Cavity drain membranes
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Cavity drain membranes for structural waterproofing systems incorporating cavity drains. Find the best product for your project here.

Delta fire-retardant, Type C waterproofing
Delta’s fire-retardant MS 500 membrane gives a unique opportunity to the structural waterproofing sector for Type C systems to be used in reducing the spread of fire, or where installation has not previously been possible for fire safety reasons. Delta MS 500 Fire offers a B-S2, d0 Euroclass fire rating (EN 13501-1:2018) whilst maintaining its- PRODUCT
Delta Membrane Systems
Delta MS 500 - 8mm cavity drain membrane
DELTA MS 500 - 8mm cavity drain membrane. Type C Drained Protection. BBA approved. Supplied in 2.4 / 2.0 x 20m rolls
NewSeal 408 DeckDrain - Drainage Membrane for Decks & Flat Roofs
NewSeal 408 DeckDrain is a drainage membrane for decks and flat roofs. It is double cuspated, has drainage studs to the upper and lower surfaces, and incorporates a polypropylene geotextile filter layer, bonded to a water-impermeable HDPE (High-Density Polyethylene) core. The double cuspated design gives drainage two layers: firstly, allowing for
Delta MS Drain (Geotextile external drainage layer)
MS Drain serves as a drainage layer with fused-on geotextile. Sheet features a high compressive strength of c. 500kN/m² as well as more than 8,900 dimples/m². Featuring a contact area four times greater than that of conventional dimpled sheets allowing for greater distribution of pressure on the waterproofing. Fused-on hydrophilic geotextile- PRODUCT
Delta Membrane Systems
Delta FlexiDri - plastic watertight wall fixing plugs for membranes
Delta FlexiDri patented watertight fixing plugs have an expandable design and a self-sealing grommet, used for securely fixing membranes to substrates without extra sealing rope. Each plug has a central watertight pin that expands for a firm grip and allows for the installation of wall ties or dry lining systems: expandable watertight fixing plug
Delta Plaster Lath - 8mm cavity meshed membrane
The Delta Plaster Lath high performance polyethylene meshed membrane is used for above and below ground waterproofing and damp-proofing internal and external walls, vaulted ceilings. It can be used in new constructions or in existing buildings over a contaminated or damp background. The membrane is extruded into a series of studs which create a- PRODUCT
Delta Membrane Systems
Delta PT - damp proof & waterproofing cavity membranes
Delta PT is a high-performance polyethylene membrane that has been specially designed with damp control in mind. It is used to insulates and isolate damp and contaminated walls, vaults, and basements. Delta PT is manufactured with 8mm extruded studs that create a continuous air gap. This results in a watertight, temperature and chemical-resistant- PRODUCT
Delta Membrane Systems
Delta MS 500 Fire - fire-retardant Type C cavity drain membrane
Delta MS 500 Fire Retardant is an 8mm-thick studded Type C cavity drainage membrane that has been manufactured with DELTASAFE, an innovative fire-retardant property which enables the product to achieve a Euroclass rating of B-S2, d0 in accordance with EN 13501-1:2018. This fire-retardant high-density polyethylene (HDPE) membrane has an 8mm- PRODUCT
Delta Membrane Systems
Delta MS 20 - 20mm cavity drain membrane for floors and walls
Delta MS 20 is an HDPE, dimpled membrane with 20mm studs designed as a seepage layer for damp-proofing applications. Delta® MS 20 is used to waterproof floors, walls and vaulted ceilings where high drainage capacities are required in both above and below ground applications. Supplied in 2m x 20m rolls, DELTA® MS 20 can be applied as horizontal or
Delta Plaster Lath - 7mm meshed damp proofing membrane
Delta Plaster Lath is an easy to use 7mm meshed damp proofing membrane system which eliminates dampness, the effects of salts and contaminated backgrounds from walls. The meshed key surface provides a key for render, plaster, or dab fixing plasterboard. Delta Plaster Lath's dimpled design creates an air gap, which insulates and allows for- PRODUCT
Delta Membrane Systems
Delta Type C cavity drainage waterproofing systems
Delta's Type C cavity drainage waterproofing system comprises a cavity drain membrane, drainage system, package pump and control system. It is a maintainable basement waterproofing solution for new-build basements, refurbishment and retrofit projects. Type C waterproofing is defined as “drained protection”, where the structure itself provides- PRODUCT
Delta Membrane Systems
CDM 508 - 8mm cavity drain membrane for basements
Newton CDM 508 is a BBA-certified, high-quality, 8mm cavity drain waterproofing membrane. It is designed for use within the Newton CDM System for internally applied waterproofing that includes drainage and pumping systems. CDM 508 is suitable for waterproofing earth retained walls and vaulted soffits and floors. It is guaranteed against
Delta MS - high dimple density membranes
Delta MS high dimple density membranes are made of high density polyethylene. They have a high compressive strength and have more than 1800 dimples per metre squared for efficient pressure distribution and low point loads, even on perimeter insulation. Typical applications include sub-base coursing under concrete floor slabs, foundation wall- PRODUCT
Delta Membrane Systems
RIW R20 is an internal cavity drainage membrane system used to collect water entering basements and sub-structures and channel it to a sump or collection point for disposal. It is used in particular where site conditions or structural design makes it difficult or impossible to use traditional tanking methods. A 1mm thick high density polyethylene
RIW Cavity Drain R7 is an internal cavity drainage membrane system which collects water entering basements and sub-structures and channels it to a sump or collection point for disposal. It is used in particular where site conditions or structural design makes it difficult or impossible to use traditional tanking methods. A 0.5mm thick high density

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