Rising Damp and Treatment in Ghana
There is a significant rising damp problem that affects many buildings in Ghana. This is as a result of many builders, masons and contractors not taking an important and vital step to protect the building at the start of the building process.
This omission inevitably leads to the all too familiar interior, exterior damp patches and flaking paint you see on many buildings. This on-going, unsightly and quite devastating problem, which can easily be avoided by taking the necessary early steps, ends up proving extremely difficult and costly for the house owner to eradicate at a later date.
Installing a Damp Proof Course (DPC) and or a Damp Proof Membrane (DPM) right at the very start, without question, stops the damage caused by the rising damp process and prevents future expensive and often futile attempts to rectify the problem.
Ground water and moisture that rise up through the building blocks / bricks (capillary action) is a natural phenomenon, and this process happens in all permeable/porous materials including building blocks, bricks and concrete. This rising moisture ends up as damp patches, white salt marks, staining, bulging plaster and mould growth on walls. The dampness often also affects timber as well,- rotting timber door frames and skirting boards. Other problems that can also occur as a result are, blistering paint, damage to other surface finishes like wall paper, persistent damp odours in rooms and in some cases, respiratory and other health problems such as asthma and some allergies.
Building regulations in most jurisdictions require DPC as well as DPM to be used in the construction of new buildings to prevent damp rising through the walls and floors. Typically, damp will rise through the brick / block wall, however, the installation of a good quality DPC will act as a barrier and prevent moisture from rising.
At Pora ventures, our DPM is a high grade polyethylene sheet not less than 300 - 500 microns thickness (Pora ventures specification for Ghana considering the harsh weather conditions) laid under the floor prior to the concrete being cast to prevent moisture travelling up the concrete floor through capillary action. Omitting this first important fundamental step will ultimately lead to the destruction of the fabric of the building, and regrettably, this is the case for the majority of privately owned buildings in the country suffering from rising damp.
It is unclear whether Ghana Building Regulations make the use of DPC and DPM mandatory, but in any case, protect and prolong the life of your building. It is good practice to install a robust water and moisture repellent system such as what Pora Ventures supply to prevent the nightmare scenario of repeated attempts at resolving the ugly and potentially hazardous rising damp problem in the future.
Most home owners with a rising damp problem will attest to the fact that asking the masons around time and time again to try to solve the damp problem by hacking away the damp plaster and either cladding with stone, tiling or re-plastering with an assortment of waterproofing agents is very costly and does not resolve the problem.
At Pora Ventures, we supply high quality DPCs and two (2) grades of best quality 300 & 500 microns DPMs and jointing tapes, all manufactured to UK building standards that can be used to protect the building in the first instance. We supply and our specialist team can fit these at the start of your build, guaranteeing you a worry and damp free building. Alternatively, we can also supply the materials and then provide installation instructions to your builder.
Treating an existing building with rising damp presents unique challenges.
The risk of rising damp should be avoided at all cost by the use of good quality DPC and DPM at the start of the build. Sadly though, the modest additional cost of DPM and DPC relative to the overall cost of the build is regarded by most of the builders and house owners as unjustified and unnecessary. A costly mistake that many come to regret.
We at Pora Ventures treat rising damp in existing buildings. We tackle the inner core problem. It involves physically creating a layer that is moisture impermeable within the existing walls of the building. This is done in two ways...
By physical insertion of a new layer of DPC into the walls - The Retrofitting Method.
By the injection of our specialist PoraCap10 water repellent chemical solution into the walls. This is a high grade preparation that when injected into carefully prepared holes in the base of the wall, penetrates the blocks and forms a continuous and very effective chemical water-proof barrier that prevents further rise of moisture from the ground leaving the walls above dry and undamaged.
Pora Ventures will be pleased to further explain the two eradication options and help you make an informed decision on your rising damp treatment / repair.
As always, best to seek professional advice and a second opinion when it comes to rising damp repairs.
We guarantee all our rising damp treatment work in Ghana.
Over the years, we have been training some of our local masons to understand the above processes and be up to speed with our treatment method.
Call us now and we help you fix it.
Pora ventures is located at Osu Ako-Adjei bus stop directly opposite the Kingdom Bookshop.
Rising Damp and Treatment in Ghana
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