Newton CDM 503 Membrane - 3mm Studded Waterproof Membrane

Newton CDM 503 Waterproof Membrane is a BBA Approved, 3mm Studded Waterproof Membrane which can be used on Walls and Floors.

Part of the Newton CDM System, Newton CDM 503 Membrane is suitable for the waterproofing Walls, Vaulted Soffits and Floors in earth retained structures such as Basements, Cellars, Tunnels etc...

With its 3mm Stud, Newton CDM 503 Waterproof Membrane is ideal for when space is tight, such as with stairs or low headroom.

  Newton CDM 503 is supported by BBA Certification Certificate Number 94/3010.

Newton CDM 503 Waterproof Membrane is supplied in (W) 2.0M x (L) 20M - (40M²) Rolls.

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Sale price £189.00 Regular price £195.00
ex. VAT
Regular price £226.80 £226.80 Sale price Regular price £234.00
inc. VAT

Newton CDM 503 Waterproof Membrane is a BBA Approved, 3mm Studded Waterproof Membrane which can be used on Walls and Floors.

Part of the Newton CDM System, Newton CDM 503 Membrane is suitable for the waterproofing Walls, Vaulted Soffits and Floors in earth retained structures such as Basements, Cellars, Tunnels etc...

With its 3mm Stud, Newton CDM 503 Waterproof Membrane is ideal for when space is tight, such as with stairs or low headroom.

  Newton CDM 503 is supported by BBA Certification Certificate Number 94/3010.

Newton CDM 503 Waterproof Membrane is supplied in (W) 2.0M x (L) 20M - (40M²) Rolls.

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Newton CDM 503 Waterproof Membrane

Newton CDM 503 Waterproof Membrane is a high quality, Cavity Drain Waterproofing Membrane, with a 3mm Stud, which can be used within the Newton CDM System, Newtons internally applied waterproofing system that includes Newton CDM Basedrain Drainage and Newton Pumping Systems.

Newton CDM 503 Waterproof Membrane is suitable for the waterproofing of earth retained walls, vaulted soffits and floors, is guaranteed against deterioration for 30 years, has a life expectancy of at least 50 years (DIN 9001:2000).

Newton CDM 503 Waterproof Membrane is inert and, therefore, non-polluting to drinking water, highly resistant to water, alkalies, saline solutions and organic acids, and not affected by minerals and hydro-carbons.

It is also impervious to root penetration, is rot-proof, and resistant to bacteria, fungi and other small organisms. Newton CDM 503 also exhibits high compressive loading stability.

Typical Applications:

Newton CDM 503 Waterproof Membrane, as part of the Newton CDM System, can be used as both a WALL and FLOOR Membrane for the Waterproofing of:

    ✔   Basements

    ✔   Cellars

    ✔   Vaults

    ✔   Tunnels

    ✔   Arches

Benefits & Features:

  • Does not require extensive and damaging preparation to the wall surface.

  • Only 3mm in thickness and so is ideal for when space is tight, such as with stairs or low headroom.

  • Speed of installation.

  • Provides vapour control and, when used with humidity control systems, is capable of delivering an environment to all levels within a Grade 3 environment to BS 8102:2009.

  • Resistant to chemically aggressive groundwater, efflorescing salts and hydrocarbon contamination.

  • Rot-proof and resistant to root penetration.

Technical Data:

Membrane Material HDPE
Membrane Thickness 0.6mm
Stud Depth 2.9mm
Density 500g/m²
Vicat Softening Temperature 126°C
Service Temperature -40°C to +80°C
Compressive Strength (EN 25619-2) 320 kpa
Thermal Conductivity (EN12667) 0.461 W/mK
Water Vapour Resistance - Sd Value (BS EN 1931) >604m
Water Vapour Resistance - μ Value >1208000μ
Water Vapour Diffusion Resistance >3020 MNs/g
Resistance to Fire (BS EN 13501-1) EuroClass E
Chemical Resistance - Excellent (EN 14030) 100%
Oxidation Resistance - Excellent (EN ISO 13438) 100%

 

Preparation:

Newton CDM 503 Waterproof Membrane can be installed over a wide range of substrates in varying situations - walls, floors, ceilings, soffits, etc. However, before the system is installed, the area must be assessed to determine what preparation is required:

All timber and other organic material must be removed to prevent risk of fungal or bacterial growth behind the System, e.g. skirting boards, timber plates, old wallpaper etc. If evidence of rot exists, this must be dealt with by a specialist contractor prior to installation of the system (See our Woodworm & Dry Rot Control Products). If any mould, etc. exists, this should be cleaned off and the area sterilised with a Fungicidal Wash.

If the walls are uneven or areas have deteriorated, any large depressions should be levelled and made good to ensure a solid fixing

When assessing floor applications, consideration should be given to the type of finish that is required. The floor must be cleared of oil, loose material and any sharp protrusions and should be made level. Any holes or severe depressions should be filled. When a timber floor is preferred, then more consideration should be given to achieve a flat substrate prior to laying the membrane. This will relieve any undue movement when fitting the floor covering

The design of the drainage system should be agreed, implemented and tested before covering by the membrane. The exception to this is where Newton CDM Basedrain is sat above the slab or raft. Flood tests should be made to check the slab or raft is flat and level prior to the installation of the Newton CDM Basedrain, but the system can only be fully tested once the floor membrane and some form of resistance to water pressure is placed above the membrane such as temporary boards with bags of ballast or sand placed above, or the finished floor covering

When fixing the system to flat soffits you must ensure that there is a fall to create proper drainage and prevent ponding. Any sagging of the membrane should not be great enough for ponding to take place

New concrete should be treated with Wykamol Anti Lime Sealer which prevents free lime from the curing concrete being drawn out by ingressing water.

 

Application on Walls:

Newton CDM 503 should be installed by those with experience of structural waterproofing.

It is recommended that Newton CDM 503 and its ancillary products be installed by contractors trained for the correct use and specification of the product.

Newton CDM 503 is fixed with the studs against the wall to create an air / depressurisation gap.

The membrane can be fixed either vertically or horizontally. When making this decision, you will need to take into account the size of the area to be lined, and the height of the walls relative to the width of the membrane. 

Horizontal fixing requires less cuts and jointing but the full roll is very heavy at first. Vertical fixing has much lighter strips to fix, but requires that each of these is taped back together again. You may find that vertical fixing is easier, but requires more Newton CDM Waterseal Tape or Newton CDM Overtape for jointing.

The membrane is fixed to the wall with the Newton CDM MultiPlug. The MultiPlug has a soft rubber sealing washer fitted to the plug for sealing to the wall membrane.

Place the membrane in position as level as you can judge by eye. Using a 10mm SDS Drill Bit, drill through the centre of a stud near the top and edge to a depth greater than the fixing.

The fixing is then hammered into the pre-drilled hole until the plug sits flush in the stud. The rubber washer re-seals the hole. Level the membrane using the spirit level or laser level if used, and fix another plug about 2 metres along at the top of the sheet. The membrane will now be hanging level to the wall.

If you are fixing horizontally, continue fixing every 2 metres until you have reached the end of the roll or you have covered all of the wall(s) to be treated. It is very important to regularly check the level. If the membrane is not level, you may well find that the membrane is kinked and looks unsightly, it will also dive down when fitted around corners.

If you are fixing vertically, hang each subsequent sheet by the two fixings as described above.

Newton CDM 503 does not have a flange, so a butted joint is used.

Starting at one side of the room, unroll the membrane with the studs down. The next membrane width is rolled out so that edges of the two rolls meet at a ‘butt joint’. Clean both edges.

Newton CDM Overtape is then applied above the butted joint to join the two widths of membrane. Newton CDM Overtape has a split backing paper, and it is easier to apply the Overtape to one roll and then the other by removing half the backing paper at a time. This process is repeated until all areas are covered.

Apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.

Fixing Centres:

Once the wall membrane is hanging from the top fixings the rest of the fixing plugs need to be fixed.

The spacing of these fixings is dependant on the type of wall finish to be used:

  • Timber Battens - 600mm centres vertically and 400mm horizontally.

  • Barrel Vaults - Tighter centres 300mm around the vault and 600mm down the vault.

  • Fixed Metal Track (Gypliner) - 800mm centres vertically and 600mm horizontally.

  • Brick or Block Walls restrained to the retaining wall using ties should have the fixings at centres to provide the correct number of restraints at the correct centres.

  • Free standing timber and metal frames and free standing block walls do not require specific fixing centres. In these cases use sufficient fixings to ensure the membrane is neat and tidy and reasonably tight to the wall, especially around corners and reveals.

  • When fixing the system to vaulted soffits you must ensure that enough fixings are used to keep the wall membrane tight to the soffits with no sagging.

  • All fixings should be in line both horizontally and vertically.

Battens:

Battens should be pre-treated and of a minimum dimension of 25mm x 38mm although you may find that 25mm x 50mm offers better fixing at the edge of the plasterboard.

The battens can be fixed into the MultiPlug without piercing the membrane, by using 5mm (size 10) self-tapping screws. Newton CDM MultiPlugs will take 30mm of screw, so be sure to purchase the correct length for the thickness of batten.

Over-tightening of over length screws can loosen the plug. Be very careful not to puncture the wall membrane when drilling and fixing the battens. Battens should be fixed so that all plasterboard edges are supported. Use a Timber Treatment to protect cut battens.

Once the battens are fitted into position, plasterboard can be fixed to them using clout nails or preferably plasterboard screws. Care should be taken not to exceed the depth of the battens with the screws, and thereby puncture the membrane.

Alternative Fixings:

Other finishes may be employed depending on the requirements of the specifier.

Free Standing Frame:

This method should be employed if the wall is undulating, as with some stone structures or where space loss is a secondary consideration. The frame would be fixed to the soffit and the floor finish with the supplied ‘U’ channels.

With the increasing requirement of insulation to meet Part ‘L’ of building code, the use of these frames is becoming more popular, the thickness of insulation required is often in excess of the thickness of the frame, and so the use of these frames does not add extra depth to the wall build when using this method.

Because the frame is free standing and has no relationship with the wall membrane, very few fixings are required and so this wall finish above allows for the fastest and most efficient method of fixing Newton CDM 503 to the wall.

Proprietary Fixing Systems:

Fixing systems such as Gypliner or Lafarge can be used with Newton System 500. It is also possible to use metal profile systems when constructing new internal walls.

Internal Block Walls:

If preferred the system can provide a water and vapour proof barrier, and then be lined with a block or brick inner skin. Special ties are available that fit into the Newton CDM MultiPlug for lateral restraint of the internal wall. The ties and retaining clips can also be used for the fixing and holding in place the wall insulation.

Typical Wall Finishes:

1. Independent Metal or Timber Frame System Using Newton CDM 503 Membrane (Click to Enlarge)