Decorative Ceiling Tiles: What Separates Them From the Ones in an Office

There is usually a four-inch strip of countertop stone sitting loose in the box it shipped in, or a faint gray bloom on the paint behind the faucet. Both are the same question arriving from different directions, and a bathroom backsplash answers to a different water pattern than a kitchen one. Knowing how to install a vanity backsplash starts well before any adhesive comes out, with two things you can check in a minute: what the wall behind the vanity is made of, and how far off it the vanity sits. Does a bathroom vanity need a backsplash? Only when the wall behind it is unprotected. You need a backsplash for a bathroom vanity when that wall is painted drywall, wallpaper or bare board. If it is already tiled, stone, or a sealed panel running to the countertop, anything you add is a design decision rather than a defensive one. Many prefabricated vanity tops now ship with no splash at all, or with a loose strip rather than a molded one, on the assumption that the wall gets treated separately. Skipping it does nothing dramatic at first, which is why it gets ignored. Handwashing and toothbrushing throw a fine spray that lands, dries and lands again in the same band of wall. Over months it streaks the paint and then softens it, starting at the bottom edge. How high should a vanity backsplash be? Four inches is the standard, measured up from the countertop, with six inches and full height as the usual steps beyond it. The number is a fabrication convention: the strip is cut from the offcut of your own slab, so the height is partly whatever the fabricator had left. The measurement that actually matters is taken from the sink rim. Backsplash height by sink type: undermount, drop-in, vessel Undermount. The shortest fall distance and water drains inward. Four to six inches covers it. Drop-in. Water pools on the deck at the rim, so the horizontal seal at the counter matters as much as the height above it. Vessel. The demanding case. The spout arcs up and over a bowl five or six inches tall, so water falls further and bounces outward. A four-inch splash behind a vessel sink stops at about the rim of the bowl and does very little. If your spout sits higher than four inches, raise the splash to match. Beyond that, stop the field on a line the room already has: the underside of the mirror, a window sill, the switch plate, or the ceiling. An arbitrary stopping height is the choice that reads as a mistake from the doorway, even to someone who could not say why. In eight-inch tile the landings are 8, 16, 24 and 32 inches above the counter. How to attach a vanity backsplash: bond it to the wall, not the counter The wall and the vanity are separate structures that move independently, and the backsplash sits across the join. So it bonds to the wall, while the joint where it meets the countertop gets a flexible seal rather than a rigid one. Bond both planes rigidly and the seam cracks, because the two structures keep moving after the adhesive has stopped. This is the industry standard, not an opinion. The TCNA Handbook treats a change of plane as a movement joint and calls for an elastomeric sealant over backer rod, not cementitious grout. In a wet zone that means 100 percent silicone, and on natural stone a neutral-cure silicone labeled stone-safe, since standard acetoxy silicone can stain porous stone permanently. Acrylic and latex caulks go in more easily, and they are the usual reason a splash seam ends up gray and split. Peel and stick metal tile simplifies the wall side of the job, since there is no mortar bed to float and no grout to fill. The counter joint rule is unchanged: one continuous flexible bead where tile meets stone, nothing rigid. How to fill the gap between the vanity and the wall Hold a straightedge flat against the wall behind the vanity and look for daylight. Walls bulge near corners and around plumbing, and framing goes out of plumb. Some gap is normal. What you find determines the fix: Hairline to 1/4 inch. A color-matched silicone bead closes it. 1/4 to 1/2 inch. Foam backer rod sized about 25 percent wider than the gap, pressed in first, then caulked over. Caulk alone sags and splits. Over 1/2 inch. A trim piece or a scribed filler strip. Past an inch, have the vanity's fit looked at before you treat the gap. Surface-applied tile adds one more consequence. When the vanity stands off the wall, the tile plane and the back edge of the countertop sit on different planes with a void between them, and a surface-applied tile is not what spans that gap. That decides whether you run the field down to the counter, or stop above the lip and seal the shelf below. Should you remove the old 4-inch backsplash first? Often you should not. A full-height field of tile above a retained stone lip is the combination that tends to look unresolved: two materials, two termination lines and a ledge collecting dust between them. Either commit to the stone and stop above it cleanly, or take it off. If it stays and you tile over it, our notes on prepping an existing tiled surface apply. Before you touch it, confirm the splash is a separate piece. Cultured-marble and one-piece integral tops often have the splash molded in rather than glued on, with no seam and no caulk line where it meets the deck. Those cannot be removed at all, and prying or heating one destroys the top. If you cannot find a caulk line at the deck, stop. If it goes, a factory splash is held by three bonds rather than one: adhesive behind it, caulk along the top, caulk along the bottom. Score both caulk lines, then soften the adhesive with a hair dryer or a heat gun on its lowest setting, kept moving and held a few inches off the surface. Keep heat away from wallpaper, laminate and solid-surface countertops, and away from the faucet and its supply lines. A long stone strip is heavier and more fragile than it looks and often breaks coming off, so wear eye protection and gloves, cover the countertop and sink with cardboard, and lift the stone up and away rather than dragging it across the top. Drywall paper tears when that adhesive comes off. Seal exposed paper first with a water-free primer-sealer such as shellac or an oil-based primer, then fill, sand and prime, since water-based compound applied straight onto torn paper bubbles. Widespread tearing means skim-coating the zone. Wear a dust mask while sanding, and in a house built before 1978, check the EPA's lead-safe guidance first. How to install a vanity backsplash in metal tile The surface has to be clean, smooth, dry, sound and fully cured. Glossy, chalky, flaking, heavily textured or freshly painted walls need work first, and a bathroom wall is usually at least two of those. If it shows gray or black spotting, clean it off and let the wall dry before covering anything, and trace the source if it returns: metal tile is not permeable, so anything wet behind it stays wet and out of sight. Our step-by-step guide to installing peel and stick metal tile covers prep and the peel-press rhythm in full. What follows is only what changes behind a vanity. Set your layout line off the mirror, not the counter. Countertops are rarely level, and the mirror is what the eye reads. Work outward from its centerline so cut tiles land symmetrically at both ends. Dry-lay the run before peeling anything. Ten minutes of dry-laying shows you where the cuts land. Press the strip behind the faucet first. The inch or two directly behind a deck-mount faucet base is the hardest place to get firm hand pressure, and where water arrives most often. Trim to fit with a box cutter or scissors. Wear gloves, since cut aluminum edges are sharp. No grout, no saw, no contractor. For outlets and corners, see how to cut metal tile around outlets and corners. Each 10-pack covers approximately 4.44 square feet in 8 by 8 inch tiles. For a field running 24 inches up from the countertop: Vanity width Field area 10-packs (estimate, incl. 10% waste) 24 in 576 sq in 1 30 in 720 sq in 2 36 in 864 sq in 2 48 in 1,152 sq in 2 60 in double 1,440 sq in 3 Measure your own wall before ordering. Cuts around a faucet, an outlet or an out-of-square corner use more than a clean rectangle does, and a spare pack costs less than a second shipment. Working around the faucet, mirror and outlet Single-lever faucet handles travel backwards through their arc, so the clearance that fails is behind the handle, not under the spout. Two inches behind the handle is the working minimum; the spec drawing gives the exact figure. With a wall-mount faucet, adding wall thickness shortens the exposed valve shank, and past a point the spout and handles no longer have enough to engage. Check the valve's rated finished-wall thickness before you tile, and treat a shortfall as a plumbing job. In the US, electrical codes generally put a GFCI-protected receptacle within about three feet of the sink, so there is usually an outlet inside the field you are tiling. Metal tile conducts, so switch off the circuit at the breaker and confirm the outlet is dead with a non-contact tester before you fit anything near it. Adding a finished surface also changes how far the box sits back, and code caps that setback at a quarter inch in noncombustible material. Use a listed box extender; longer screws leave the device short of the finished surface. Have an electrician confirm before you close anything up. Run the field behind the mirror where you can, so the plane stays uninterrupted and a future mirror swap does not expose a bare patch. That means taking the mirror down, so check how it is hung: a clipped or bracketed mirror comes off with two people and gloves, while one glued straight to the wall will usually break, and stopping the tile cleanly at its edge is the better call. A busy pattern does real work opposite a mirror, breaking up reflected light instead of throwing it back as one flat sheet of glare, which is why Silver Fleur reads as light rather than as a second mirror. Where the hardware is warm, Patina Copper and the gold-accented Rustic Farmhouse pick up brass fixtures without matching them exactly. Frequently Asked Questions Do you caulk a vanity backsplash at the top and the bottom? Both, but with different products and for different reasons. Seal the bottom joint, where the backsplash meets the countertop, with a continuous bead of 100 percent silicone. That is where water collects and the two structures move. The top edge into painted drywall is a finish decision: a color-matched flexible bead is the usual treatment where there is no trim. What is the standard vanity backsplash height? Four inches above the countertop is the standard, with six inches and full height as the common alternatives. It is a fabrication convention rather than a performance figure, since the strip is usually cut from your countertop's offcut. Measure from your sink rim instead, and raise the height if your faucet spout sits above four inches. Can you use peel and stick tile instead of a stone vanity backsplash? Yes, on a wall that is sound and smooth. WallWear's aluminum tiles list bathroom vanity walls and powder rooms among their uses, install with no grout and trim with a box cutter or scissors. You lose the monolithic stone look and gain a surface you can install yourself, without a slab, a template or a fabricator's lead time. How close to the shower or tub can a vanity backsplash go? Metal tile is water-resistant, which suits a vanity splash zone but not a wet zone. Keep the field on the vanity wall and stop it before any surface that gets direct spray or standing water, such as a shower interior or tub surround. We set out the boundary in which bathroom zones metal tile is and isn't made for.

Decorative ceiling tiles reach the market from two industries that have almost nothing to do with each other. One sends a mineral fiber panel sized to drop into a metal grid and rest on its flanges. The other sends an embossed tile meant to be fixed to the ceiling you already have. What separates them is not the pattern on the face. "Ceiling tile" names two products with almost nothing in common One is a component. A lay-in panel is part of a suspension system: it exists to sit in a grid, be lifted out, and be put back. Its job description is written in performance numbers, and its face is the least considered thing about it. The other is a finish. A surface tile is bonded to the ceiling plane you already have, joists or drywall or plaster, and it is chosen the way you would choose a wallpaper: for how it looks from directly underneath. The clearest proof that the face is not the dividing line comes from the manufacturers. One pattern, pressed from the same die, gets sold in three separate fixings: a nail-up version edged to lap its neighbor and fastened through the lap, a version formed to screw down over drywall, and a drop-in version sized to sit in a grid. Same picture, three different panels: the face is shared, the dimensions and edges are not. What changes is what holds the tile up, and that is the question that reliably tells the two categories apart. The tell: grid tiles are made too small on purpose, surface tiles too big The detail that settles it sits in the specification table rather than the product copy. A "2x2" ceiling tile means two feet by two feet, so 24 inches square. Except that it is not 24 inches. Pull up the specification on almost any lay-in panel and you will find a listing reading something like Common: 24 in x 24 in; Actual: 23.75 in x 23.75 in. Published actual sizes run from roughly 23.65 to about 23.88 inches, varying by manufacturer and edge profile, so there is no single figure to memorize. The undersizing is deliberate, because the 24 inches is the grid module, the spacing of the metal bars measured center to center. The panel has to be small enough to tilt up diagonally through that opening and then drop back down onto the flanges of the bars, which is what actually carries its weight. Now look at a nail-up tile from the same catalog. It runs over 24 inches, in the region of 24 and three-eighths, with edges designed to lap the tile next to it. It is oversized for exactly the opposite reason: nothing is going to hold it at the perimeter, so it overlaps its neighbor and is fastened through the lap. Undersized means the grid carries it; oversized means the surface does. That one distinction resolves most ambiguous product listings. A footnote worth having: historic pressed metal plates, the material the trade still calls tin although it was tin-plated steel, were 24 inches square long before suspended ceilings existed. Both traditions reached the same module by different routes. What a drop ceiling is actually for A suspended ceiling is an access strategy before it is a look. The space above it, the plenum, carries ductwork, wiring and plumbing, and the grid turns every square foot of ceiling into a removable hatch. Damage one panel and you replace one panel. That access costs something. The system is engineered rather than decorative: suspension components are manufactured to ASTM C635 and installed to ASTM C636, and they are load-rated. It also takes headroom: because a panel must tilt up through its own opening, the grid hangs a few inches below the structure, commonly three to four, depending on the hardware. The grid has its own variables. Exposed bar faces come in more than one width, and lay-in panel edges are cut either square, to sit flat on the flange, or stepped, a tegular edge, to drop below it. Those belong to the grid system rather than to the pattern, so they sit outside this article. If your question is which fixing route a metal ceiling should take, our comparison of tin drop ceiling tiles, nail-up and peel-and-stick is the one to read. NRC, CAC and Class A: whose vocabulary this is Shop the functional category for five minutes and you meet a wall of acronyms. They are worth knowing, because they are the reason those panels exist and because they get assumed onto products that never claimed them. NRC, Noise Reduction Coefficient, is an average of how much sound a material absorbs at four frequencies, tested to ASTM C423 and rounded to the nearest 0.05. It describes absorption inside a room: how much a space stops sounding like a swimming pool. CAC, Ceiling Attenuation Class, is a different measurement entirely, tested to ASTM E1414. It rates how well a ceiling system blocks sound traveling from one closed room to the next, over the wall and through the shared plenum. A panel can score well on one and poorly on the other. Class A comes from the ASTM E84 surface burning test and covers two numbers: flame spread across a material's face, 0 to 25, and smoke developed, 0 to 450. It is not an hourly fire-resistance rating for a floor or ceiling assembly, and the two are often confused. Light reflectance is measured on any face, but the high figures quoted in ceiling marketing come from white or near-white panels. A colored or patterned face reads lower, so never carry a white panel's number across to a decorative one. The decorative side is less tidy than either camp's marketing suggests. Some decorative panels do publish a fire rating; acoustic data is commonly absent altogether. Sag resistance, the failure that decides whether a ceiling still looks flat in five years, has no single industry number behind it, and is usually communicated through a maker's own performance tiers or warranty conditions rather than a rating you can compare across brands. Read the specification sheet, and never infer a rating from the material. Why decorative ceiling tiles are so easy to get wrong The confusion is not the shopper's fault; it is built into how the category is sold. Product names routinely carry both fixings at once, so one listing can call itself a drop ceiling tile and a glue-up panel in the same breath. Decorative lay-in panels are also completely real, including molded coffer and pressed-look panels made by mainstream ceiling brands for their own grids, so the rule can never be "decorative tiles don't go in grids." Only one question survives contact with a real product listing. Not what it is made of, and not what it looks like, but what holds it up. Where a peel-and-stick 8x8 metal tile sits Our own tiles sit firmly on the finish side of that line. A WallWear tile is real water-resistant aluminum, 8 inches square, ten to a pack covering approximately 4.44 square feet. It is carried by the surface it is stuck to, which is why the condition of that surface decides the result. Installation is peel, stick, and trim to fit with a box cutter or scissors: no grout, no special tools, no professional help. The method itself is set out in our guide to installing peel-and-stick metal tile. It is not a grid product, and the arithmetic shows why. Three 8-inch tiles laid edge to edge measure exactly 24 inches, the nominal module, but not the actual opening, which is smaller. A lay-in panel is held at its perimeter by the bar flanges, so a tile sitting partway across an opening would have nothing under it. Ceilings are a use we list for these tiles, but as a surface they are bonded to, never as a drop-in. Worth stating directly: we publish no ceiling-specific weight limit, maximum tile weight or adhesive shear figure for these tiles, and adhesive-backed tile listings rarely carry those numbers at all. If your ceiling is anything other than sound and smooth, ask before committing a whole plane to it. On material, our notes on what "faux tin" is actually made of carry the rest. On whether a large pressed sheet or an 8-inch module suits your room, see how panels compare with 8-inch tiles. Whether you land on the warm weathered copper of Patina Copper, the pale relief of Pastel Painted Gold or the polished silver of Silver Fleur, you are choosing a face. That is the whole point of the decorative category. Choose it knowing which of the two products you are holding. Frequently Asked Questions Does a 2x2 ceiling tile mean feet or inches? Feet. A 2x2 ceiling tile is nominally two feet by two feet, so 24 inches square, and 2x4 means 24 by 48 inches. Those are the two standard grid modules used in the United States. The number describes the spacing of the suspension grid rather than the physical panel, which is manufactured slightly smaller. Why is a 24-inch ceiling tile actually smaller than 24 inches? Because it has to clear the grid on the way in. The panel is tilted up through its own opening and then set down on the flanges of the bars, so a true 24 inches would jam. Each manufacturer chooses its own undercut, which is why published actual sizes range from about 23.65 to 23.88 inches. The undersizing itself is the signal that a tile belongs to a grid. What is the difference between a drop ceiling and a surface-mount ceiling? A drop ceiling carries its panels on a suspended metal grid; a surface-mount ceiling carries them on the plane you already have. The reliable test is the tile itself. A lay-in panel is made under its nominal size so it can pass through the opening and rest on the flanges, while a surface tile is oversized to lap its neighbor. Measure the tile, not the pattern. Can you put decorative tiles into an existing drop ceiling grid? Only if they are made as lay-in panels. Several mainstream ceiling manufacturers sell genuinely decorative panels cut for their own grids, so the answer is not automatically no. Surface tiles, including glue-up, nail-up and peel-and-stick products, are not made to that dimension and are not carried at the perimeter, so they cannot simply be dropped in. Do decorative ceiling tiles have acoustic ratings? Usually they are not published, because decorative tiles are sold on their face rather than on performance. Some do carry a Class A surface burning rating, and a few publish NRC figures. Never assume a rating from the material a tile is made from: read the specification sheet for that individual product, or ask the manufacturer directly.

A corrugated metal ceiling is an older idea than the farmhouse reference photo suggests. Corrugated iron went up over rooms in houses, churches and railway stations before pressed-metal panels arrived, and it is the documented predecessor of the pressed tin ceiling rather than a modern borrowing from the barn. What the photo leaves out is what happens after the panels are fixed, in a room you sit under, clean and light every day. What "corrugated metal ceiling" actually covers Corrugated is a category, not a single profile. Panel makers sell box-rib and other angular shapes under the same corrugated heading as the classic rounded wave, and rib depth and pitch vary widely across a line, fine pitches included, some marketed for interior ceilings. Two panels described in identical words can read very differently overhead. Thickness is where the shopping gets slippery. A number like 29 gauge is not a guaranteed measurement: gauge is a legacy scale derived from weight, and the same number covers a tolerance band that shifts with whoever rolled the steel. ASTM calls gauge numbers an archaic term of limited usefulness, and the Metal Construction Association advises specifying thickness in decimal inches, which is why spec sheets now print a decimal minimum beside the gauge number. Compare the decimals. That is a steel convention; aluminum is specified in decimals from the start. The ceiling behind the ceiling does most of the work Manufacturers who publish corrugated installation guidance converge on one point: the substructure shows. One warns that framing and decking abnormalities will be transferred to the new metal if not corrected before sheeting begins, and overdriven fasteners get named separately as a cause of oil canning across the face. That language is written for roofs, and the same guides are careful to say that other contributors sit outside anyone's control, stress in the coil, gauge and thermal movement among them, and that mild waviness is inherent to light gauge metal rather than a defect. The prep lesson still carries indoors: get the plane sound, smooth and flat, with existing fastener heads flush, which usually means shimming furring until it reads level before the first panel goes up. Fastening is less settled than the forums suggest. There is no general answer to whether screws go through the raised corrugation or the flat beside it, and manufacturers publish different patterns for the same panel used as roofing and as siding. One US maker's details for a 7/8 inch corrugated profile call for a 2 inch fastener through the crown on a roof but a 1-1/4 inch one on a wall, since a crown-driven screw spans the void under the corrugation before it reaches framing. Trade guidance generally favors the flat beside the rib on ribbed profiles, where the screw bites sooner. Your own panel maker's diagram governs, and it repays reading before you buy screws. Turn a rib horizontal and it becomes a trough Nobody publishes a dust figure for a corrugated ceiling, so take what follows as geometry rather than data. On a wall or a roof, the channels run downhill and shed. Flat overhead, every channel becomes an upward-facing trough the full length of the sheet. Where panels are direct-fastened, as many exposed-fastener profiles are, rows of screw heads and washers sit in that plane too; a concealed-clip or adhesive install skips that. The useful comparison is commercial. The FDA Food Code asks that ceiling materials in a food establishment be smooth, durable and easily cleanable, and nonabsorbent where moisture is involved. None of that governs a home kitchen. It describes what a surface meant to be wiped down should look like, and smooth is the operative word. Above a stove, those troughs sit where cooking aerosol lands first. The kitchen-film side belongs to the wall, and we covered it in the piece on the corrugated metal backsplash. What a metal plane does to light and sound Bare metallic sheet is close to a mirror, and the trade actually measures it. A New Zealand metal roofing industry technical page publishes 60 degree sheen readings of 20 to 25 percent for new unpainted Zincalume, the zinc-aluminum coating sold elsewhere as Galvalume, against 10 to 15 percent for low-gloss coil-coated paint and effectively zero for textured finishes. Two caveats before you lean on that. The same table puts standard coil-coated paint at 25 to 30 percent, glossier than bare sheet, so gloss alone is not the story: unpainted sheet owes much of its glare to how light its color is, and it weathers down. Those readings describe sunlit roofs at a distance, not ceilings, and plain galvanized is a different coating suppliers generally call the shinier of the two. Indoors, geometry takes over. Each rounded rib behaves like a small cylindrical mirror, so one downlight can smear into a bright streak along the rib instead of a soft pool. Low-gloss and textured finishes measurably cut the sheen, though they are sold mainly to hide oil-canning waviness, reduced glare falling out of the same diffusing effect. Sound gets overstated in both directions. Painted drywall absorbs almost nothing already, published tables putting it near NRC 0.05, and solid unperforated metal panel sits in much the same range, roughly 0.05 to 0.10, so metal over drywall is close to acoustically neutral. The genuine downgrade is covering mineral fiber acoustic tile, common in finished basements and usually rated somewhere around NRC 0.50 to 0.70, because anything hard gives that absorption up. Perforated metal backed with an acoustic pad is a different product again, rating 0.70 and above, so "metal ceiling" alone tells you little. On expansion noise, a metal roofing manufacturer says plainly that no installation practice completely eliminates the popping, but those movement figures come from long roof panels in full sun; a conditioned room sees a fraction of that swing over far shorter runs. Where the last panel lands Layout logic is the real difference between corrugated and the pressed-metal ceilings that followed. The National Park Service's preservation brief on historic metal ceilings describes a deliberate anatomy: a patterned field, then a molding, a filler and a cornice around the perimeter. The border pieces were the clever part, made in a variety of widths precisely so they could compensate for irregular rooms, which avoided cutting the field tiles and compromising the pattern. The out-of-square lives in the border rather than in a half-motif in plain view. It was never absolute. The same brief notes rooms the filler alone could not absorb, says historic crews usually started at one corner rather than dead center, and points out that some field cutting is still needed at light and fan hookups. Modern nail-up instructions are the ones telling you to snap centerlines and work outward. Format decides how much of this you inherit, the argument in panels versus 8x8 tiles. Corrugated is usually run the other way, having inherited its habits from roofing: start at one wall, lay strips across, and rip the leftover fraction into a sliver at the far side. That is convention rather than necessity. You can center the run and split the remainder between both walls, absorb some of it in the side laps, or close the edges with trim. The edge-to-edge default was set on roofs, where an off-balance last strip lands somewhere nobody looks. On a ceiling you sit under, decide where that partial panel goes before anyone drives a screw. Corrugated metal ceiling ideas that survive contact with a room Corrugated earns its place where everything above reads as an asset rather than a problem. A porch ceiling wants weather tolerance more than wiping down. A tall volume lets rib pitch read at the distance it was drawn for. In a barn conversion, corrugated steel ceiling panels finish a sentence the building began. When you want the metal itself in a lived-in room, a flat embossed face gives you the material without the trough, the streak or the sliver at the wall. WallWear's Rustic Farmhouse metal tile is real water-resistant aluminum, 8 inches square, ten to a pack covering approximately 4.44 square feet, with the pattern pressed into the face rather than rolled into a rib. Ceilings sit on the brand's own list of intended uses, and installation is peel, stick and trim to fit with a box cutter or scissors: no grout, no special tools, no professional help. Patina Copper reads warmer and aged; Teal and Silver Leaves takes the same relief cooler. Setting out is covered in the metal tile install guide. Frequently Asked Questions Can you use corrugated metal on a ceiling? Yes, and it has a long history indoors: corrugated iron ceilings predate pressed-metal ones. The practical questions are about the room rather than the material. Fix it to a plane that is sound and level, since the substructure telegraphs through, and decide in advance where the partial panel at the far wall lands. How do you attach corrugated metal panels to a ceiling? Through the panel into solid framing or furring, following the profile maker's own fastening diagram. There is no universal rule about screwing through the crown or the flat beside the rib, and manufacturers publish different patterns for the same panel on a roof and a wall. Read the diagram before buying fasteners. Is a corrugated metal ceiling noisy? Over painted drywall the change is small. Drywall absorbs almost nothing already, near NRC 0.05, and solid metal panel sits around 0.05 to 0.10. The real loss comes from covering mineral fiber acoustic tile, usually rated around NRC 0.50 to 0.70, since anything hard gives that absorption up. What is the difference between a corrugated tin ceiling and a pressed tin ceiling? Profile and layout. Corrugated is rolled into repeating ribs and traditionally run wall to wall like roofing. Pressed metal is stamped with a pattern and laid as a field inside a border of moldings and fillers, which absorbs a room's out-of-square so the pattern is not cut. What each is made of varies, as we set out in what "tin" actually means.