0",
"serif": "'Cormorant Garamond','Playfair Display',Georgia,serif",
"sans": "-apple-system,'Inter',system-ui,sans-serif",
"palette": "slate",
"font": "cormorant"
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"monetize": true,
"heroImage": "https://cdn.shopify.com/s/files/1/0015/4117/7456/files/VV240_circles_SCARLET_1031x_2c1424d9-e2e8-456a-beb8-cd6ac0df55d9.webp?v=1781638431",
"content": {
"lede": "In a hotel corridor, a hospital lobby, or a school hallway, the wall covering is part of the fire-safety system. A Class A rating is the line between a finish that resists flame spread and one that fails inspection.",
"sections": [
{
"h": "What Class A means",
"body": "Class A (also written Class 1) is the top interior-finish rating under ASTM E84, the Steiner tunnel test, which measures how fire behaves across a mounted material. Two numbers matter: Flame Spread Index (FSI) and Smoke Developed Index (SDI). Class A requires an FSI of 0-25 and an SDI of 0-450.\n\nThose thresholds are why the rating exists. Flame spread describes how fast fire travels along the surface; smoke developed describes how much visibility-killing, toxic smoke the material produces. In an occupied commercial building, both determine how much time people have to get out, which is why codes reserve Class A for the most demanding locations."
},
{
"h": "Where code requires it",
"body": "The International Building Code ties finish class to occupancy and location, with the strictest requirement on exits. Enclosed vertical exits and exit passageways typically demand Class A; exit-access corridors often require Class A or B; individual rooms may allow Class C. Sprinklered buildings sometimes permit one class lower, but the exit path rarely relaxes.\n\nBecause the requirement follows the space rather than the product, a wallcovering that is fine in a private office may be prohibited in the corridor outside it. Always match the material's tested rating to the specific area on the plans, and confirm which code edition the jurisdiction has adopted."
},
{
"h": "Reading the test and the fine print",
"body": "A credible Class A claim comes with documentation: an ASTM E84 report naming the test lab, the reported FSI and SDI, and often the specific substrate the material was tested over. That last detail matters, because E84 results depend on the mounting assembly. A covering rated Class A over one wall type is not automatically Class A over another.\n\nWatch for the difference between the wallcovering alone and the wallcovering plus adhesive and wall assembly as installed. For code compliance, keep the manufacturer's test report and any required certificate on file for the inspector, and confirm the product still carries the rating in the color and construction you actually specified."
}
],
"guideTitle": "Quick checklist before you order",
"guide": [
{
"k": "Confirm FSI and SDI",
"v": "Class A is 0-25 flame spread and 0-450 smoke developed under ASTM E84."
},
{
"k": "Match rating to location",
"v": "Exits and corridors are strictest; check the plan area, not just the product."
},
{
"k": "Get the test report",
"v": "Ask for the ASTM E84 report and certificate for the inspector's file."
},
{
"k": "Check the substrate",
"v": "Verify the rating holds over your actual wall assembly and adhesive."
},
{
"k": "Note the code edition",
"v": "Confirm which IBC/NFPA edition your jurisdiction enforces before specifying."
}
],
"faqTitle": "Frequently asked",
"faq": [
{
"q": "What is the difference between Class A, B, and C?",
"a": "They rank flame spread under ASTM E84: Class A is 0-25, Class B is 26-75, and Class C is 76-200. Lower numbers resist fire better, and all three cap smoke developed at 450."
},
{
"q": "Is Class A the same as fireproof?",
"a": "No. Class A finishes resist flame spread and limit smoke, but they still burn under enough heat. The rating measures surface fire behavior, not immunity to fire."
},
{
"q": "Does a sprinklered building lower the wallcovering requirement?",
"a": "Sometimes the code allows a one-class reduction in certain spaces, but exit stairs and passageways usually still require Class A. Verify against the adopted code."
}
],
"about": "This is an independent reference on Class A fire-rated wallcoverings for architects, specifiers, and facility managers. We explain ASTM E84, code triggers, and the documentation an inspector expects, in plain language. We are not affiliated with any manufacturer and provide no legal or code-approval authority.",
"guidePage": {
"lede": "Specifying a Class A wallcovering correctly is as much about paperwork and location as it is about the material. Here is how to get it through inspection.",
"sections": [
{
"h": "Tracing the requirement from plan to product",
"body": "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.\n\nOnly 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."
},
{
"h": "The documents an inspector actually wants",
"body": "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.\n\nType 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."
},
{
"h": "Installation choices that can affect compliance",
"body": "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.\n\nBefore 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."
}
]
},
"articles": [
{
"title": "ASTM E84 and what a Class A rating actually certifies",
"dek": "The Steiner tunnel test, a Flame Spread Index at or below 25, and a Smoke Developed Index at or below 450 — the exact numbers behind the words 'Class A.'",
"body": "Class A is not a brand of material or a level of quality. It is a specific result from a specific test, and the test is ASTM E84, also published as UL 723 and NFPA 255. The core evidence a specifier uses to defend a wallcovering choice to a plan checker comes from that report, so it is worth knowing precisely what the rating means before it goes on a submittal.\n\nASTM E84 is run in a Steiner tunnel, a horizontal chamber about 25 feet long. A sample of the finish is mounted on the ceiling of the tunnel, a controlled gas flame is applied at one end, and instruments measure how far and how fast flame travels along the specimen and how much smoke is produced, all compared against calibrated baselines. From that run the lab derives two numbers: the Flame Spread Index (FSI) and the Smoke Developed Index (SDI).\n\nThe flame-spread number sets the class. An FSI of 0 to 25 is Class A, also written Class I in some codes. 26 to 75 is Class B (Class II), and 76 to 200 is Class C (Class III). Alongside that, the code caps smoke: for interior wall and ceiling finishes the Smoke Developed Index must not exceed 450 regardless of class. A material can have a low flame spread and still fail on smoke, so both figures have to be read, not just the headline class.\n\nTwo cautions keep a specifier out of trouble. First, ASTM E84 tests the finish more or less as a flat lining, and it is a comparative surface-burning test, not a real-room fire model, which is why heavier textile and expanded-vinyl products are routed to a full-scale room-corner test, NFPA 286, rather than judged on the tunnel result alone. Second, the rating belongs to a product on a stated substrate and installation, so 'Class A' is only true as tested; change the backing or the adhesive and the report may no longer apply. Class A is a number with conditions attached, and the conditions are the job.",
"slug": "astm-e84-what-class-a-certifies"
},
{
"title": "When the tunnel test is not enough: Class A wallcovering and NFPA 286",
"dek": "For textile, expanded-vinyl, and other heavy wall coverings, the code can require a full-scale room-corner burn on top of ASTM E84. Here is the trigger and the pass criteria.",
"body": "There is a category of wall covering that can pass ASTM E84 as Class A and still not be usable on that basis alone. The International Building Code (Section 803.1.2 in the 2021 edition) treats textile wall coverings and expanded-vinyl wall coverings, the thick, fabric-faced, and dimensional products common in hospitality and corporate lobbies, as a special case, and in many applications asks for more than the tunnel result before they can be used where a Class A finish is required. The exact scope, the provisions, and the exceptions are edition- and use-dependent, so the adopted code governs any specific project. The reason for the extra scrutiny is physical: those materials can behave very differently in a real corner than a thin lining does in a horizontal tunnel.\n\nThe alternate path is NFPA 286, the Standard Methods of Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish to Room Fire Growth. Instead of a small horizontal specimen, NFPA 286 lines the interior surfaces of a full-size room with the actual product and exposes it to a gas burner in the corner, ramped from 40 kW to 160 kW. It measures whether the finish flashes the room over, how far flame spreads to the ceiling and out the doorway, and how much heat and smoke it releases.\n\nThe acceptance criteria are set out in IBC Section 803.1.2.1 (2021 edition), and in summary they require that during the 40 kW exposure flame not spread to the ceiling, and during the 160 kW exposure that flame not spread to the outer extremity of the sample, that flashover not occur, that the peak heat release rate stay under 800 kW, and that the total smoke released stay within the code limit. The precise measurement windows are worth reading in the adopted edition rather than quoting from memory. Meet the criteria and the textile or expanded-vinyl covering is permitted where the code would otherwise call for a Class A finish, which is an alternate compliance path rather than a re-classification of the product as E84 Class A, and keeping those two ideas separate matters on a submittal.\n\nThe practical takeaway for a spec desk is to ask which test a given product's rating rests on. A thin commercial vinyl is usually defended by an ASTM E84 Class A report. A heavyweight textile or expanded-vinyl product should carry an NFPA 286 report showing it met 803.1.2.1, and a submittal that offers only an E84 number for that class of material is incomplete. Knowing which test the code demands for the material in hand is the difference between a clean plan review and a rejected finish.",
"slug": "class-a-nfpa-286-room-corner-test"
},
{
"title": "Reading a flame-spread report before you spec",
"dek": "A test report is only as good as the fine print. What to verify on an ASTM E84 or NFPA 286 report so the Class A claim survives a plan checker.",
"body": "A wallcovering line will happily hand over a one-line claim: 'Class A, ASTM E84.' That line is not a submittal. The document that satisfies an authority having jurisdiction is the actual test report from the fire lab, and a specifier who learns to read one can catch problems before they become change orders. A few fields on that report carry almost all the risk.\n\nStart with the product identity and the mounting. The report names a specific product, and often a specific substrate and adhesive, because ASTM E84 results are only valid for the assembly as tested. If the report shows the product tested over one board and the job installs it over another, the rating is arguably unsupported. Note also whether the specimen was tested unadhered or fully adhered, since the code and some manufacturers distinguish the two.\n\nNext read the two indices and the date. Confirm the Flame Spread Index is 25 or lower for Class A and that the Smoke Developed Index is 450 or lower; a report that omits smoke is a red flag. Check the report date and revision, because product formulations change and an old report may not describe what is being shipped today. Identify the testing laboratory as well: an accredited third-party lab report carries weight a manufacturer's internal claim does not.\n\nFinally, match the report to the code path the project is actually using. If the material is a textile or expanded-vinyl covering, the E84 report alone will not do and you should be looking for an NFPA 286 report showing the product met the room-corner acceptance criteria of IBC 803.1.2.1, not an E84 number. Assemble the report, the product data sheet, and the installation instructions into one submittal package, and the Class A claim stops being a marketing phrase and becomes a defensible, inspectable fact.",
"slug": "reading-flame-spread-report-before-you-spec"
},
{
"title": "Where code actually requires Class A: occupancy, egress, and the sprinkler tradeoff",
"dek": "The building code does not ask for Class A everywhere. It maps required flame-spread class to occupancy group and to where in the egress path a surface sits.",
"body": "One of the most common spec mistakes is treating Class A as a blanket requirement for every commercial wall. The International Building Code is more surgical than that. In Chapter 8, which governs interior finishes, Table 803.13 (2021 IBC) maps the minimum required flame-spread class to two things at once: the building's occupancy group and the location of the surface within the means of egress. Reading that table correctly can both prevent a code violation and avoid over-specifying a finish where the code allows less.\n\nThe governing idea is that the finish requirement gets stricter the closer a surface is to a life-safety path. The table generally distinguishes three zones: interior exit stairways and exit passageways (the most protected part of the escape route), exit access corridors, and rooms or enclosed spaces. A surface in an exit enclosure typically must meet a higher class than the same surface inside a private room, because occupants have to move through the egress path while the building is on fire.\n\nOccupancy raises or relaxes the bar. Higher-hazard and higher-density groups, institutional occupancies such as hospitals and nursing homes (Group I), assembly spaces (Group A), and educational spaces (Group E), carry stricter finish requirements than, say, a low-occupancy storage use, because the consequence of a fast-spreading finish is greater when the people present are numerous, unfamiliar with the exits, or unable to evacuate on their own.\n\nThe code then offers a documented tradeoff that a specifier should know: under IBC Section 803.13, in buildings equipped throughout with an automatic sprinkler system, the required finish class may be reduced by one step in many locations. That is a real allowance, not a shortcut, and it must be applied by reading the actual adopted code and confirming the sprinkler condition. The professional habit is to look up the specific cell in Table 803.13 for the project's occupancy and egress location, confirm whether the sprinkler reduction applies, and specify to that, rather than defaulting every wall to Class A out of caution. A worked example shows the method. Take an exit-access corridor in a Group I-2 hospital, an occupancy the code treats as high-hazard because patients cannot evacuate on their own. A specifier opens Table 803.13, reads the class required at the intersection of that occupancy and the corridor location, then checks whether the building is fully sprinklered to see if the one-step reduction applies, and specifies the wallcovering to the class that lookup returns, with its ASTM E84 or NFPA 286 report attached. The value is in the method rather than any memorized number: the requirement is whatever that specific cell in the adopted edition states, read for the project's own occupancy and egress location.",
"slug": "where-code-requires-class-a-occupancy-egress"
},
{
"slug": "beyond-aesthetics-understanding-the-performance-benefits-of--5",
"title": "Beyond Aesthetics: Understanding the Performance Benefits of Class A Wallcoverings",
"date": "2026-09-14",
"excerpt": "Class A fire-rated wallcoverings offer critical performance advantages beyond visual appeal, contributing to building safety and potentially influencing code compliance.",
"body": "Specifying wallcovering isn't solely about aesthetics; it’s increasingly about performance. While beautiful designs are essential, the reality is that fire safety regulations significantly impact material choices, especially in commercial settings. Class A fire ratings represent a crucial layer of protection, signifying a level of resistance to flame spread and smoke development. Understanding what this rating *truly* means—and its implications for your project—is vital.\n\nThe 'Class A' designation isn’t simply a marketing term. It’s assigned based on rigorous testing according to standards like ASTM E84, indicating that the wallcovering has demonstrated limited flame spread and minimal smoke generation when exposed to fire conditions. This doesn't mean it's completely non-combustible; rather, its behavior is demonstrably less hazardous than materials with lower ratings (B or C). The reduced rate of flame propagation buys valuable time for occupants to evacuate safely and allows emergency responders critical moments to address the situation.\n\nThe benefits extend beyond immediate fire safety. Class A wallcoverings can contribute towards meeting building code requirements, potentially reducing the need for more complex and costly fire suppression systems like sprinklers in certain situations. While a sprinkler system is always preferable where possible, achieving a Class A rating on walls might allow for design flexibility and cost savings by lessening reliance solely on active fire protection.\n\nConsider how these performance attributes blend with design versatility. Achieving that balance means not sacrificing aesthetics for safety. Textural patterns like *Alexion Pebble* offer depth and visual interest without compromising the essential fire-rated qualities. Similarly, the subtle sophistication of *Alexion Powder* presents a refined look while adhering to stringent safety standards. The elegant simplicity of *Alexion Porcelain*, with its nuanced surface, exemplifies how performance and design can coexist harmoniously.\n\nThe selection of suitable wallcoverings becomes even more compelling when considering spaces demanding heightened protection – areas like public lobbies, corridors, stairwells, or assembly rooms where large numbers of people are present. Design choices that incorporate both beauty and inherent safety characteristics contribute to a well-considered and responsible design approach. The tactile richness of *Alexion Praline*, for example, adds warmth while delivering the critical fire performance required in many applications.\n\nThe decision to specify Class A wallcoverings should be part of a holistic fire safety strategy, always informed by local building codes and professional consultation. While their visual qualities are important, prioritizing inherent fire resistance is paramount for occupant wellbeing and overall building protection. These thoughtfully designed options can be viewed at designerwallcoverings.com."
}
],
"articlesLede": "In-depth guides and practical articles on designer wallcoverings."
},
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}