John Newton & Co. Ltd | Damp Proofing
Newton® 601 Membranes are a slimline high-grade flooring membrane used primarily for isolating moisture-sensitive flooring from dampness in the floor slab. It can be used as the floor membrane as part of a Waterproof Cavity Drain System, when the survey has ascertained that there is no risk of water entering through the body of the slab.
Newton® 601 membranes allows for the installation of sensitive flooring to be laid above ‘green’, still curing concrete as soon as the concrete is walkable, usually two days, significantly reducing project times.
With a loading capability of over 1000kN/m², Newton® 601 membranes are able to resist very high compressive loading and is suitable for use as a high load DPC within structural block walls, especially when used to connect the wall and floor membranes within the Cavity Drain System.
Newton® 601 membranes are guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years (DIN 9001:2000) Newton® 601 Slimline is inert and is highly resistant to water, alkalies, hydro-carbons, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.
Newton® 601 Slimline can be finished over with screed, 18mm or 22mm T&G chipboard or partical board. Laminate and timber flooring should be installed over a layer of 18mm or 22mm T&G chipboard.
Available in Roll sizes ranging from 20M² to 40M².
Brush the floor clean
Remove any sharp protrusions
Fill all non-structural cracks above 1mm wide
All structural cracks should be repaired or treated
Any holes or indentation should be filled with a suitable filler
The membrane is rolled out along the longest dimension of the floor with the grooved surface facing downwards. Subsequent lengths of membrane are rolled out and slightly overlapped and taped to form a continuous flooring membrane. 100mm of excess membrane is folded up to the walls to create an upturn so that all floor finishes are isolated from dampness to the walls.
Start with the flange (80mm flat section to one edge of the roll) at either one of the two longest walls
Roll out the first length of membrane and cut a length of membrane off the roll that is 200mm longer than the room length
Make a fold 100mm from the edge closest to the wall and lap to the long wall to form an upturn
Roll out consecutive further rolls so that the flange is overlapping the already laid membrane by 80mm.
Continue until the whole of the area to be treated is covered
Clean the flange and the top surface where the seal is to be made with a clean rag and cleaning alcohol. In cold and humid conditions a heat-gun may be required to carefully ‘burn’ off the surface moisture
Apply Newton Waterseal Tape (Or Platinum Waterseal Tape) to the underside of the flanged areas where they overlap the previous sheet of membrane. Leave the white backing tape in place
Align the lengths of membrane so they are perfectly parallel to each other. Use the lines on the membrane as a guide
Carefully remove the backing paper of the Waterseal Tape and at the same time press the top sheet into the bottom sheet to form the seal. Continue to the whole length and to all overlapping lengths of membrane
After the last length has been sealed to the subsequent lengths, cut the last length to size so that it fits the room space correctly, ensuring that a 100mm surplus is available for lapping up the wall as an upturn
Ensure the membrane is flat to the whole surface area and then create the last upturn to the second of the longer walls. Trim the upturn to 100m to all upturns
Fold the membrane to form the corners. This is done by folding the corner at 45 degrees and then folding this behind one of the upturns
Seal around protrusions with Platinum Mesh Tape or Newton Overtape
Lay flooring above
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