Structural waterproofing membranes are essential for protecting buildings from water ingress, particularly in below ground areas like basements, tunnels, and foundations. By implementing effective waterproofing solutions, we ensure your property remains water resistant and secure in all conditions.
Premcrete is a well established manufacturer of waterproofing membranes – in fact, the only manufacturer of pre-applied waterproofing membranes in the UK!
Waterproofing membranes can come in many forms, so we have broken down the details below to help…
Damp proofing membranes are vital for protecting buildings from moisture damage. These barriers prevent dampness from seeping into walls, floors, and foundations, ensuring the structural integrity and longevity of your property.
Here are Premcrete’s robust damp proofing membranes (DPMs) in our product portfolio.
 | Hydroprufe DPM High Performance Damp-Proof Membrane | HYDROPRUFE DPM is a high-performance damp-proof membrane which is manufactured from a blown film of extruded low-density polyethylene. It is available in a range of nominal thicknesses and is designed to provide an effective barrier to ground moisture. |
Damproofing |
 | Hydroprufe 6000 Flexible hydrocarbon resistant membrane | HYDROPRUFE 6000 is a high-performance high-density polythene membrane which is suitable for use on brownfield sites that require protection from dangerous contaminants and ground gases. HYDROPRUFE 6000 has outstanding chemical resistance and mechanical properties, making it suitable for use where high levels of total petroleum hydrocarbons are present. The membrane also provides protection from ground gases in accordance with BS 8485:2015 and ground moisture. HYDROPRUFE 6000 exhibits outstanding flexibility to provide ease of installation. |
Damproofing
Radon Gas & VOCs |
 | Hydroprufe 9000 Gas resistant damp-proof membrane | Hydroprufe 9000 is a virgin polyethelene reinforced gas membrane, incorporating an aluminium core, that provides an effective barrier to ground gases including methane, carbon dioxide and radon for the lifetime on the structure to which it has been installed. The polyester reinforcement component of the multi-layered membrane reduces the risk of tearing the membrane during the installation phase. Hydroprufe 9000 is suitable for welding using suitable hot air welding equipment or the laps may simply be taped jointed. |
Damproofing
Radon Gas |
 | Hydroprufe 300R Radon Membrane | Hydroprufe 300R is manufactured from a blend of polymer films that is suitable for use in the protection of buildings from the ingress of radon gas. Hydroprufe 300R also acts as a damp proof membrane but is not intended for use where there is a risk of hydrostatic pressure. It is installed in a similar way to a damp proof membrane, but with much greater attention paid to workmanship and detailing in order to achieve effective sealing at all locations. |
Damproofing
Radon |
Pre-applied waterproofing membranes are an essential component in modern construction. They are applied before the concrete is poured, creating a seamless barrier that integrates with the structure as it is built.
Uses include basements and foundations, tunnels and subways, retaining walls, and lift shafts.
Premcrete examples include…
 | Maxiprufe Plus High Performance Waterproof Membrane | Maxiprufe Plus is a composite pre-applied waterproof membrane utilizing the very latest PREMCRETE APANTM technology which produces an enhanced active bond to fresh concrete to become an internal part of the structure to which it has been applied. The active pre-applied nano-seal technology provides a secondary waterproof element for unique hybrid protection. |
Waterproofing |
 | Combi-Seal Gas-resistant waterproof membrane | Combi-Seal is a cross-laminated, lightweight, pre-applied membrane which will resist ground gases and water. The membrane utilises PREMCRETE APAN™ technology to produce a membrane which will effectively resist water pressure and gases from within the ground. The polyethene component is reinforced with an aluminium core to restrict gas vapour transmission to less than 40ml/day/M² in accordance with BS 8485:2015 + A1:2019. |
Waterproofing
Gas |
 | Combi-Seal Plus VOC-resistant waterproof membrane | COMBI-SEAL PLUS comprises of a high-density polyethylene membrane (HDPE) and non-woven, geotextile, cross-laminated to produce a durable, pre-applied membrane which will resist hydrocarbons, VOCs, ground gases and water. The membrane utilises PREMCRETE APAN technology to produce a membrane which will effectively resist water pressure, gases and VOCs from within the ground. |
Waterproofing
Gas Gas & VOCs |
Self-adhesive waterproofing membranes are a versatile and efficient solution for protecting structures from water ingress.
These membranes come with pre-applied adhesive layers, making installation quick and straightforward, without the need for additional bonding agents.
 | Hydroprufe 3000 Cold-applied waterproof membrane | HYDROPRUFE 3000 is a high performance cold applied waterproof membrane, manufactured from tough cross-orientated HDPE film to a layer of rubber adhesive. The applied film has excellent tear resistance and dimensional stability making it suitable for application to concrete and masonry structures where resistance to ground water is required. |
Waterproofing |
 | Hydroprufe 8000 High performance cold applied waterproof and gas resistant membrane | HYDROPRUFE 8000 is a high performance, cold applied waterproof and gas resistant self-adhesive membrane manufactured from an aluminium/polyethylene laminate coated on one surface with a layer of polymer modified Bitumen adhesive. It is suitable for application to masonry concrete and other substrates to provide an effective barrier to both water and ground gases. |
Waterproofing
Gas Gas & VOCs |
Cementitious waterproofing membranes are a reliable and durable solution for protecting structures from water ingress. These membranes are typically applied as a slurry or coating, forming a seamless barrier that adheres strongly to concrete and masonry surfaces.
 | Hydroseal FX Two-part cementitious hybrid-polymer coating | Hydroseal FX is a two-component cementitious hybrid -polymer coating, which exhibits excellent waterproofing and protective properties to both concrete and steel substrates.
Hydroseal FX cures to form a highly durable but flexible alkaline coating for protection from water, chlorides and ground gases. Hydroseal FX offers a degree of chemical resistance, making it particularly suitable for resistance to sulphate contamination. |
Waterproofing |
 | Hydroseal PX Waterproof slurry coating | HYDROSEAL PX is a cementitious waterproof slurry coating, for application to masonry and concrete substrates. Its unique composition produces insoluble crystals which effectively seal the micro-pores and capillaries to prevent the passage of water. It is a single component product which is just mixed with clean water and is easily applied by brush, trowel or spray equipment. |
Waterproofing |
 | Hydrorend High performance waterproof render | HYDROREND is a single component polymer enhanced fibre reinforced render mortar. It is suitable for the application to concrete and masonry backgrounds to provide a fairfaced render which will effectively resist both negative and positive orientation hydrostatic water pressure. It´s unique formulation ensures that the mortar will resist up to 10 bar water pressure. |
Waterproofing |
Liquid waterproofing membranes are a flexible and effective solution for protecting structures from water ingress. These membranes are applied as a liquid coating, which cures to form a seamless, durable barrier that adheres to a variety of surfaces.
 | Hydroprufe LG Liquid gas-proof coating | Hydroprufe LG is an epoxy-based liquid gas membrane which is suitable for application to porous substrates to provide resistance to ground gases including methane and carbon dioxide. It is supplied as a two-component pack, consisting of a base component and a curing agent suitable for mixing on-site. |
Waterproofing
Gas Gas & VOCs |
 | Epoflex MMA Two-component rapid-cure flexible waterproof membrane | EPOFLEX MMA is two -component rapid-cure flexible waterproof membrane. The applied membrane provides an extremely durable finish which retains a degree of elasticity for the lifetime of the structure. It is highly impact resistant, making it suitable for areas which are to be trafficked. It remains completely impervious to water and when subjected to normal service condition it will provide an effective barrier to water and moisture for the life span of the structure. A slip resistant finish can be achieved by incorporating a quartz aggregate into the membrane. |
Waterproofing
Gas Gas & VOCs |
 | Hydrogard PUA Elastomeric 100% Pure Polyurea Waterproof Coating | Hydrogard PUA, 100% pure, polyurea coating is applied as both a waterproof and protective coating for use in areas subject to structural movement. The coating comprises of two liquid components; Isocyanates and amines which are highly reactive and designed to be mixed and spray applied to a wide variety of substrates. Hydrogard PUA provides excellent elasticity and is an aromatic high density polyurea. |
Waterproofing |
Drainage membranes are a crucial component in managing water around structures, ensuring effective drainage and preventing water accumulation that can lead to structural damage.
These membranes are designed to channel water away from foundations and other critical areas, maintaining the integrity of the building.
 | Hydroflow HP8 Cavity Drainage membrane for internal walls | HYDROFLOW HP is a cuspated HDPE drainage membrane suitable for installation on internal walls and floors. It is designed to provide a free-draining void for the collection and control of water that permeates through a concrete or masonry sub-structure. The void created by the cuspated sheet allows the water to free flow to a drainage channel or sump. The 8mm thick membrane is typically used for application to vertical substrates or for the control of light water ingress. |
Waterproofing |
 | Hydroflow HP20 Cavity Drainage membrane for internal floors | HYDROFLOW HP is a cuspated HDPE drainage membrane suitable for installation on internal walls and floors. It is designed to provide a free-draining void for the collection and control of water that permeates through a concrete or masonry sub-structure. The void created by the cuspated sheet allows the water to free flow to a drainage channel or sump. The 20mm thick membrane is typically used for application to floors and horizontal substrates, where increased drainage capability is required. |
Waterproofing |
 | Hydroflow HM25 Geocomposite Drainage Membrane | HYDROFLOW HM is a high-performance HDPE, cuspated drainage membrane incorporating a non-woven geotextile bonded to the outer face of the cuspates to produce a geocomposite drainage membrane. This is designed to provide an effective drainage layer, externally to water resisting structures. The membrane exhibits a good load resistance which ensures that the free draining void is maintained for the lifetime of the structure. HYDROFLOW HM offers excellent chemical resistance to alkalis and organic gases making it suitable for use in a variety of ground conditions. |
Waterproofing |
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