Causes of Damp

One of the most frequent problems encountered within a home/business is damp. Each year, the average home/business in South Africa copes with vast amounts of rainwater, so it is no surprise that damp has become a big problem.

In many cases, damp can be unwittingly encouraged due to poor maintenance.  There are several causes of damp in the home/business, but all can be remedied. Damp can be in or around the roof, walls, floors, windows, doors or pipe-work.

Often, if there is a damp patch visible inside the home/business, the cause can be identified from an issue on the exterior. For instance, a wet patch at the top of a wall might be due to a leaking gutter outside.

Dealing with damp before it becomes a problem will save you time and money in the long term. If damp problems are left untreated, what was initially an aesthetic annoyance can become very expensive structural damage.

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Causes of damp – Leaks

Leaks can often be a major cause of damp within a property leading to issues such as penetrating damp and wet rot.  Generally, the result of a leak will be localised to one area of a wall.  If you notice localised damp patches, check the following:

  • Examine downpipes and gutters within the affected area.
  • Look for damage, cracks, faulty joints or seals.
  • Ensure that your drains and downpipes are not blocked. Rain water can very easily be backed up forcing itself out of a pipe joint within the affected area.
  • If the damp is below a flat roof, or a roof channel, check that the felt is sound.
  • If the damp is below a window, check the window frame and window sill. Badly fitted windows can also let damp penetrate into a room
  • If the damp is localised around a chimney breast, check the flashing and tiles

Causes of damp – Rising Damp

Ff you are on the ground floor and the damp seems to be at the bottom of walls, it could be that the cause of damp is the result of your damp proof course being bridged resulting in Rising Damp.  This could be because of an increase of ground levels around the affected damp area or that your damp proof course has failed.

If it is the case whereby the damp proof course has been bridged, consider if there is any external features installed within the affected area such as a flower bed or new patio. Could there be an excess amount of soil against the wall from some recent gardening that has bridged the damp proof course?  By simply lowering the ground level or removing any of these features and leaving the area to dry out, you could solve your rising damp issue.

If it is the case the damp proof course has not been bridged, then it could be the possibility that your damp proof course has failed meaning that you will need to consider repairing it.  In this instance, we would always recommend you contact a damp professional to to fully evaluate the extent of the damp issue.

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Our Suppliers

We take great pride in our work and our aim is to ensure that we always meet the highest standards.  At Wertan Projects, we only use quality products & materials, backed byour suppliers and the guarantees that they provide on certains products.  Different applications require the use of different products – with our experience, you can be assured that we will use the correct product for the surface and conditions. We only use quality products, and trusted brands such as: DampsurePlascon, Dulux, etc. 

We have a good relationship with our product suppliers who are and we do have access to these companies technical departments to ensure that we give our customers the best advice on problem areas

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  • Office Tel no: 011 976 0264
  • Neotel Tel no: 011 051 4563
  • Cell no: 072-184-3432
  • Fax no: 0865824019
  • Email: info@wertan.co.za
  • P O Box 90952, Birchleigh
Residential Painting Contractors Kempton Park