Best Waterproof Membrane For Bathroom of 2025
Last updated on 20/09/2025
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Best Choice
1
GURU USA G-Flex Uncoupling Membrane, Waterproof Membrane for Tile Vapor Barrier, Waterproofing Membrane for Shower & Bathroom Flooring Underlayment, 1 x 14 m (150 ft²) Roll
GURU
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GURU
GURU USA G-Flex Uncoupling Membrane, Waterproof Membrane for Tile Vapor Barrier, Waterproofing Membrane for Shower & Bathroom Flooring Underlayment, 1 x 14 m (150 ft²) Roll
Why we love it
- Superior waterproofing technology excellence.
- Crack prevention for lasting durability.
- Optimized heat distribution for comfort.
Main Highlights
- Waterproof Membrane: Engineered by GURU USA, the G-Flex Uncoupling Membrane represents the pinnacle of waterproofing technology, combining advanced materials and innovative design to deliver protection for your shower and bathroom; This uncoupling membrane roll measures 1 m x 14 m = 14 m² (150 ft²)
- Crack Prevention Membrane: The nodule distribution on a circular and square basis enhances G-Flex's resistance to movements, vibrations, and contractions, ensuring your tiles remain unaffected by environmental stresses. G-Flex's nodules also hold multi-directional deformation, cushioning tensions and allowing for crack bridging in floors & walls
- Waterproof Flooring: The strategically distributed nodules create a network that facilitates steam circulation and dissipation, creating waterproof flooring for bathrooms & other rooms; G-Flex's polyethylene sheet composition provides a moisture barrier underlayment, ensuring waterproofing protection for all your surfaces
- Optimized Heat Distribution: The same network that dissipates steam also ensures uniform distribution and dispersion of heat, making the G-Flex uncoupling membrane the ideal choice for underfloor heating installations as it creates a comfortable and cozy environment
- About Us: At GURU, we're proud to be renowned for our innovative waterproofing solutions and for delivering premium products to the construction sector; We deliver cutting-edge waterproofing solutions that set new standards for excellence and durability, empowering our clients to build with confidence
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Value for Money
2
C-TEC BW1 Ultimate Bathroom Tanking Solution Waterproof Membrane 5L
C-Tec
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C-Tec
C-TEC BW1 Ultimate Bathroom Tanking Solution Waterproof Membrane 5L
Why we love it
- No priming required beforehand.
- Ready to use immediately.
- Extremely easy to install.
Main Highlights
- No substrate priming required
- Ready to use – no mixing or dilution
- Low consumption – up to 2m per litre
- VOC and solvent free
- Incredibly easy to install
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3
Thermopanel VeloSeal Self Adhesive Sealing System Kit - Waterproof Membrane and Tape for Fast, Mess-Free Bathroom Installation, Ideal for Tiled and Slab Floors, 10m²
Thermopanel
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Thermopanel
Thermopanel VeloSeal Self Adhesive Sealing System Kit - Waterproof Membrane and Tape for Fast, Mess-Free Bathroom Installation, Ideal for Tiled and Slab Floors, 10m²
Why we love it
- Complete kit for easy installation.
- Superior waterproofing protects your home.
- Fast and clean application process.
Main Highlights
- 𝐂𝐎𝐌𝐏𝐋𝐄𝐓𝐄 𝐊𝐈𝐓: Each kit contains a 10m x 1m self-adhesive membrane, 10m of sealing tape, and 4x internal corners, providing everything you need for a successful installation. The kit includes a 10m x 1m self-adhesive membrane, 10m sealing tape, and 4x internal corners.
- 𝐒𝐔𝐏𝐄𝐑𝐈𝐎𝐑 𝐖𝐀𝐓𝐄𝐑𝐏𝐑𝐎𝐎𝐅𝐈𝐍𝐆: VeloSeal offers a robust barrier against moisture and water damage, ensuring your bathroom remains safe and dry for years. Enjoy beautifully waterproofed areas in your home, protecting against leaks and damage while saving time and labour costs for renovation projects.
- 𝐕𝐄𝐑𝐒𝐀𝐓𝐈𝐋𝐄 𝐔𝐒𝐀𝐆𝐄: Ideal for tiled and slab flooring, VeloSeal works seamlessly with your choice of flooring material, making it perfect for various bathroom designs.
- 𝐅𝐀𝐒𝐓 𝐈𝐍𝐒𝐓𝐀𝐋𝐋𝐀𝐓𝐈𝐎𝐍: Achieve professional waterproofing results in half the time of traditional methods. No mixing, no mess, and no waiting for adhesives to dry. The user-friendly process makes it accessible for all skill levels.
- 𝐂𝐋𝐄𝐀𝐍 𝐀𝐏𝐏𝐋𝐈𝐂𝐀𝐓𝐈𝐎𝐍: Enjoy a mess-free installation process with our self-adhesive membrane. Say goodbye to the hassle of cleanup and focus on your project. Simply prepare your subfloor, measure and cut the membrane, seal the transitions, and apply.
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4
YJINGRUI Waterproofing Shower Membrane 34.5m² Waterproof Membrane for Bathroom Floor, Shower Wall, Tiles, Steam Room, Basement(30 * 1.15m)
YJINGRUI
10% OffFree Shipping
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YJINGRUI
YJINGRUI Waterproofing Shower Membrane 34.5m² Waterproof Membrane for Bathroom Floor, Shower Wall, Tiles, Steam Room, Basement(30 * 1.15m)
10% OffFree Shipping
Why we love it
- Strong and flexible material.
- Thicker for better protection.
- Fits various waterproofing needs.
Main Highlights
- 【Non-woven Polyethylene Material】Waterproof membrane for showers made of non-woven polyethylene with good waterproof performance, strong toughness, tensile and tear resistance, ductility, easy to bend, etc., which can easily protect tiles and other tiles from moisture intrusion.
- 【0.6mm Thickened】Decoupling membrane thickness of 0.6mm, thicker than other products, better waterproof performance.
- 【Wide Application】Shower waterproof membrane roll can be used to prevent water leakage, suitable for basements, saunas, kitchens, bathrooms, pools, swimming pools, etc. Compatible with a variety of wall tiles to ensure versatility and adaptability. It can be used for roof waterproofing, crack waterproofing, basement waterproofing, foundation waterproofing and so on.
- 【Flexible】 The product is easy to cut, you can use the knife to cut it into any desired shape. And it is easy to bend and fold, can be installed in the corner of the wall, but also easy to store, has a strong flexibility.
- 【Easy to Use】Bathroom membrane is easy to use, just spread it on the mud mix. The surface design of the product enhances the bond between it and the substrate, ensuring a waterproof seal.
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5
Nassboards, Wall & Floor Decoupling Membrane Waterproof Underlay for Wood, Tile, Ceramic - Protective, Tear Resistant, Flexible Polyethylene Material - Easy DIY Installation, Home Improvement, 10m
Nassboards
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Nassboards
Nassboards, Wall & Floor Decoupling Membrane Waterproof Underlay for Wood, Tile, Ceramic - Protective, Tear Resistant, Flexible Polyethylene Material - Easy DIY Installation, Home Improvement, 10m
Why we love it
- Waterproofs walls and floors.
- Easy DIY installation.
- High-quality polyethylene material.
Main Highlights
- UNDERLAY PROTECTIVE BARRIER: This Nassboards decoupling membrane can be used to line both walls and floors in rooms that experience moisture, water and vapour, such as bathrooms, kitchens and conservatories. This protective barrier is compatible with wood, tile, ceramic, or stone and is suitable for home and commercial places. The sheet form allows this membrane to be moulded and cut to any imaginable shape; making waterproofing even the most elaborately shaped shower a simple task
- HIGH-QUALITY MATERIAL: The Nassboards Decoupling Membrane is made of a specially formulated, high-grade polyethylene material. This wall and floor barrier is sturdy, tear-resistant, foldable and flexible. It can also be cut with scissors or a blade which allows for easy trimming and shaping where needed. This product comes as a rolled orange sheet measuring one metre by thirteen metres, which can cover 12.6 square metres, and is 2 millimetres thick
- WATER & VAPOUR PROOF: The Nassboards Decoupling Membrance is a pliable waterproofing membrane designed to waterproof shower and bath areas. This waterproof tile membrane can prevent water or moisture from penetrating tile, ceramic, stone or wood floor, and can even help prevent tile cracks. Waterproofing membrane has a very low water vapour permeance, making it an excellent waterproofing membrane for shower, bathroom, and steam room installations to keep your walls and floors dry for years!
- EASY DIY INSTALLATION: This Decoupling Membrance, brought to you by Nassboards, is set up for quick and easy DIY installation. This product is suitable to install inside walls or under floors and it features polypropylene fabric on both sides to anchor the membrane, allowing it to be set in place with thin-set mortar. This waterproof membrane is suitable for tile, wood and ceramic and can be cut and bent to fit any shape, making it a universal waterproofing tool
- CUSTOMER SATISFACTION: At Nassboards, we know that we only offer high-quality products that follow standards of efficacy, versatility, and DYI friendly application. We hope you are fully satisfied with your purchase of our waterproof, ultra-thin decoupling membrane. If for any reason you are dissatisfied, please contact us so we can make it right
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6
petour Waterproof Membrane 3.3ft x 98.5ft Waterproofing Underlay for Bathroom Wood Tile Ceramic 24mils Thick Underlayment Waterproof Polyethylene Fabric Roll for Bathroom, Sauna, Steam Room, Grey
petour
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petour
petour Waterproof Membrane 3.3ft x 98.5ft Waterproofing Underlay for Bathroom Wood Tile Ceramic 24mils Thick Underlayment Waterproof Polyethylene Fabric Roll for Bathroom, Sauna, Steam Room, Grey
Free Shipping
Why we love it
- High-quality and long-lasting.
- Great wear and tear resistance.
- Easy to install anywhere.
Main Highlights
- High-Quality Material: This waterproof membrane is made of non-woven fabric and high-quality polyethylene, which has good waterproof performance and long service life.
- Wear-resistant and stable and stable: This waterproof membrane is formed in one piece during the production process. The membrane has good wear resistance, tear resistance and flexibility; our shower film can be used stably for a long time in the temperature range of -40℃~80℃.
- Easy to use: This waterproof membrane is very flexible and easy to install and use; just place it on the mixed mud; supports arbitrary cutting to adapt to various spaces.
- Wide application: This waterproof tile is very suitable for large-area waterproofing of bathroom floors, steam rooms, and roofs; this waterproof membrane can be used with marble floors, cement floors, ceramic tiles, ceramics, etc.; suitable for various indoor and outdoor building waterproofing projects.
- Service: If you have any questions, please feel free to contact our professional customer service, we will wholeheartedly provide you with quality service.
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7
Everbuild Aquaseal Wet Room System – Flexible – Waterproof – Easy To Apply – Internal And External – Standard Kit
Everbuild
24% OffFree Shipping
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Everbuild
Everbuild Aquaseal Wet Room System – Flexible – Waterproof – Easy To Apply – Internal And External – Standard Kit
24% OffFree Shipping
Why we love it
- Waterproof for diverse surfaces.
- Formulated with trusted practices.
- All-in-one, user-friendly kit.
Main Highlights
- WATERPROOF – Provides a permanent, flexible, and watertight seal prior to tiling on surfaces such as plasterboard, concrete, plywood, and more.
- FORMULATED WITH INDUSTRY BEST PRACTICES IN MIND – Following tried-and-tested principles from Scandinavia and Germany, this kit provides quality and peace of mind.
- ALL-IN-ONE KIT – Creates a watertight barrier on walls and floors with everything you need in one complete kit that covers up to 4.5m².
- EASY INSTRUCTIONS – Every component in the kit includes easy-to-follow instructions, making it a handy choice for DIY and professional use.
- SUITABLE FOR INTERIOR AND EXTERIOR USE – Ideal for showers, wet rooms and bathrooms, as well as balconies and partially covered exterior areas.
- TWO SIZES – Available in a standard size providing 4.5 sq.m coverage and a large size that provides coverage of 7.5 sq.m.
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8
Breathable Membrane Roofing Underlay - Professional Grade 120 GSM - Roll 4.92x164 ft (1.5x50m) - 3 Layer Vapor Permeable Roof Underlayment Covers 807 ft² (75 m²) - for Homes, Sheds & Pitched Roofs
NOVECRAFTO
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NOVECRAFTO
Breathable Membrane Roofing Underlay - Professional Grade 120 GSM - Roll 4.92x164 ft (1.5x50m) - 3 Layer Vapor Permeable Roof Underlayment Covers 807 ft² (75 m²) - for Homes, Sheds & Pitched Roofs
Why we love it
- Versatile for all roof types.
- Breathable for moisture management.
- Lightweight and easy to install.
Main Highlights
- ONE SOLUTION FOR EVERY ROOF – High-performance, breathable roofing membrane for residential homes, sheds, and more. Use under felt, tiles, metal sheets, or shingles. Works with both ventilated and fully sarked systems on pitched or sloped roofs, whether building new or upgrading.
- VAPOR PERMEABLE MOISTURE PROTECTION – Heavy Duty 3 layer roof membrane with a breathable film between two protective layers of polypropylene fleece, has strong resistance to moisture while allowing internal humidity to escape, EN 13859‑1 roof membrane.
- PROFESSIONAL GRADE - EASY HANDLING – Lightweight roof underlayment roll at only ~120 g/m², each roll measures 4.92 × 164 ft (1.5 × 50 m) and covers 807 ft² (75 m²). Hassle-free on-site handling for both DIY projects and professional installation - built with superior tear resistance for lasting performance.
- QUICK, WEATHERPROOF SEALING – Roof membrane waterproof installs fast with secure, watertight overlaps that block leaks and drafts. Designed for easy stapling or taping, this roof membrane underlay
- UV, RAIN & TEMPERATURE RESISTANCE – Withstands sun exposure for up to 4 months while providing W1‑rated water resistance for superior protection against rain and moisture. Performs reliably in extreme conditions, with a temperature range from –40 °C to +100 °C.
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9
Nassboards – Decoupling Membrane for Newly Laid Floors 30m² / 10m² / 5m² – Anti-Crack, Waterproof and Sound-Proof Plastic Ply Decoupling Membrane – Quick & Easy Laying (5m²)
Nassboards
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Nassboards
Nassboards – Decoupling Membrane for Newly Laid Floors 30m² / 10m² / 5m² – Anti-Crack, Waterproof and Sound-Proof Plastic Ply Decoupling Membrane – Quick & Easy Laying (5m²)
Why we love it
- Protects against floor cracking.
- Quick and easy installation.
- Versatile for various flooring types.
Main Highlights
- PROTECTIVE: Nassboards Decoupling Membrane helps to prevent newly laid tile floors from cracking if the substrate beneath them moves due to natural or environmental causes. This means you are less likely to have to deal with the cracking of your newly renovated floors
- QUICK & EASY: Nassboards Decoupling Membrane is now quicker and easier than ever to lay, it is easy-to-spread out, easy-to-handle, and easier-than-ever to use
- MULTI-USE: Nassboards Decoupling Membrane is suitable for: wood and concrete floors, underfloor heating, porcelain, stone or mosaic tile! No matter what your flooring type, this Decoupling Membrane is sure to keep all of your floors protected
- SUPPORTIVE: Nassboards Decoupling Membrane is ideal for bridging cracks, alleviating stress, and keeping your newly laid floors protected and supported throughout foundational shifts. Keep your newly laid floors extra supported with this Decoupling Membrane
- SOUNDPROOFING: Not only does this Decoupling Membrane absorb lateral movements, but it also aids in soundproofing, to absorb any unwanted noise. Kill two birds with one stone with Nassboards Decoupling Membrane keeping your floors protected and sound-proofed
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Nassboards Waterproof 5L Tanking Membrane for Wetrooms, Bathrooms, Kitchens and Waterproofing – Perfect for Wet Zones, Tiling Showers, Preventing Moisture – 5 Litre Waterproof Tanking Membrane
Nassboards
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Nassboards
Nassboards Waterproof 5L Tanking Membrane for Wetrooms, Bathrooms, Kitchens and Waterproofing – Perfect for Wet Zones, Tiling Showers, Preventing Moisture – 5 Litre Waterproof Tanking Membrane
Why we love it
- Premium waterproofing for wetrooms.
- Works on many surfaces.
- Quick drying within 24 hours.
Main Highlights
- PREMIUM WETROOM WATERPROOFING: Introducing the WSK Wet Room Waterproof Tanking Membrane, brought to you by Nassboards, the experts in Kitchen, Bathroom & Wetroom Waterproofing. This Waterproof Tanking Membrane provides you with the tool you need to waterproof both walls and floors prior to tiling showers, wet rooms, wet zones and other areas susceptible to water and excessive moisture. It forms a permanently flexible, watertight membrane that goes behind the tile so that water doesn’t
- APPLICABLE ON SO MANY SURFACES: This non-hazardous, solvent free membrane is great to use on the majority of common surfaces, such as Plasterboard, MDF, Plywood, Cement Boards, Blockwork, Concrete and Specialist Wet Room Boards. The membrane works effortlessly with most materials, and gives you peace of mind regardless of the composition of your bathroom or wetroom’s substrate
- JUST THE TUB: If you don’t need the kit, then just take the tub! Our Nassboards Tanking Membrane Container holds 5L, which is the same tub you’d receive if you were to purchase the Large size kit, which provides you with enough coatings you’ll need to waterproof an area measuring 8m². We’ve got everything you need to renovate your bathroom, kitchen or wetroom in a safe and stress-free way
- QUICK DRYING: When you purchase from Nassboards, you will receive a high quality Membrane that is easily applicable by brush. The material is non-hazardous and is solvent free, and dries quickly within 24 hours, so you can start tiling as soon as possible. This premium, professional membrane is a must have tool if you want to do it right
- NASSBOARDS CARE: We at Nassboards are as passionate as we are confident about the quality of our Wetroom Waterproofing Kit. We take a lot of care to ensure that we leave you a satisfied customer every step of the way. If at any point you are not happy with our product, contact us so that we can make it right
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