This is best done by taping a piece of foil to the inside of the foundation wall. It can be used in both extensive and intensive green roof systems on houses, sheds, garages and larger commercial projects. SuperSeal specializes in advanced Waterproofing Membrane solutions, offering durable, eco-friendly products with up to 40 years warranty. Fleece Tape for Damp Proof Membranes. First, remove old mortar to at least 10mm depth. PermaSEAL 8 Plaster Mesh is one of the toughest and thickest wall memrbanes on the market today. Specialties: Whether you’re looking for a roofing service provider for your commercial building or residential home, if you’re in need of an entirely new roofing system, or repair Perma-seal Roofing is one of the largest and most respected roofing service providers in The Chicago land area Licensed and insured, Perma-seal Roofing has a dedicated Repair and Service Division of the company. If you require further information about internal damp proofing and tanking slurries please do not hesitate to contact one of our technical team on 0117 982 3282. PermaSEAL 3 Mesh Membrane is a high quality mesh faced cavity drain membrane for internal damp proofing and for application onto substrates that are contaminated with hygroscopic salts. PermaSEAL Tanking Slurry in grey is specially designed for waterproofing basements and cellars. Sat: 7AM-12PM. 14 - $13. The standard suggests consideration be given to the use of dual systems. Whilst this is still damp, apply one coat of tanking slurry 100mm up the wall and 100mm across the floor. PermaSEAL Membranes. 1 x 10m² (1m x 10m) PermaSEAL PRO 8 Green Roof Drainage Membrane. £20. Perma Seal Basement Systems 152 Photos 352 Reviews 412 Rockwell Ct Burr Ridge Il Yelp. 5 to 8m² per 20 kg unit/ coat. 1 x 10m² (1m x 10m) PermaSEAL PRO 8 Green Roof Drainage Membrane. PermaSEAL damp proof membrane jointing tape is a black Butyl tape used for joining PermaSEAL membranes along the flange where they overlap. Bamboo Root Control System. PermaSEAL® waterproofing membranes can also be used in conjunction with other external waterproofing products. PermaSEAL 3 Mesh is fitted to the wall with the studs to the wall and the flat meshed surface facing inwards towards the applicator. Sedum roof trays, also known collectively as a modular green roof, are interlocking trays that can be combined to cover a roof of almost any size. Installation of exterior waterproofing membranes, insulation,. 70 per square foot at. Permaseal is a product that can be used to seal concrete, brick, and masonry. Secure the PermaSEAL 8 Geodrain to the wall with PermaSEAL Quick Plugs at the top of the sheet at approximately 500mm spacings. 5kg to 3kg/m²/coat 6. Every joint between gas membranes needs to be made gas tight in this way with the double-sided tape. PermaSEAL 8 Geodrain is a twin sheet 8mm stud cavity drain membrane for external waterproofing. 6kg/m² per coat (2 coats required). Permaseal Damp Proof Paint. Rating: 100%. It is available in 10 metre and 20 metre lengths, with a standard 100mm width and 1mm thickness. Find membranes, root barriers, and accessories. M. It should require around 4-5 heavy coats to achieve a 60-80 mil (1. This is best done by taping a piece of foil to the inside of the foundation wall. 1 x Economy DPC injection Unit with lance. Estimating the cost to waterproof a basement on a square foot base, most homeowners pay $3. 200 ml/m² depending on the porosity of the substrate. PermaSEAL 8 Green Roof Membrane – a drainage layer suitable for extensive and intensive green roofs and horizontal drainage below parking decks and walkways. This is one of the advantages of EDPM roofing, the reduced installation cost. Use perforated pipe for the land drain or french drain. The stud depth of 8mm provides versatile use as both a wall and floor applied membrane. Sun: Closed. Downloads Related Products. Homeowners typically spend an average of $4,970, or between $2,316 and $7,624, to fully waterproof a basement, crawl space, or foundation. ft. French drain. Wed: 7AM-6PM. DPM Handy Pack - 300mu 1200 gauge - 4m x 5m Permagard. STOP RISING DAMPNESS IN ITS TRACKS. If you need to lay floor tile tiling, use the 3 mm mesh-faced damp-proof membrane. 5mm and 2mm thickness per coat. The hygroscopic salts that are contained in the surface attract the damp in the air to the surface giving the appearance of a darker, damp patch. Our PermaSEAL Mesh membranes have a high-quality meshed surface which provides an excellent ‘key’ for lime mortars, renders, plasters or dabbed plasterboard. These are the most recent introduction among innovative basement waterproofing membranes. PermaSEAL 3 Mesh membrane is the ideal product for isolating salt contaminated surfaces. Pro Off-white Flat Solid Latex Mildew Resistant Mold Resistant Waterproofer (5-Gallon) Model # 24715. Follow the link if you are looking for a waterproofing membrane for exterior walls . The term “basement waterproofing” refers to any number of techniques homeowners can use to keep water away from their foundation and remove any water or moisture that does get inside. These systems are designed to wrap the entire outside of the home with a durable membrane and water diversion system. 500. 25 Ex VAT. black basement waterproofing paint. The cost to waterproof a basement is $6 to $15 per square foot. to 12:30 P. Our ground-breaking Sika Watertight Concrete System is specifically designed for water resistance underground. 30 with Mail-In Rebate. Zinsser 5 gal. This makes it ideal for green areas designed to do without irrigation for extended periods. Clean First. Work is to be performed in 2024. The membrane can support a 65 mm screed or an insulated floating floor. PermaSEAL 8 Geodrain external waterproofing membrane allows water to freely drain through the filter fabric into the cavity. It provides protection in case of water accumulation. Liquid waterproofing membrane is easy to apply. We recommend using Cob Membrane Plugs with PermaSEAL rope for the best seal. It is also used to seal fixings and for general use around services or stop ends. Permagard is a leading manufacturer and supplier of basement waterproofing products, damp proofing membranes, and structural repair products. sump chamber. Fit the membrane as level as possible - best results are achievedSelecting the right Waterproofing Solutions for your project, ensuring for overall success. PM Profi Band - Membrane Adhesive Tape ; The confidence. Permaseal Quick Plugs are used to secure Permaseal System membranes to brick, concrete, stone and other masonry surfaces. The membrane can be installed straight after the insertion of a new damp proof course. £49. Ames water-based block & wall super elastomeric liquid rubber. PermaSEAL Self-Adhesive Tanking Membrane is designed to protect below-ground structures from water ingress. The PermaSEAL PRO 20P Green Roof Drainage & Storage Membrane is specially designed with a deep stud - this aids drainage capabilities and also stores more water to help the green roof grow. Permaseal Damp Proof Paint is a high performance styrene butadiene based, single pack, liquid applied waterproofing and vapour proofing membrane. ) wide, by 914-cm (30-in. Its adhesion is impeccable and the edges are completely seamless, preventing water from seeping in. For older floors with a small amount of moisture detected (less than about 3-lbs. (15m² for a single coat per 25kg unit or 7. The membrane reflects UV rays, which minimizes. Open Mon - Fri 9am - 5pm. PermaSEAL Membranes . 1 x 20m² (4m x 5m) PermaSEAL Extensive Root Barrier Membrane. Permaseal Damp Proof Paint. In layman’s terms, it is liquid rubber waterproof product. The stud depth of 8mm provides versatile use as both a wall and floor applied membrane. This is important to maintaining a successful and healthy. Read 19 Reviews. The drainage channel features an upstand for use in front of the cavity drain wall membrane. 52 per square foot. As part of the system you have a sump chamber and a sump pump. This is often misdiagnosed as. We recommend using Cob Membrane Plugs with PermaSEAL rope for the best seal. For help and advice on which damp proof membrane to use to get the job done please feel free to contact us on 0117 982 3282. Their effectiveness has been proven time and again in countless projects. PermaSEAL 3 Mesh Membrane is a high quality mesh faced cavity drain membrane for internal damp proofing and for application onto substrates that are contaminated with hygroscopic salts. Its' flexibility—even in extreme temperatures—allows a tight, impermeable fit that adapts to any architectural design, from multiple. This is often misdiagnosed as. The PermaSEAL Basement Sump and Pump System is designed for the removal of ground water from within basements, light wells and water collected from cavity drain membrane systems. The protection provided by these waterproofing products, used in conjunction with CCW MiraDRAIN provides a complete waterproofing system second to none. PermaSEAL Membranes . Our range of PermaSEAL® membranes are highly effective damp proofing membranes designed to damp proof walls and eliminate dampness permanently. If you have any questions around neutralising salts or damp proofing in general our experts are on hand to provide advice. These liners are completely waterproof and will not support the growth of mold, unlike most common building materials. Protect your home from rain & water damage with our high strength Masonry Facade Cream. 5") brick work or 25 linear metres of double skin (220mm, 9") brick work. Let it sit for several days, then remove the foil to see if the wall or room side of the foil is wet. Fix the membrane to the wall with the Perma-Seal Plaster Plug with a rubber grommet fitted to all substrates except to slightly friable mortar substrate, when the PermaSEAL Cob Plug should be used. See All Photos. t is common practice however to install a drainage and protection membrane that will quickly alleviate water pressure from the surface of the primary waterproofing, whilst also protecting it from damage. Newton HydroBond 410 Geodrain should be fixed in the top row of studs at 250mm centres. They are supplied with a rubber grommet so that when the plug is fixed into the substrate the grommet creates a compression seal against the membrane to stop any water ingress. Foundation repair, basement waterproofing, crawl space repair, concrete raising 6 states Manufacturer's and performance warranty: Best Exclusive Technology Olshan Foundation Solutions: Foundation repair, exterior water management, crawl space repair, wall and concrete repairs: 19 states Lifetime transferable warranty: Best Warranty. PermaSEAL 3 Mesh Membrane is a high quality meshed membrane, designed for damp proofing walls internally above ground. Place footing drain 200mm below basement floor level. Foam underlay – one of the most versatile types of carpet underlay, made of PU (polyurethane) foam and available in an assortment of thicknesses and densities. Our technical staff are able to advise you on all aspects of damp proofing and structural waterproofing, for any job large or small. Its unique dimple design and Air-Gap Technology provide effectiv. Available in black. Foundation crack sealing. 00. Dilution: Mix one liquid component with one powder component. ft. Clear Wet Look High Gloss Transparent Latex Sealer (5-Gallon) Model # 024. This reduces the risk of harmful interstitial condensation by ensuring that any moisture within the. The mesh provides an excellent key for a range of finishes. x 76-1/5 ft. Apply a Funcosil Bl Primer and allow to dry fully. Country of Manufacture: Germany. It provides a reliable barrier against moisture, protecting your walls from potential damage. The stud depth of 3mm provides a suitable air gap for use as a wall and floor applied membrane. Damp Proof Paint. Itactsas a barrier against water, alkalis, saline solutions and organic acids and is resistant against bacteria and fungi and many other. ft. Signs things are wrong with your green roof . The 60mm deep perforated cavities provide a water storage capacity of approx 20 l/m². Liquid waterproofing membrane is easy to apply. 5kg/m²/coat 8 to 10m² per 20 kg unit/ coat. In June 2023 the cost to Waterproof a Basement starts at $11. Formulated to provide a uniform finish on a variety of industrial. 1. It is designed for connecting and sealing all PermaSEAL mesh membranes together where they join or overlap. This can be a liquid-applied coating or a peel-and-stick membrane. The watertight solution engineered for basements. Ensure that both membranes remain dry and free from dust and dirt. Every basement waterproofing job is different and the cost will be determined by the size of the property, which basement waterproofing. The paint’s consistency is similar to thick emulsion paint, boasting of several properties including. PermaSEAL Geodrain Capping Strip is also available for sealing the top of the membrane to the structure. 50 and $0. These fully bonded systems consist of a surface-modified, highly flexible polyolefin membrane. At Permagard, we advise against using a mesh membrane for vault ceilings due to the number of additional fixings required and the additional weight of wet. Which is integrally laminated to a blue, high-density polyethylene film. PermaSEAL Fleece Overstrip is a grey geo textile backed one-sided tape. It is a fast, economical way to cover ugly walls, stop water vapor from permeating. Once dry, apply Colour Flex with a roller or brush. Monday thru Friday, or by calling or emailing the Town. between the PermaSEAL Brick Plug or PermaSEAL Quick Plug and the membrane PermaSEAL Corner Strip and PermaSEAL Over Tape - a self-adhesive membrane strip for sealing joints in the membrane and for use around services, penetrations and edge details, and between wall and floor membranes PermaSEAL Drainage Channel, Floordrain - forNewton Butyl Rope. This type of repair entails excavating the entire. For PermaSEAL floor membranes, follow this guidance: It is essential that there are no undulating surfaces or depressions in the floor. When temperatures are low, we recommend storing the material in a warmer environment. 5kg/m2 Mineral Coated APP Bitumen Membrane (Shelterbit Mineral Membrane) A 4. For that take a look at How to repair cracks in walls. The first step in applying this material is to inspect the surface of the walls and fill any large voids with. View all External Waterproofing and Drainage Membranes. Whether you’re building from the ground up or redoing your EPDM or TPO* roof, PermaSeal™ is your #1 choice. They are suitable for securing PermaSEAL membranes to a range of substrates internally, above and below ground. Excellent adhesion to aluminum, vinyl, glass, wood, concrete and most clean materials. Inject the cream into the boreholes using a low pressure sprayer or cartridge gun. Manufactured from premium HDPE, it provides a drainage layer and filtering layer all in one membrane. Colour: Black. . £51. The product is supplied ready to use straight from the bucket. Our Liquid DPM paint that can be applied above and below screeds to provide an elastic damp proof membrane for floors. Option 2 – Tanking Membrane, Coating, or Slurry to hold back the groundwater from entering the building. 7m. Permaseal can be purchased at most hardware stores and home improvement stores. PermaSEAL 1 Floor Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years (DIN: 9001:2000). PermaSEAL 8 Clear is a translucent high-density polyethylene (HDPE) membrane for damp proofing and waterproofing walls, floors and ceilings in new or existing buildings. We've worked with and installed everything!Loose-Laid Flooring Membranes. Whilst this is still damp, apply one coat of tanking slurry 100mm up the wall and 100mm across the floor. 82. Each of our trays is made from recycled materials and measures 460mm x 495mm x 80mm. Its adhesion is impeccable and the edges are completely. Protect your home from rain & water damage with our high strength Masonry Facade Cream. $2,250. 2 coats always required. Permaflex is a liquid polyurethane waterproofing coating. Tue: 7AM-6PM. Permagard - Providing Solutions. There are a wide variety of foundation waterproofing methods you can use, with the best one usually depending on the underlying issue and how. PermaSEAL 8 Geodrain is designed to relieve water pressure that bares against the structure by allowing water through the geotextile fabric layer into the cavity created by the dimpled membrane where it freely drains down to the land drain where it is taken away. Labor alone makes up 50% to 75% of the total price. This Old House general contractor Tom Silva solves soggy basement problems and shows host Kevin O'Connor how to waterproof a basement. PermaSEAL 1 Floor Membrane is inert and is highly resistant to water, alkalis, hydro-carbons, saline solutions PermaSEAL Self-Adhesive Tanking Membrane should only be installed in dry weather and at temperatures between 5 °C to 30 °C. PermaSEAL Crystalline Cementitious Tanking is easy to apply with a brush or spray. It is designed to be installed above decks and flat roofs. For more information on how a cavity drainage system works, check out our comprehensive guide. Newton Membranes and PermaSEAL Waterproofing Membranes come in a. Kiesol C is the highest strength damp proofing cream in the world with an active ingredient (silane) level of 80% which is more than any other damp proofing cream on the market. 5 Litres of Kiesol C will cover approximately 50 linear metres of single skin (110mm, 4. The double cuspated design provides two layers of drainage and prevents water getting. The stud depth of 3mm provides a suitable air gap for use as a wall applied membrane. The first option is to install a meshed damp proof membrane to the chimney breast. On floors with moisture levels higher than 3-lbs. Permagard 30 Years of Basement Waterproofing Experience. PermaSEAL 20 Floor membrane is designed mainly for use as a floor cavity drainage membrane. The spacing width for vertical and horizontal plug fixings differs so make sure to follow the instructions as specified in your membrane kit. /1,000-sq. Ideal for masonry, concrete, ICF, PWF foundations. Liquid epoxy DPMs are ideal for concrete floors, such as garages, where the original damp proof membrane is missing or has broken down. Interior basement waterproofing costs $4,500 to $10,000 on average. Now apply pressure to the membrane in order to join the two membranes together. It can also be used as the floor membrane as part of the Perma-Seal Waterproof System when a survey has determined that no risk of water entering through the body of the slab exists. Lining of storage tanks for potable water. The other render system is a more traditional, tried-and-tested method: First prime the wall with Permagard Salt Inhibitor. (16 products) Damp-proof membrane is used to protect buildings from moisture by creating a damp resistant barrier. 14 - $13. About. The hygroscopic salts that are contained in the surface attract the damp in the air to the surface giving the appearance of a darker, damp patch. Polymer-based products last for the lifetime of the building and are not affected by soil pH. The amount you spend depends on a number of factors, including: Size of the basement: Nevill estimates costs ranging from $3. This Kiesol C DPC injection cream kit will cover approximately 30 linear metres of 100mm (4. Our range of PermaSEAL® membranes are highly effective damp proofing membranes designed to damp proof walls and eliminate dampness permanently. Use PermaSeal™ liquid membrane to brush or roll your entire roof for a completely fail-proof membrane. The best way to waterproof basement walls on a DIY basis is to fill cracks with hydraulic cement, and apply a sealant designed for waterproofing basement walls, plus use silicone masonry caulk around. for pricing and availability. Easy and fast installation to foundation walls. 0. 1000g/m² Composition 100% Virgin HDPE Stud height Approx. PermaSEAL 1 Floor Membrane is inert and is highly resistant to water, alkalis, hydro-carbons, saline solutionsPermaSEAL Self-Adhesive Tanking Membrane should only be installed in dry weather and at temperatures between 5 °C to 30 °C. It can support a wide variety of vegetation. PermaSEAL PRO 8 Green Roof is a high quality green roof membrane, ideal for creating an attractive and healthy green roof. With a height of 1. It should require around 4-5 heavy coats to achieve a 60-80 mil (1. Apply a coat of PermaSEAL Tanking Slurry to the area 100mm up the wall and 100mm across the floor covering the joint. With over 30 years of experience, Permagard are happy to offer free technical advice. Basement waterproofing cost by size - Chart. t is common practice however to install a drainage and protection membrane that will quickly alleviate water pressure from the surface of the primary waterproofing, whilst also protecting it from damage. First Line of Defense. The stud depth of 8mm provides a suitable air gap for use as a wall applied membrane. Forms a flexible. On-site conditions always vary, presenting challenges on the job. The Geodrain membrane is used externally below ground in Type C waterproofing. Polymer-based products last for the lifetime of the building and are not affected by soil pH. The filter fabric allows water to pass into the cavity created by the. PermaSEAL 3 Mesh is an inert. At least three coats of Colour Flex are required to sufficiently bridge cracks. Realign the top and side edges of the membrane to the ceiling and edge of the wall, ensuring that the membrane is hanging vertically (a plumb bob can be used to verify this) then drill another hole, again 2” from the ceiling and as close to the edge of the adjoining wall as possible. The plaster membrane fixing plugs are designed with a ribbed shaft, giving them maximum grip in a wide. Model # HEWP200937 Store SKU # 1000403398. £112. It can support a wide variety of vegetation. Tremco's technical field sales representatives can work with installers and applicators to provide an appropriate solution. SikaProof®, a fully-bonded TPO membrane system, offers customers high waterproofing safety and installation efficiency and is typically used for basements or below-grade areas. Depending on the specific water problem and where the water is coming from, exterior basement waterproofing may be the best bet to solve your water intrusion problem. £159. 86 l/s m Roll length 10, 20m Roll width 1m, 1. The consistency is similar to that of thick emulsion paint, the standard product being supplied as a black or. Basement Membranes. Smooth surface: 2kg to 2. £80. 00 Ex VAT. SUPERSEAL Dimpled Membrane is a permanent waterproofing and drainage membrane that can be installed on any type of foundation, used as a subfloor, under floor slabs, and. Suitable membranes include PermaSEAL 3 Mesh, Newton 803 Newtonite or Platon PB2 Mesh. The heart of the PermaSeal Roofing System is a high-strength, flexible, white, thermoplastic membrane. The stud depth of 3mm provides a suitable air gap for use as a wall applied membrane. Basement Waterproofing Solutions We offer a wide variety of basement waterproofing membrane products, including Bentonite, and Liquid or Sheet Waterproofing membrane solutions. Easy Handling & Installation. Damp proof membrane. Newton NewSeal 408 DeckDrain membrane is a highly effective deck and flat roof drainage layer. The BITUTHENE® waterproofing system is the most trusted post-applied waterproofing membrane. PermaSEAL Membranes . Features. However, some may add a fee for the survey, which will be around £100. It is easy to apply and maintain. With our certified professionals and personalized approach, you can trust us to create a dry and secure environment for your property. Reviews. These surfaces can often appear damp in periods of high humidity. Our basement membranes can be used on walls, floors, vaults and tunnels with the minimal amount of surface preparation required. A geodrain membrane, such as PermaSEAL 8 Geodrain Membrane 40m². PermaSEAL DPM Tape is manufactured from butyl, so it is important not to stretch the tape when unrolling it or applying it. 70 per sq. Up to 25m² per 5 litre unit. Apply a Funcosil Bl Primer and allow to dry fully. Elastomeric Waterproofing Membrane. For example, Type A plus Type B protection where the assessed risks are deemed to be. Product details: Waterproofing refers to treating a surface to prevent the passage of water under hydrostatic pressure conditions. In layman’s terms, it is liquid rubber waterproof product. The composite weight of the material is up to 1. DeckDrain is double cuspated - which means it has drainage studs both on the upper and lower surfaces. PermaSEAL 8 Geodrain is installed and sealed using PermaSEAL Quick Plugs and PermaSEAL Tape for the joints. White cream, dries clear leaves the surface as it was prior to treatment (after full cure). Using our years of experience and taking into consideration the needs of our customers, the PermaSEAL range has been designed to meet drainage capacity requirements below ground and space requirements above. To estimate costs for your project: 1. Waterbourne Dry Fall Black Coating. Permaseal Basement Sump And Dual Pump System 860 00. It can be installed into either 10mm or 11 mm holes depending on the substrate. By allowing water to pass through the geotextile fabric layer and into the cavity created by the 11mm dimpled membrane, depressurisation and fast drainage is achieved. Green Roof Kit contains: Our green roof kit has been carefully put together to contain all the core components to create the foundations of a successful living roof. This is often misdiagnosed as. For example, if you’re building solid 9" brick or stone walls, these can be rendered or take dot and dab plasterboard for internal finishes when the membrane is applied. EPDM roofing membrane is very lightweight, so the roof deck will not need any. PermaSEAL Overtape is a black PVC backed one-sided tape which is used for connecting and sealing the non-mesh PermaSEAL membranes together where they join or overlap. PermaSEAL 3 Mesh Membrane is a high quality meshed membrane, designed for damp proofing walls internally above ground. Alkalines in soils and concrete may cause some roll on or spray on coatings to dissipate over a few years into the soil. Remove the protective paper from the Double Sided Tape. installed. 🎬 Watch this: shows us his favourite method for damp proofing a basement or cellar. Apply next coat when dry to touch and nothing is wet underneath; tacky is okay. Option 3 – A combination of the two for maximum protection. PermaSEAL PRO 40P is an intensive green roof membrane with impressive water storage capacity and drainage capabilities. Waterproof Membrane and Conditioner is a flexible, pre-formed membrane designed for foundation walls, tunnels, earth-sheltered structures. Designed to work against bamboo. Dimple mat, or dimple board, is a product that seems to fall somewhere in between simple asphaltic dampproofing and a full-on waterproofing membrane. Most homeowners pay an average of $4,500 to $4,600 to waterproof their basements. PermaSEAL 3 Mesh is an inert product. £36. Leave the cream to revert to its liquid phase and penetrate the masonry surrounding the hole. Installation guide for our cavity 'Air gap' waterproofing membrane. PermaSEAL 3 Mesh membrane is the ideal product for isolating salt contaminated surfaces. The low profile stud depth of just 3mm makes it versatile, suitable for use as both a wall and floor-applied membrane. Above is a job from start to finish showing the installation of a physical Damp Proof Membrane. It features a high quality geotextile filter fabric, thermally welded to the studded face. See All Photos. The heart of the PermaSeal Roofing System is the membrane. ADD TO CART. 50 per square foot. Permagard has a large range of damp proof membranes, DPMs, and associated fixings. Basic. PermaSEAL 3 Mesh is a high quality, high density polyethylene (HPDE) membrane suitable for use in damp proofing structures above ground level. Growers Green Roof Kit contains: Our green roof kit has been carefully put together to contain all you need to successfully grow a living roof. 5m² for two coats). PermaSEAL 8 Geodrain membrane; PermaSEAL 20 Geodrain membrane; External primary waterproofing products. Stretching can lead to creases being caused in the membrane as the tape reverts to its manufactured size. These systems manage water entering the property and safely remove it. It is the most effective form of basement waterproofing. Produced from Recycled Material. With a height of 1. It is a water-based sealer that is designed to resist staining and fading. The membrane is specifically designed to be self-adhered to a prepared substrate providing a high-performance waterproofing barrier.