Electro Osmosis Damp Proof Course
Where the problem has been identified as rising damp, and
where a damp proof course is absent or inadequate, we offer
different methods of retrofitting a dpc (damp proof course).
Generally, a damp proof course is installed by Chemical
injection or by means of Electro Osmosis. Occasionally,
it may be preferable to use the Newlath damp proof
membrane system as a rising damp solution.
Electro Osmosis DPC
This is based on the theory that moisture rises from the earth
by capillary and osmotic action, causing an electrical potential to
develop between the wall and the earth. The introduction of an
electric current interferes with the mechanics of this moisture
flow. There are two electro osmotic methods, the passive system and
the active system.
The passive system relies on earthing a copper strip inserted at
approximately ½ meter intervals into 2/3 of the thickness of the
wall. The earth rod, or the series of earth rods, short out the
electrical potential, thus stopping further rising damp.
The active system uses a low DC current from a mains
transformer, directed to wires linking up to anodes in the wall,
providing an electric charge repelling the charged water molecules
rising from the ground.
Electro osmosis DPC is usually used for stone buildings;
however, our knowledgable surveyors have years of experience in
determining which method is the best solution for each situation.
We provide a detailed written report on the findings of the survey,
along with a competitive quotation for any remedial work
required. Our surveyors will also identify any timbers
affected by wet rot or
dry rot and suggest remedial works, if necessary. We may
provide an insurance backed guarantee for all
remedial damp works carried out.
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