What Kind Of Damp Is Affecting Your Property?

What Kind Of Damp Is Affecting Your Property?

What kind Of Damp Is Affecting Your Property?


Knowing what kind of damp is affecting your property is important as treatments for each type of damp vary. Within this blog, we will be sharing the knowledge of DH Damp Proofing & Plastering with you lovely people in London & Berkshire.


It’s no secret that the autumn and winter months bring with them the higher possibility of damp and condensation problems, due to increased rainfall and colder weather. It’s during the colder months of the year that we use our central heating more, are less inclined to have adequate ventilation and may cook more and dry our clothes indoors on radiators. These behaviours coupled with increased exterior moisture can create the perfect storm for damp and condensation problems to arise.


It’s not only what is going on inside our properties that can create problems, the exterior of our properties can also take a bashing in the colder months. An increased frequency and severity of storms can damage tiles on roofs, the pointing, chimney stacks and expose faults in the seal of windows along with an increase of rainfall, snow and freezing pipes can all contribute or expose a damp problem.


So, you’ve now noticed that there is something going on within your property but what kind of damp is it? Below we will explore different types of damp and their characteristics.


Condensation, by far the most common problem during colder months due to poor ventilation and increased use of central heating, drying of clothes indoors, cooking and hot showers or baths. The typical signs of a condensation problem are the steaming up of windows, damp patches on walls which are more prominent behind furniture or in corners, black dots on window frames and window coverings, peeling wall paper, black mould growth and soft furnishings/fabrics become more prone to mildew and mould.


Rising damp, caused by moisture being sucked into porous building materials such as brick and mortar. This can be due to a change in the exterior ground level causing a breach of the damp course such as a new patio or a flower bed being too close to the property. Rising damp is characterised by a visible water mark in a capillary form rising from the bottom of the wall and rising to about a maximum of 1.5 meters, a musty smell, dark and damp patches on walls, peeling of wallpaper or blistering of paint and timber skirtings’ that begin to decay and show signs of wood boring beetles (timber infestation).


Penetrative damp, this type of damp is caused by moisture ingress from the exterior of the property into the interior. Typically, the causes of penetrative damp are damaged mortar, aging bricks that lose the ability to keep out moisture, spalled bricks, windows that are not sufficiently sealed or damaged chimney stacks and roofs. Penetrative damp is characterised by damage to plaster, blotchy damp patches on the interior walls, black mould, wet rot to the interior timbers and excessive moss growth on the exterior walls.


All of the above types of damp require a professional to investigate the root cause and put in place a suitable treatment plan. Each type of damp and each individual case will require a bespoke plan of action to treat the damp and to prevent any problems recurring. If you have any questions or are worried that you may have a damp problem call our expert team for advice or to book in an inspection.

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