Bathroom Tile Guide | How to Choose Floor & Wall Tile

Bathroom Tile: A Guide to Choosing Floor and Wall Tiles

A bathroom can contain several very different tile environments within only a few feet of one another.

A tile installed on a dry vanity wall does not face the same conditions as a shower floor. A bathroom floor outside the shower needs different performance from a decorative wall tile. A polished natural stone may be practical on one surface and unnecessarily demanding on another.

That is why choosing “bathroom tile” as one category is not enough.

A better sequence is:

Choose by location → confirm the tile is intended for that use → evaluate wet-floor performance where relevant → consider cleaning and maintenance → then choose size, finish, color, and layout.

This guide explains how to choose tile for bathroom floors, shower walls, shower floors, tub surrounds, and other bathroom surfaces without treating appearance as the only decision.

Bathroom Tile Selection at a Glance

The best bathroom tile is not one material or one finish.

It is the tile whose intended use and performance match the actual surface.

Start With Location, Not Color

Divide the bathroom into functional surfaces before choosing tile.

At minimum, distinguish between:

dry or occasionally damp walls;

the main bathroom floor;

shower walls;

shower floors;

tub surrounds;

vanity backsplashes and decorative walls.

A tile can be suitable in one location and unsuitable in another.

The manufacturer's technical information should establish the intended area of use.

Marketing descriptions such as:

bathroom tile;

spa tile;

shower tile;

stone-look tile;

are not substitutes for product-specific technical information.

Floor Tile and Wall Tile Are Not Interchangeable by Default

One of the first checks is whether the product is intended for floors, walls, or both.

Wall-Only Tile

Some ceramic, glass, decorative, and specialty tiles are intended only for vertical applications.

They may not have the surface characteristics, mechanical properties, or product-use classification required for flooring.

Do not put a wall-only product on a bathroom floor simply because it looks similar to floor tile.

Floor Tile on Walls

Many floor-rated tiles can also be installed on walls when the manufacturer permits it and the wall assembly is suitable.

However, heavier or larger products can introduce additional requirements for:

substrate preparation;

mortar selection;

handling;

temporary support;

installation technique.

A floor rating does not mean every wall installation is automatically appropriate.

Porcelain Tile in Bathrooms

Porcelain is one of the most common bathroom tile materials.

Under recognized ceramic-tile definitions, porcelain tile has water absorption of 0.5% or less.

That low absorption can be useful in moisture-exposed applications.

But it does not answer every bathroom-selection question.

A porcelain tile can still be unsuitable for a particular floor because of:

surface characteristics;

product-use classification;

finish;

size;

drainage conditions;

maintenance requirements.

Low Water Absorption Does Not Equal Wet-Floor Suitability

Porcelain classification describes water absorption of the ceramic body.

It does not establish how the finished surface will perform underfoot when wet.

A polished porcelain and a structured porcelain can both meet the porcelain absorption definition while having very different surface characteristics.

Check the exact product rather than approving a bathroom floor simply because the box says “porcelain.”

Ceramic Tile in Bathrooms

Non-porcelain ceramic tile includes a wide range of products.

Many glazed ceramic tiles work well on bathroom walls.

Some are also intended for residential flooring.

Potential advantages include:

broad design options;

easy-to-clean glazed surfaces;

many wall-focused formats;

relatively straightforward cutting for some products.

The useful question is not whether ceramic tile is generally suitable for bathrooms.

It is whether the specific ceramic product is approved for the intended location.

Natural Stone in Bathrooms

Natural stone can provide a distinctive bathroom surface, but it requires more material-specific evaluation.

Common bathroom stones include:

marble;

limestone;

travertine;

granite;

slate;

quartzite.

These materials do not have identical:

porosity;

mineral composition;

surface durability;

stain sensitivity;

cleaner compatibility.

Evaluate the Specific Stone

Before choosing natural stone for a bathroom, consider:

stone type;

finish;

intended location;

wet-area suitability;

porosity;

staining potential;

sensitivity to cleaners;

sealing recommendations.

Sealing Does Not Make Stone Waterproof

Some natural stones benefit from an impregnating sealer.

Others may not require sealing.

An impregnating sealer is generally used to improve stain resistance. It does not make the stone stain-proof and does not turn the stone surface into the bathroom's waterproofing system.

Follow recommendations for the specific stone and sealer.

Cleaning Chemistry Matters

Calcareous stones such as marble, limestone, and travertine can be damaged or etched by acidic cleaners.

Vinegar, lemon-based cleaners, and other acidic products that may be acceptable on other surfaces can damage these stones.

If easy routine cleaning is a high priority, cleaner compatibility should influence the material choice before installation.

Glass Tile in Bathrooms

Glass tile is commonly used for:

shower walls;

niches;

accent areas;

backsplashes;

decorative bands.

Some glass products are approved for floor use, while many are not.

Do not assume that small glass mosaics are suitable for a shower floor simply because of their size.

Verify:

intended use;

wet-area suitability;

floor approval where applicable;

manufacturer installation requirements.

Cement, Terrazzo, and Specialty Tiles

Bathrooms can also use materials such as:

cement tile;

terrazzo tile;

handmade tile;

metal-accent tile;

resin-based decorative products.

These products can differ substantially in:

porosity;

sealing requirements;

stain resistance;

cleaner compatibility;

floor-use approval.

Evaluate them from their actual technical documentation rather than grouping them automatically with conventional ceramic tile.

Choosing a Bathroom Floor Tile

The main bathroom floor commonly experiences:

barefoot traffic;

occasional water;

cosmetics;

cleaning products;

frequent cleaning;

transitions to other flooring.

The tile should therefore be selected as a walking surface first and a decorative finish second.

Confirm Floor Use

Verify that the manufacturer intends the tile for the expected floor application.

Do not rely only on:

a showroom display;

appearance;

material name;

photos of similar installations.

Use Current Hard-Surface Flooring Classifications

ANSI A326.3 provides five product-use classifications for hard-surface flooring:

Interior, Dry;

Interior, Wet;

Interior, Wet Plus;

Exterior, Wet;

Oils/Greases.

For bathroom flooring, the appropriate classification depends on the actual location and conditions.

The manufacturer can classify certain products using the standard's DCOF criteria or, where permitted by the standard, through a manufacturer-declared classification.

That distinction is important for mosaics and some highly structured surfaces where conventional DCOF measurements can be misleading.

DCOF Is Useful, but It Is Not a Safety Guarantee

Dynamic Coefficient of Friction is a measured surface property.

It is not the same thing as overall slip resistance and does not predict with certainty whether a person will slip.

Actual risk can also be affected by:

water;

soap;

cleaners and other contaminants;

footwear or bare feet;

slope;

drainage;

surface structure;

maintenance;

wear;

user behavior.

Do not select bathroom flooring by one DCOF number alone.

Do Not Treat 0.42 as a Universal Bathroom Rule

The current ANSI A326.3 classification system still includes a wet DCOF criterion of 0.42 for one pathway to the Interior, Wet classification.

However:

Interior, Wet can also be manufacturer-declared under the standard;

Interior, Wet Plus is manufacturer-declared;

mosaic and certain structured surfaces may use manufacturer-declared classifications;

the specifier still needs to consider actual project conditions.

The older shortcut “0.42 means safe when wet” is therefore not an adequate bathroom-selection rule.

Accessibility Does Not Create a Universal DCOF Number

Accessible floor surfaces are required to be slip resistant.

However, U.S. accessibility standards do not establish one universal minimum coefficient-of-friction value for compliance.

Do not treat a particular DCOF number as proof that a bathroom floor is ADA compliant.

Accessibility also involves other conditions such as:

stable and firm surfaces;

transitions;

slopes;

clearances;

overall bathroom design.

Shower Floors Need a Separate Tile Decision

A shower floor experiences more frequent and direct water exposure than the general bathroom floor.

It also needs to work with a sloped drainage surface.

Important selection factors include:

manufacturer-declared suitability;

expected contaminants such as soap;

wet-surface performance;

tile size;

shower-floor geometry;

drain type;

surface structure;

cleaning requirements.

Smaller Tile Can Adapt More Easily to Complex Slopes

Traditional shower floors often use multiple sloping planes leading toward a drain.

Smaller tiles and mosaics can conform more easily to those changing planes than large rigid pieces.

They also create more grout joints.

That can affect:

cleaning;

appearance;

how the floor feels underfoot.

More grout joints should not be treated as a substitute for choosing a tile intended for the wet-floor application.

Mosaics Require Product-Specific Evaluation

For some mosaics and strongly profiled surfaces, conventional DCOF testing can provide misleading results because of test-device limitations.

That is one reason ANSI A326.3 provides for manufacturer-declared product-use classifications in these cases.

For shower-floor mosaics, confirm the manufacturer's declared area of use instead of trying to apply one generic DCOF rule.

The companion article How to Choose Shower Floor Tile will examine this location in greater detail.

Shower Walls Have Different Priorities

A shower wall is not a walking surface.

That provides greater flexibility in:

tile size;

polish;

pattern;

decorative texture.

However, shower walls still need to tolerate repeated wetting and cleaning.

Consider:

wet-area suitability;

ease of removing soap residue;

surface texture;

number of grout joints;

material sensitivity to cleaners;

tile weight and format.

A heavily textured wall can be attractive while requiring much more cleaning than a smooth surface.

Tile Is Not the Shower Waterproofing

A low-absorption tile does not make a shower waterproof.

Neither tile nor grout should be treated as the complete water-management system.

The shower still needs an appropriate wet-area assembly behind or directly beneath the tile, including properly detailed drains, transitions, and penetrations.

Detailed waterproofing belongs to the Waterproofing content cluster.

For tile selection, the principle is simple:

Choose tile suitable for the exposure, but do not expect the finish tile to replace the shower waterproofing system.

Tub Surround Tile

A tub surround can have very different exposure depending on how the tub is used.

A tub-only wall may receive occasional splash.

A tub-shower surround receives regular direct wetting.

Consider:

intended wet-area use;

cleanability;

edge pieces;

maintenance around fixtures;

niches and shelves;

transitions to adjacent finishes.

Vanity Backsplashes and Decorative Walls

These are usually less demanding than shower or floor surfaces.

Selection can place more emphasis on:

appearance;

cleaning;

stain exposure;

edge finishing;

compatibility with countertops.

A floor-use classification generally provides no practical benefit on a wall that will never be walked on.

This is why not every bathroom surface needs to be specified for shower-floor conditions.

Surface Finish Changes Bathroom Performance

Two tiles made from the same material can behave differently because of their finish.

Common finishes include:

polished;

glossy;

matte;

honed;

textured;

structured;

brushed;

tumbled.

Polished and Glossy Surfaces

On walls, smooth polished or glazed surfaces can be relatively easy to wipe clean.

They may also show:

water spots;

soap residue;

fingerprints;

streaks.

On floors, do not assume a polished product is suitable for wet use unless its product information supports that application.

Matte Surfaces

Matte surfaces reduce reflection and may make some water spotting less visible.

But the word matte does not establish wet-floor suitability.

Products with the same visual finish can have different surface characteristics.

Highly Textured Surfaces

Texture can contribute to surface performance but can also trap:

soap;

mineral deposits;

dirt;

cleaning residue.

A strongly structured surface that makes sense on one floor may be unnecessarily difficult to maintain elsewhere.

Tile Size Affects More Than Appearance

Large and small tile can both work well in bathrooms.

They create different installation and maintenance conditions.

Large Tile

Potential advantages include:

fewer grout joints;

a visually continuous surface;

less grout to clean.

Potential challenges include:

greater substrate-flatness demands;

more difficult handling;

more demanding layout;

more noticeable lippage when installation is poor;

difficulty following compound shower-floor slopes.

Small Tile and Mosaic

Potential advantages include:

easier adaptation to changing planes;

flexibility around some drains;

more layout options in small areas.

Potential trade-offs include:

more grout joints;

more joint cleaning;

a visually busier surface.

There is no universal design rule that large tile automatically makes a bathroom look larger or small tile makes it look smaller.

Lighting, grout contrast, pattern, room geometry, and layout all affect visual perception.

The companion article Large vs. Small Bathroom Tiles will examine this decision in depth.

Rectified Tile Does Not Mean Groutless Tile

Rectified ceramic tiles have mechanically finished edges that provide tighter dimensional tolerances than many conventional tiles.

This can support a more precise layout.

It does not eliminate the need for grout joints.

Joint width still needs to account for factors such as:

actual dimensional variation;

tile type;

pattern;

installation standard;

substrate conditions;

workmanship.

Do not interpret rectified as permission for a zero-width joint.

Grout Color Changes the Visual Result and Maintenance Experience

Grout is both a joint material and a visible part of the design.

Light Grout

Light grout can create a continuous appearance with light-colored tile.

It can also make some contaminants or discoloration more visible.

Dark Grout

Dark grout can create strong contrast and can visually disguise some stains.

It can also make light-colored mineral deposits, soap residue, or cleaner residue more obvious.

No grout color is maintenance-free.

The dedicated grout guide explains grout type and installation considerations.

Cleaning Should Influence Tile Selection Before Purchase

The easiest time to plan for bathroom tile cleaning is before installation. Include preparation, wet-area work, and finish details in the tile installation budget.

Ask how the surface will actually be cleaned.

Smooth and Textured Surfaces

Smooth surfaces generally provide fewer recesses for residue to collect.

Strongly textured surfaces can require:

brushing;

more thorough rinsing;

additional cleaning around recesses.

Number of Grout Joints

A mosaic installation creates substantially more grout-joint area than a large-format installation.

That can be desirable for layout or shower-floor geometry, but it changes the cleaning workload.

Natural Stone

Cleaning products should match the stone's mineral composition.

Acid-sensitive stone is a poor choice for a household that intends to use acidic bathroom cleaners routinely.

Dark Tile and Hard Water

Dark tile can make light-colored mineral deposits and dried water spots more visible.

This does not make dark tile unsuitable.

It simply changes the visible maintenance pattern.

Light Tile

Very light floors can make hair, dark dirt, or some stains more visible.

There is no universally easiest color to maintain.

Three-Dimensional Wall Tile

Relief and sculpted wall tiles can add visual depth.

They can also make cleaning harder around:

shower fixtures;

sinks;

niches;

frequently splashed areas.

A deeply textured tile may be much easier to live with on a decorative dry wall than inside a heavily used shower.

Pattern Affects Installation Complexity

Patterns such as:

herringbone;

diagonal layouts;

offsets;

mixed-size patterns;

borders;

can increase:

cuts;

waste;

layout time;

alignment difficulty.

The tile itself can be suitable while the chosen pattern makes the project significantly more demanding.

Check Shade and Pattern Variation

Tiles can intentionally vary in:

shade;

color;

veining;

pattern;

texture.

Some collections are very uniform.

Others deliberately imitate handmade tile, natural stone, or wood.

Review several pieces together rather than judging the collection from a single sample.

For highly variable products, plan how pieces will be distributed before installation.

Plan Exposed Edges Before Ordering

Not every tile collection includes:

bullnose;

trim;

matching edge pieces;

finished outside corners.

Identify how exposed edges will be handled around:

niches;

half walls;

shower openings;

backsplashes;

wall terminations.

Possible solutions include:

factory trim;

finished tile edges;

stone trim;

metal profiles;

another intentional edge treatment.

Leaving this decision until installation day can create avoidable compromises.

Niches and Benches Change Tile Planning

A shower niche adds:

inside corners;

exposed edges;

small surfaces;

additional cuts.

A bench adds both vertical and horizontal surfaces.

A tile format that works well across a large shower wall may create awkward cuts in a small niche.

Check these features during layout planning, not after tile has been ordered.

Bathroom Tile and Heated Floors

Ceramic, porcelain, and many natural-stone finishes can be compatible with properly designed floor-heating systems.

The complete assembly matters.

Verify compatibility among:

heating system;

substrate;

underlayment or membrane;

mortar;

tile or stone;

movement provisions.

Do not approve a tile solely because it is marketed as “radiant heat compatible.”

Bathrooms for Older Adults or People With Mobility Limitations

These bathrooms justify particular attention to the complete walking surface.

Consider:

wet-use suitability;

drainage;

surface contaminants;

transitions;

slope;

cleaning and maintenance;

grab bars and other safety features;

applicable accessibility requirements.

No tile surface can eliminate fall risk.

Do not use a DCOF number as a substitute for complete accessible or safer bathroom design.

Children's Bathrooms

A children's bathroom often benefits from emphasizing:

cleanability;

durable floor use;

stain resistance;

wet-floor suitability;

ease of future replacement.

Delicate materials can still be used, but maintenance expectations should be realistic.

Guest Bathrooms

A lightly used guest bathroom may allow greater emphasis on decorative materials because traffic and maintenance demands can be lower.

However, a frequently used guest shower still requires tile suitable for its actual wet exposure.

Frequency of use changes maintenance priorities, not technical suitability.

Primary Bathrooms

A primary bathroom can experience daily:

shower use;

barefoot traffic;

water exposure;

cleaning;

cosmetics;

temperature and humidity changes.

A practical selection balances:

appearance;

surface performance;

maintenance;

repairability;

future material availability.

Do You Need the Same Tile on Every Surface?

No.

Different bathroom surfaces have different requirements.

One practical strategy is to coordinate materials rather than make every surface identical.

For example:

a floor-rated tile for the main floor;

a smaller compatible product for the shower floor;

a larger tile from the same collection on shower walls.

This can create a consistent visual design while allowing each surface to use a suitable format.

What to Check on a Tile Technical Sheet

Before purchasing bathroom tile, look for product-specific information about:

material type;

floor or wall use;

interior or exterior approval;

wet-area suitability;

hard-surface flooring classification where relevant;

water absorption;

finish;

dimensions;

thickness;

shade variation;

chemical resistance where relevant;

cleaning instructions;

installation limitations.

For natural stone, also check:

stone type;

finish;

wet-area suitability;

sealing recommendations;

cleaner restrictions.

If the supplier cannot establish whether a product is intended for a shower floor, resolve that uncertainty before purchase.

Bathroom Tile Shopping Checklist

Before ordering, confirm:

Common Bathroom Tile Selection Mistakes

Choosing by Material Name Alone

“Porcelain” or “ceramic” does not establish suitability for every bathroom surface.

Using Wall-Only Tile on a Floor

Always verify floor approval.

Assuming Porcelain Is Automatically Suitable When Wet

Low water absorption and wet-floor suitability are different properties.

Treating 0.42 DCOF as a Universal Safety Threshold

Current ANSI A326.3 uses a broader product-use classification system.

A DCOF value is only one piece of the selection process.

Assuming Texture Guarantees Safety

Visible texture alone cannot establish suitability.

Choosing Shower Floor Tile Only by Size

Small formats can work well with shower slopes, but manufacturer-declared wet-floor suitability still matters.

Treating Grout as Waterproofing

Grout is part of the finish.

The wet-area assembly still requires appropriate water management.

Choosing Natural Stone Without Considering Cleaning

Some stones can be damaged by commonly used acidic cleaners.

Assuming Every Stone Must Be Sealed

Sealing requirements vary by material and application.

Selecting Heavy Texture Without Considering Soap Residue

A surface characteristic that provides one benefit can create a maintenance trade-off.

Forgetting Exposed Edges

Niches, half walls, and outside corners require planned finishes.

Choosing Tile Before Planning Layout

The chosen format can create awkward cuts and alignment problems around drains, niches, fixtures, and walls.

A Practical Bathroom Tile Selection Process

Step 1: Divide the Bathroom Into Surfaces

List each location separately:

main floor;

shower floor;

shower walls;

tub surround;

backsplash;

decorative walls.

Step 2: Define the Exposure

Determine whether each surface is:

generally dry;

occasionally splashed;

regularly wet;

directly exposed to shower water;

walked on while wet.

Step 3: Confirm Intended Use

Check the actual product information.

Step 4: Evaluate Walking Surfaces

For floor tile, consider:

product-use classification;

wet conditions;

contaminants;

surface structure;

drainage;

maintenance;

user needs.

Step 5: Evaluate Maintenance

Ask:

What will collect on the surface?

Which cleaners will be used?

How many grout joints are acceptable?

Will mineral deposits be highly visible?

Step 6: Choose Size and Finish

Once technical suitability is established, narrow the choices by appearance and format.

Step 7: Check Layout and Details

Confirm:

cuts;

drains;

niches;

corners;

edges;

transitions;

fixture locations.

Step 8: Review the Complete Assembly

Tile is the finish layer.

Confirm that substrate, setting materials, joints, and the wet-area water-management system are appropriate for the project.

Frequently Asked Questions

What Is the Best Tile for a Bathroom?

There is no single best bathroom tile.

The right choice depends on location, wet exposure, whether the surface is walked on, cleaning expectations, and the manufacturer's intended use.

Is Porcelain Better Than Ceramic for a Bathroom?

Not automatically.

Porcelain has water absorption of 0.5% or less, but many non-porcelain ceramic products perform well on bathroom walls and some bathroom floors.

Compare the exact products and applications.

Is Porcelain Waterproof?

Porcelain has very low water absorption, but that does not make the complete tiled assembly waterproof.

Joints, penetrations, substrate, and the wet-area water-management system still matter.

Can Wall Tile Be Used on a Bathroom Floor?

Only when the manufacturer also approves the product for floor use.

Can Floor Tile Be Used on a Wall?

Often, but product approval, tile weight, format, wall construction, and installation requirements still need to be considered.

What Tile Is Best for a Shower Floor?

Choose a product intended for the wet shower-floor environment and compatible with the drainage geometry.

Surface characteristics, contaminants, size, cleaning, and manufacturer classification all matter.

The companion guide How to Choose Shower Floor Tile will address this application in detail.

Are Small Tiles Better for Shower Floors?

Small tiles and mosaics can conform more easily to sloped and compound shower-floor geometry.

That does not mean every small tile is suitable for a shower floor.

Are Large Tiles Good for Bathrooms?

Yes, when the specific product and installation are appropriate.

Large tile reduces grout-joint quantity but increases the importance of substrate flatness, handling, layout, and installation quality.

Is Polished Tile Too Slippery for a Bathroom?

Appearance alone cannot answer this.

Check the manufacturer's intended use and applicable hard-surface flooring classification for the exact product and location.

What Does DCOF Mean?

Dynamic Coefficient of Friction is a measured property used in the evaluation of hard-surface flooring.

It is not synonymous with overall slip resistance and does not predict with certainty whether a person will slip.

Does Bathroom Tile Need a DCOF of 0.42?

Not as a universal rule.

Under ANSI A326.3, a wet DCOF of 0.42 is one pathway for Interior, Wet classification, while manufacturer-declared classifications are also permitted in specified cases.

More demanding or unusual conditions require evaluation of the complete project rather than one number.

Does ADA Require a Specific DCOF?

No universal numerical coefficient-of-friction threshold is established by the ADA Standards for accessible floor surfaces.

Accessible surfaces must be slip resistant, but product selection still needs to account for actual conditions.

Does Natural Stone Need to Be Sealed in a Bathroom?

It depends on the stone, finish, exposure, and product.

Some stones benefit from an impregnating sealer, while others may not require one.

Sealing can improve stain resistance but does not make stone stain-proof or waterproof.

Which Bathroom Tile Is Easiest to Clean?

There is no universal winner.

Smooth glazed ceramic or porcelain surfaces with fewer joints are often relatively straightforward to maintain, but actual cleaning depends on finish, grout, water quality, and contaminants.

Is Dark Tile Harder to Maintain?

Not necessarily.

Dark surfaces can make light-colored mineral deposits and dried water spots more visible.

Does Tile Need Waterproofing Behind It?

Wet areas such as showers require an appropriate water-management assembly.

The exact construction depends on the installation method and applicable requirements.

Tile and grout are not substitutes for that system.

Final Bathroom Tile Decision Guide

A useful bathroom-tile decision can be reduced to four questions.

Where is the tile going?
A shower floor, shower wall, main floor, and backsplash are different applications.

Is the exact product intended for that location?
Material names and marketing descriptions are not enough.

What conditions will the surface experience?
Consider water, soap, barefoot traffic, cleaning, drainage, and mineral deposits.

Can you live with the material after installation?
Cleaning effort, grout-joint quantity, stone sensitivity, texture, and replacement availability matter long after the color decision is made.

The strongest bathroom design is not the one that uses the most expensive tile.

It is the one that puts an appropriate tile on each surface and balances performance, maintenance, and appearance with the way the bathroom will actually be used.

Technical References

Technical guidance in this article was reviewed against the Tile Council of North America's 2026 TCNA Handbook for Ceramic, Glass, and Stone Tile Installation, TCNA's ANSI A326.3 Dynamic Coefficient of Friction guidance, and the Natural Stone Institute's Care and Cleaning of Natural Stone.

Additional technical review included ANSI A137.1 ceramic-tile specifications, ASTM C373 water-absorption testing, ANSI A326.3 product-use classifications, ANSI A108 tile-installation standards, U.S. accessibility requirements for floor surfaces, and Natural Stone Institute wet-area and maintenance guidance.

Product technical data, manufacturer-declared area of use, applicable installation standards, locally adopted codes, and project-specific requirements control the actual installation.

Technical review: October 8, 2026.