Damp Proof Membrane Kits
Damp internal walls are unfortunately a significant problem for many homeowners. When a property has damp, you’ll find that it can affect the atmosphere in the house dramatically – a general dampness pervades with an unpleasant musty smell and often a chill due to the fact that damp patches on walls reduces heat insulation.
A high quality Damp Proof Membrane Kits that contains all you need to protect internal walls against damp & the reappearance of salts. It is specifically designed for application on to damp walls to isolate them from new finishes.
Membrane Kits
Damp Walls
Our P2 membrane kit is ideal for damp walls. It is specifically designed to be applied to damp walls to isolate them from new finishes. The membrane kit’s membrane is impervious to moisture and moisture vapour.
This means they create a barrier between the old surface and your new finish. This effectively isolates damp walls and prevents any new salt deposits on the surface plaster and damage to decoration.
Salt Contaminated Walls
Our P2 membrane kit is idea membrane is the ideal product for isolating salt contaminated surfaces. These surfaces can often appear damp in periods of high humidity.
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. This is often misdiagnosed as penetrating or rising damp. The membrane simply isolates the background contaminated substrate from the new finish alleviating any signs of damp.
Damp Proof Membrane Kit - Preparation
A) Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in
good condition, it does not have to be removed and the membrane can be fitted directly over. If the render is damaged, local repairs may be required.
B) Loose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removed. Obtain as flat a surface as possible. If the wall is
undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane rather than dubbing out over the top of the membrane.
C) A flat uniform surface to the substrate means that the plaster or render above the membrane will be uniform also and less likely to have cracking caused by differential thicknesses. If evidence of bacterial
growth can be seen, use a fungicidal product prior to the fitting of the membrane. If any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialist.
D) If a new slab is to be laid as part of the works, it is preferable to fit the membrane prior to the laying of the floor slab with the floor DPM extending upwards in front of the Platon PB2 ready for the concrete
pour.
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