Is Ceramic Tile or Porcelain Better for Bathroom Floors?
Ceramic and porcelain tile are not the same material. One absorbs water like a sponge and the other repels it like glass, and that single difference determines which belongs on your bathroom floor.
Porcelain is a denser, harder type of ceramic made from finer clays fired at higher temperatures (cone 10-13, or 2381°F / 1305°C and above). Standard ceramic tile fires at lower temperatures (cone 06-4, or 1830-2167°F / 999-1186°C) and absorbs significantly more water. For a bathroom floor that faces daily moisture, steam, and occasional standing water, the choice between them comes down to absorption rate, durability, and installation requirements.
By the Numbers
Ceramic vs Porcelain Bathroom Tile — Key Research Findings
Sources: ASTM C373, TCNA Handbook, manufacturer data sheets
This guide covers every factor that matters for bathroom flooring: water absorption, durability ratings, installation complexity, slip resistance, maintenance demands, and cost per square foot for both ceramic and porcelain tile. You will find direct comparisons, a buying checklist, and answers to the questions most homeowners ask before making this decision.
What Is the Real Difference Between Ceramic and Porcelain Tile?
Porcelain tile is a subtype of ceramic made from finer, denser clay with higher kaolin content and fired at temperatures above 2381°F (1305°C). Standard ceramic tile uses coarser clays and fires at lower temperatures between 1830°F (999°C) and 2167°F (1186°C).
The firing temperature difference is not just a technical footnote. Higher heat drives off more water from the clay structure, fuses silica particles more completely, and produces a body with far fewer microscopic pores. According to the Tile Council of North America (TCNA), porcelain must meet an ASTM C373 water absorption standard of 0.5% or less to carry the porcelain label.
Standard ceramic tiles absorb water at rates between 3% and 7% by weight. This happens because the lower firing range does not fully vitrify the clay body. The clay particles never fully melt and fuse. Tiny channels remain between particles.
Those channels are what make ceramic tile behave differently in a bathroom. Water enters the pores, and when temperature drops, that water expands. Over years, this cycle weakens the tile from within. Porcelain closes those channels almost completely.
Key Specifications:
- Porcelain: under 0.5% absorption, fired at cone 10-13 (2381°F / 1305°C+)
- Ceramic: 3-7% absorption, fired at cone 06-4 (1830-2167°F / 999-1186°C)
- Porcelain uses refined kaolin clays; ceramic uses less processed ball clays and talc blends
For a deeper comparison of these two materials beyond bathroom applications, read our complete guide on ceramic and porcelain tile differences, covering every application from floors to walls.
Which Tile Absorbs Less Water: Ceramic or Porcelain?
Porcelain absorbs under 0.5% of its weight in water. Ceramic absorbs 3% to 7%. This is not a small gap, it is a tenfold difference in how much moisture enters the tile body.
In a bathroom, water sits on the floor after every shower. Steam condenses on surfaces daily. A tile with 5% absorption soaks up that moisture repeatedly. Over freeze-thaw cycles (in colder climates where bathroom temperatures swing), absorbed water expands inside the tile body and creates internal stress cracks.
According to ASTM C373 testing standards, porcelain achieves its low absorption rate because the higher firing temperature pushes the clay past its vitrification point. Vitrification means the silica and alumina in the clay body have melted enough to flow into and seal the microscopic gaps between particles. Ceramic never reaches true vitrification.
This difference matters more in bathrooms than in kitchens. Bathroom humidity stays higher for longer periods. A porcelain bathroom floor tile will not swell, crack, or harbor mold inside the tile body the way ceramic can over years of bathroom exposure.
For most bathroom floors, porcelain is the clear winner on absorption alone. If you choose ceramic, seal it annually and avoid standing water.
How Durable Are Ceramic and Porcelain Tiles for Bathroom Use?
Porcelain rates PEI 4 to 5 on the Porcelain Enamel Institute wear scale, meaning it handles heavy foot traffic and commercial use without visible wear. Ceramic typically rates PEI 2 to 3, suitable for light to moderate residential traffic.
The PEI rating measures surface abrasion resistance. A bathroom floor does not face the same foot traffic as a kitchen or entryway, but it faces different stresses: dropped toiletries, cleaning chemicals, constant moisture, and temperature swings. Porcelain handles all of these better because its denser body resists chipping, scratching, and chemical etching.
Porcelain also offers through-body color. If a chip does occur, the exposed material underneath matches the surface color. Most ceramic tiles have a colored glaze layer over a lighter clay body. A chip on ceramic reveals a starkly different color beneath the surface.
The Mohs hardness scale tells the same story. Porcelain rates 7-8 on the Mohs scale (similar to granite). Ceramic rates 5-6 (closer to glass). A dropped shampoo bottle that might scratch ceramic will typically leave porcelain undamaged.
Durability Specifications:
- Porcelain PEI rating: 4-5 (heavy residential to commercial)
- Ceramic PEI rating: 2-3 (light to moderate residential)
- Porcelain Mohs hardness: 7-8
- Ceramic Mohs hardness: 5-6
Porcelain lasts 30-50 years on bathroom floors with proper installation. Ceramic may need replacement after 15-20 years in the same environment.
What Does Each Tile Type Cost to Buy and Install?
Ceramic tile costs $2 to $7 per square foot for the material alone. Porcelain costs $4 to $12 per square foot. Installation labor adds $5 to $12 per square foot for both, though porcelain installation often runs higher because cutting it requires a wet saw with a diamond blade.
A 50-square-foot bathroom floor costs roughly $350 to $600 in ceramic material or $500 to $850 in porcelain material, including standard installation. The total installed cost for that same bathroom ranges from $600 to $1,200 for ceramic and $900 to $1,700 for porcelain.
Porcelain costs more upfront but its lifespan is double that of ceramic on a bathroom floor. The cost per year of service actually favors porcelain over a 30-year period. Ceramic replaced at year 15 becomes more expensive than porcelain installed once.
Use the table below to match your budget and durability needs to the right tile choice before buying materials.
Product Comparison
Ceramic vs Porcelain Bathroom Floor Tile — Side by Side
Detailed comparison to help you choose the right bathroom flooring material.
| Feature | Porcelain Tile | Ceramic Tile |
|---|---|---|
| Water absorption | Under 0.5% (ASTM C373) | 3-7% |
| Material cost per sq ft | $4-$12 | $2-$7 |
| Installed cost (50 sq ft) | $900-$1,700 | $600-$1,200 |
| PEI wear rating | 4-5 (heavy traffic) | 2-3 (light-moderate) |
| Lifespan on bathroom floor | 30-50 years | 15-20 years |
| Cutting difficulty | Wet saw (diamond blade) | Snap cutter or wet saw |
| Slip resistance (COF) | 0.42-0.60+ (textured) | 0.35-0.50 (varies) |
| Our verdict for bathrooms | Best overall for wet areas | Good for powder rooms, walls |
Prices verified at time of publication. Installation costs vary by region and substrate condition.
Is Ceramic or Porcelain Tile Easier to Install in a Bathroom?
Ceramic tile is easier to cut and install. A standard snap cutter scores and breaks ceramic cleanly along straight lines. Porcelain requires a wet saw with a continuous diamond blade because its denser body shatters unpredictably with manual snap cutters.
Porcelain also weighs more per square foot than ceramic of the same size. A 12×24-inch porcelain tile can weigh 5-7 pounds per piece versus 3-5 pounds for ceramic. This extra weight makes handling, positioning, and adjusting porcelain tiles more physically demanding during installation.
Both tile types require the same substrate preparation: a clean, level, deflection-free subfloor with appropriate underlayment. For bathrooms, a cement backer board or uncoupling membrane like Schluter Ditra is recommended under both materials to prevent cracks from subfloor movement.
Thinset mortar selection differs between the two. Porcelain’s low absorption means standard thinset cannot mechanically bond to it. Installers must use a polymer-modified thinset rated for porcelain. Ceramic accepts standard thinset because the porous body provides good mechanical adhesion. Using the wrong thinset with porcelain is one of the most common causes of loose or cracked bathroom tiles.
For DIY installers, ceramic is the more forgiving choice. For professional installation, the material choice matters less since pros have the tools and knowledge for either. If you are comfortable using a wet saw and working with heavier pieces, porcelain is manageable for a DIY bathroom project with proper preparation.
Which Tile Offers Better Slip Resistance for Wet Bathroom Floors?
Both ceramic and porcelain can achieve the slip resistance needed for bathroom floors, but porcelain offers more consistent options. The key metric is the Coefficient of Friction (COF). The Tile Council of North America recommends a dynamic COF of 0.42 or higher for wet areas.
Glossy glazed tiles of either type become dangerously slippery when wet. A polished porcelain with a COF of 0.30 is just as hazardous as a glossy ceramic with the same rating. The surface texture matters more than the tile body material when it comes to slip resistance.
Porcelain manufacturers offer more matte, textured, and wood-look finishes with built-in slip resistance. These textures are embedded in the porcelain body during pressing, not just applied as a surface coating. Ceramic matte finishes exist but the softer body wears down faster underfoot, gradually reducing the texture that provides grip.
Slip Resistance Specifications:
- Minimum recommended dynamic COF for bathroom floors: 0.42
- Textured porcelain COF range: 0.42-0.60+
- Glossy glazed tile COF: 0.25-0.35 (not recommended for bathroom floors)
Choose tile with a DCOF rating printed on the box or spec sheet. If no rating is listed, assume it is not rated for wet areas and look for tiles that are specifically labeled for bathroom or wet floor use. Both ceramic and porcelain can meet the standard if properly selected.
Quick Reference
Bathroom Floor Tile — Key Terms Explained
Quick definitions for the terms used throughout this guide.
The process where clay particles fuse together during firing, closing microscopic pores and creating a waterproof body.
Porcelain Enamel Institute scale (1-5) measuring surface abrasion resistance. PEI 4-5 handles heavy foot traffic.
Coefficient of Friction; dynamic COF measures slip resistance when tile is wet. Minimum 0.42 recommended for bathroom floors.
Percentage of water weight absorbed by tile under ASTM C373 testing. Porcelain must be under 0.5% for certification.
Tile where the clay body is pigmented throughout its thickness. Chips and wear do not reveal a different color underneath.
A plastic underlayment that separates tile from subfloor movement, preventing cracks from structural shifting.
Mortar with polymer additives that bond to low-absorption surfaces like porcelain. Required for porcelain tile installation.
Glazed tile has a glass coating fused to the surface. Unglazed tile is the same material throughout with no surface coating.
Design and Style Options: Does Ceramic or Porcelain Look Better?
Porcelain offers far more design versatility for bathroom floors. It can be manufactured to mimic natural stone, hardwood, concrete, and even fabric textures with high realism. The inkjet printing technology used on porcelain produces grain patterns and veining that repeat less frequently across tiles.
Ceramic design options are more limited but still extensive. Ceramic excels at bright, glossy glazes and handcrafted looks. Small-batch ceramic tiles with reactive glazes produce variegated surfaces that porcelain’s mass-production process cannot easily replicate. For a unique, artisanal bathroom floor, handmade ceramic decorative tiles offer character that uniform porcelain cannot match.
Porcelain’s through-body color means that rectified edges (precision-cut for minimal grout lines) show no color difference at the edge. Ceramic with a glaze over a different-colored body will show a visible line at every edge, making narrow grout lines less visually clean.
For a bathroom floor that needs to match adjacent hardwood or stone, porcelain is the better choice. For a bathroom where colorful, glossy, or artistic expression matters more than water performance, ceramic can work beautifully in a powder room or guest bathroom with lower moisture exposure.
How Do You Maintain Ceramic vs Porcelain Bathroom Floors?
Porcelain bathroom floors require almost no maintenance beyond regular cleaning. The near-zero absorption rate means nothing penetrates the tile body. Stains sit on the surface. Mold and mildew cannot grow inside the tile. A damp mop with a pH-neutral cleaner is sufficient for weekly cleaning.
Ceramic bathroom floors need more attention. The porous body absorbs soap scum, mineral deposits from hard water, and the occasional spill. Unglazed ceramic absorbs these directly. Even glazed ceramic has microscopic cracks (crazing) in the glaze layer that allow moisture to reach the absorbent body beneath.
Sealing ceramic bathroom tile is recommended every 12-18 months. Use a penetrating sealer designed for ceramic tile, not a surface coating that will wear off underfoot. A penetrating tile sealer for ceramic fills the microscopic pores without changing the surface appearance or creating a slippery film.
Porcelain does not need sealing. The body is already impervious. Grout lines between porcelain tiles still need sealing because grout is cement-based and porous. This is true for both tile types: grout always needs sealing regardless of the tile material.
For cleaning products, avoid acid-based cleaners on either tile type. Acids etch the surface of glazed ceramic and can dull polished porcelain. Use pH-neutral tile cleaners. For soap scum buildup, a solution of warm water and mild dish detergent is effective and safe for both materials.
Common Myths About Ceramic and Porcelain Bathroom Tile
Myth vs Fact
Bathroom Floor Tile — Common Myths Debunked
Separating fact from fiction on the most common bathroom tile misconceptions
✗ Myth
All porcelain tiles are waterproof and never need sealing.
✓ Fact
Porcelain tile body is nearly waterproof (under 0.5% absorption per ASTM C373), but the grout lines between tiles are cement-based and porous. Grout always requires sealing to prevent water penetration and staining.
✗ Myth
Ceramic tile cannot be used on bathroom floors at all.
✓ Fact
Ceramic tile works in bathrooms with proper sealing and maintenance. Powder rooms and guest bathrooms with low moisture exposure are suitable for ceramic. Full bathrooms with daily showers benefit from porcelain’s lower absorption.
✗ Myth
Glossy porcelain is fine for bathroom floors if it looks good.
✓ Fact
Glossy tile of any type becomes an extreme slip hazard when wet. The TCNA recommends a dynamic COF of at least 0.42 for bathroom floors. Most glossy tiles measure 0.25-0.35 DCOF, well below the safety threshold for wet areas.
✗ Myth
Thicker tile means better quality and durability.
✓ Fact
Tile thickness (typically 8-12mm) is not a quality indicator. Absorption rate, PEI rating, and breaking strength (measured in pounds per ASTM C648) are the real quality metrics. A thin porcelain tile rated PEI 5 outperforms a thick ceramic rated PEI 2.
✗ Myth
Porcelain tile is too cold for bathroom floors.
✓ Fact
Both ceramic and porcelain feel cool underfoot because they are thermally conductive materials. Porcelain is not significantly colder than ceramic. Radiant floor heating works equally well under both tile types and is the standard solution for cold bathroom floors regardless of tile choice.
Buying Checklist for Bathroom Floor Tile
Before you buy any bathroom floor tile, verify each of the following specifications. These are the factors that separate a floor that lasts 30 years from one that fails in five. Check off each point before making your final purchase decision.
Buying Guide
Before You Buy — Bathroom Floor Tile Checklist
Check off each point before making your decision.
Is Porcelain Tile Worth the Extra Cost for a Small Bathroom?
For a small bathroom of 30-50 square feet, the material cost difference between ceramic and porcelain is $60 to $250. That is a small premium to pay for a floor that will last 30 to 50 years without replacement.
The total installed cost difference in a small bathroom is approximately $300 to $500 more for porcelain. Spread that over the 30-year minimum lifespan of porcelain, and the annual premium is $10 to $17 per year. For a floor you walk on barefoot every morning, porcelain’s lower absorption, higher durability, and better slip resistance options justify the small upfront difference.
What Underlayment Is Best for Bathroom Tile Floors?
A cement backer board (like cement backer board for tile) or an uncoupling membrane is required over wood subfloors in bathrooms. Standard plywood alone is not an acceptable substrate for either ceramic or porcelain tile in wet areas.
Cement backer board costs $1.50 to $3 per square foot and provides a stable, water-resistant base. Uncoupling membranes like Schluter Ditra cost $2 to $4 per square foot and add the benefit of vapor management and crack isolation. For bathrooms over a crawl space or in humid climates, the membrane is the better choice because it prevents subfloor moisture from reaching the tile assembly.
Both underlayments work with ceramic and porcelain. The underlayment choice does not change based on tile type. What changes is the thinset mortar: use polymer-modified thinset for porcelain over either underlayment, and standard thinset for ceramic over either underlayment.
Can I Install Ceramic or Porcelain Tile Over Existing Bathroom Tile?
Installing new tile over existing tile is possible with either ceramic or porcelain, but it comes with significant risks. The existing tile must be perfectly bonded to the substrate with no hollow-sounding areas, cracks, or loose pieces. Any movement in the old tile will telegraph through to the new installation.
The existing tile surface must be roughened with a grinder or heavy-grit sandpaper to create a mechanical bond for the new thinset. A high-bond polymer-modified thinset rated for tile-over-tile installation is required for both ceramic and porcelain in this scenario.
The downside is floor height. Adding a second layer of tile plus thinset raises the floor by 3/8 to 3/4 inch. This creates a lip at the bathroom doorway, may require cutting the door bottom, and can interfere with toilet flange alignment. Removing the old tile and starting fresh is the better long-term approach for bathroom floors where water exposure is constant.
Why Does My Ceramic Bathroom Tile Feel Cold in the Morning?
Ceramic and porcelain are both thermally conductive materials. They transfer heat away from your feet faster than wood, vinyl, or carpet. The tile is not actually colder than the room, it just pulls heat from your skin more efficiently, which your body interprets as cold.
Porcelain and ceramic have nearly identical thermal conductivity. Neither one feels warmer than the other underfoot. The solution for both is radiant floor heating, which can be installed as an electric mat system under the tile during installation. Radiant heating adds $8 to $15 per square foot to the project cost but eliminates the cold-floor problem entirely for both tile types.
What Is the Difference Between Glazed and Unglazed Porcelain for Bathrooms?
Glazed porcelain has a glass coating fused to the surface during firing. Unglazed porcelain (also called full-body or through-body porcelain) has no coating, with the color and texture running through the entire thickness of the tile. Unglazed porcelain offers the best slip resistance because the surface is naturally matte and textured.
Glazed porcelain provides better stain resistance on the surface because the glass coating is non-porous. However, if the glaze wears through or chips, the exposed body may differ in color depending on the manufacturing process. Unglazed porcelain shows no color change when worn or chipped because the body is uniform throughout.
For bathroom floors, unglazed or matte-glazed porcelain with a DCOF of 0.42 or higher is the safest choice. High-gloss glazed porcelain should be reserved for bathroom walls where slip risk is not a concern. Both glazed and unglazed porcelain meet the under-0.5% absorption standard, so water performance is not a deciding factor between them.
How Long Do Ceramic Bathroom Floors Last Compared to Porcelain?
Ceramic bathroom floors last 15 to 20 years before showing significant wear, glaze crazing, or moisture damage. Porcelain bathroom floors last 30 to 50 years with proper installation. The lifespan gap comes from three factors: absorption rate, surface hardness, and glaze durability.
Ceramic absorbs bathroom moisture over time, and that moisture weakens the tile body through repeated expansion and contraction cycles. The softer ceramic surface wears down from foot traffic and cleaning. Porcelain resists all three degradation mechanisms because it is denser, harder, and nearly impervious to water.
The grout between tiles fails before either tile type. Expect to regrout or reseal grout every 5 to 10 years regardless of whether you choose ceramic or porcelain. Epoxy grout extends grout life to 15 to 20 years and is worth the premium for bathroom floors. A waterproof epoxy grout for bathroom tile eliminates the most common point of failure in both ceramic and porcelain installations.
Are All Porcelain Tiles Safe for Wet Bathroom Floors?
Not all porcelain tiles are safe for wet bathroom floors. Porcelain’s low absorption rate addresses water damage but does nothing for slip resistance. A polished or high-gloss porcelain can have a DCOF as low as 0.25, which is extremely slippery when wet and well below the 0.42 minimum recommended for bathroom floors.
Check the manufacturer’s spec sheet for the dynamic coefficient of friction (DCOF) rating. The rating must be 0.42 or higher for wet areas. Look for tiles specifically labeled for bathroom or wet floor use. Textured, matte, and wood-look porcelain tiles typically achieve safe DCOF ratings. If the retailer cannot provide a DCOF number, do not buy that tile for a bathroom floor.
Do I Need to Seal Ceramic Bathroom Floor Tiles?
Yes, ceramic bathroom floor tiles should be sealed every 12 to 18 months. Unglazed ceramic must be sealed because the porous body absorbs water, soap, and contaminants directly. Glazed ceramic benefits from sealing because the glaze layer develops microscopic cracks (crazing) over time that allow moisture to reach the absorbent body beneath.
Use a penetrating sealer rather than a surface coating. Penetrating sealers fill the pores from within without changing the tile’s appearance or creating a film that can become slippery when wet. Surface sealers wear off quickly under foot traffic and can create a slip hazard. Apply sealer after grout has fully cured and test in an inconspicuous area first.
Why Is My Bathroom Tile Grout Cracking or Crumbling?
Cracking grout in a bathroom usually results from subfloor deflection, not a grout problem. When the subfloor flexes underfoot, tile and grout cannot flex with it. The rigid grout cracks first. This happens with both ceramic and porcelain tile when the subfloor does not meet the L/360 deflection standard required by the TCNA for ceramic and porcelain installations.
The fix is not regrouting. The fix is addressing the subfloor from below (adding joist reinforcement or bridging) or from above (adding a second layer of plywood before reinstalling tile). Crumbling grout specifically indicates moisture penetration degrading the cement binder in the grout. This calls for epoxy grout replacement and checking that the underlayment is properly waterproofed.
What Size Tile Works Best for Small Bathroom Floors?
Medium-format tiles (12×12 inches to 12×24 inches) work best for small bathroom floors because they reduce the number of grout lines, creating a less cluttered visual appearance. Large-format tiles (24×24 inches and up) can work but require a perfectly flat subfloor and produce more waste from cuts in small, irregularly shaped bathrooms.
Mosaic tiles (2×2 inches or smaller on mesh sheets) provide the best slip resistance because the many grout lines create natural grip underfoot. The tradeoff is more grout to maintain and clean. For a small bathroom that gets daily shower use, a mosaic or small-format porcelain with a textured surface gives the safest wet-floor performance.
Does Porcelain Tile Crack More Easily Than Ceramic?
Porcelain is harder than ceramic (Mohs 7-8 vs 5-6) and resists surface chipping better, but it can crack under point loads if the subfloor is not properly prepared. No tile material tolerates subfloor deflection. The tile itself, whether ceramic or porcelain, is rigid and brittle.
Porcelain’s density means it transmits impact force through the tile to the substrate rather than absorbing it. Ceramic’s slightly more porous structure can absorb minor impacts without cracking. For bathroom floors with proper subfloor preparation, neither material should crack under normal use. Dropped heavy objects like a full shampoo bottle can crack either material if the subfloor has any flex.
Can I Mix Ceramic and Porcelain Tiles in the Same Bathroom?
You can mix ceramic and porcelain tiles in the same bathroom, and this is a common design strategy. Use porcelain on the floor for water and durability performance. Use ceramic on the walls for cost savings and a wider range of decorative glaze options. The two materials do not need to match in thickness or composition when installed on different planes.
Do not mix ceramic and porcelain on the same surface plane (the floor). They have different thicknesses, different expansion rates, and require different thinset mortars. Installing them side by side on the same floor creates lippage, differential movement, and eventual failure at the transition. Keep ceramic and porcelain on separate surfaces in the bathroom.
Which Tile Is Better for Bathroom Floor Resale Value: Ceramic or Porcelain?
Porcelain adds more perceived value to a bathroom than ceramic. Homebuyers and appraisers recognize porcelain as the premium flooring material for wet areas. A porcelain bathroom floor signals durability and low maintenance. Ceramic in a bathroom can raise concerns about water damage during home inspections.
The resale value difference is most significant in master bathrooms and family bathrooms where daily shower use creates constant moisture. In powder rooms without bathing fixtures, ceramic and porcelain are valued more equally since water exposure is minimal. For homes in higher price tiers, porcelain bathroom floors are expected and ceramic can look like a cost-cutting choice to buyers.
For more flooring comparisons beyond the bathroom, our guide on ceramic and porcelain kitchen flooring covers the different demands of kitchen environments, including stain resistance and dropped-item impact.
Porcelain tile is the better choice for bathroom floors in almost every case. Its near-zero water absorption (under 0.5% per ASTM C373), higher PEI wear rating (4-5), through-body color that hides chips, and 30-50 year lifespan justify the $2 to $5 per square foot premium over ceramic. For a 50-square-foot bathroom, the total installed cost difference of $300 to $500 buys a floor that will not swell, crack, or harbor mold from daily moisture exposure over decades of use.
Ceramic tile works in powder rooms and guest bathrooms with low moisture exposure. It costs less upfront and is easier for DIY installation. Seal it annually and avoid standing water. For any bathroom with a shower or bathtub, choose porcelain, verify the DCOF rating is 0.42 or higher, install it over a proper underlayment with polymer-modified thinset, and use epoxy grout. That combination produces a bathroom floor that lasts as long as the house.
