Do you think your home has a problem with rising damp?
Symptoms of rising damp can be seen and felt. Improper plumbing and drainage, faulty gutter work, floods and condensation of warm air against a cold wall can result in rising damp problems in the home. Also, when structures lack installation of a damp proof course or have an inadequate damp proof course due to age or improper installation, then rising damp can also occur.
Rising damp is often misdiagnosed and unwanted treatments are introduced that eventually cause more symptoms of rising damp.
Rising damp can affect your health resulting in respiratory illness, skin and visual issues. Rising damp therefore needs to be attended to as and when it is found in the home.
Call the experts at London Damp Specialists Ltd to eradicate the damp immediately by calling us on Outer London 020 8528 3864 or Inner London 020 7458 4864.
Signs of rising damp
Recognising rising damp and dealing with it is essentially done by using a moisture meter to measure the moisture content in the wall and also by visual signs including:
- Bubbling plaster
- Flaking paint
- Pealing wallpaper
- Blown plaster
- Swollen MDF skirting
- Rusting corner beads
- Rusted plug sockets
Recognising rising damp and dealing with it is essentially done by using a moisture meter to measure the moisture content in the wall and also by visual signs such as tide line, yellow or brown stained patterns formed on the walls up to 1 meter from the skirting board and fluffy, elevated, powdery salt deposits washed out from the bricks, block or stone onto the plasterwork.
Misdiagnosis leads to waste of money, time and effort for those involved. A Rising damp proof course must be introduced to the property to prevent rising damp in the future.
A rising damp proof course must be introduced to the property to prevent rising damp in the future.
What causes rising damp
Numerous reasons affect the longevity of buildings and infrastructures, dampness being one of the worst. Rising damp or salt damp occurs when the ground water rises upwards through the pores of the permeable wall by the capillary action.
Retained moisture content then evaporates through the permeable surface leaving behind soluble salts taken from the source and from the building materials. The left behind salts are emitted out through the plasterwork and settle as salt deposits on the walls.
If evaporation is not allowed in cases of defective impermeable paint finish, then salt concentration increases resulting in thick crystalline deposits in the form of flowers. If evaporation occurs within the building material, salt deposits within the pores of the surface.
The most common factors that influences the movement of moisture upwards is the deterioration of the damp course and mortar in the brickwork also the use of slopes without proper drainage or plumbing as well as flood catastrophe.
Sometimes, hygroscopic salts present in materials absorb moisture and result in bloom patterns at fluctuating relative humidity levels in unoccupied structures. When structures lack installation of a damp proof course or have a damp proof course that is inadequate due to its age or improper installation, then rising damp occurs.
When this damp proof course is breached by another structure or by left over building materials, then rising damp becomes prevalent by the creation of a bridge for moisture to travel from ground over the damp proof course, up the wall.
Additionally, when the neighbourhood lacks a damp proof course, or the damp proof course is higher, moisture can travel around the damp proof course from the neighbour into the resident’s area causing rising damp.
Rising damp is often misdiagnosed and unwanted treatments are introduced that can eventually cause more symptoms of rising damp.
Treatment of rising damp
The original damp proof course is a water proof layer in the wall or both walls (if cavity wall is seen), about 6 inches from the outside ground on the external wall and under the raised timber floor or near the concrete floor on the internal wall, in which both the courses are on the same level.
If the course is breached by debris or building materials, then water travels around the course and up the wall. If the area next to the external wall is higher than the damp proof course installed, then water is allowed to travel up through the area and cross to the wall over the damp proof installed, acting like a bridge. These factors must be considered when dealing with rising damp.
Rising damp can be simply treated by modifying the old damp course to extend the lifespan of the wall. Damp proofing involves removing affected bricks or plaster and replacing with new waterproof materials.
Rising damp treatments can include:
- Plaster removal to 1.2 meters high
- Chemical DPC injections
- Salt neutralizer
- Tanking Slurry
- Waterproof render
- Applying skim coat plaster
Rising damp is a serious, complex problem
Which is why 1000’s of home owners have used London Damp Specialists. If you need expertise and skilled damp specialists book your free survey today or call us direct on 020 8528 3864
All our work is covered by our no-quibble 30 year guarantee at no extra cost
Our 30 year standard guarantee
This is the based upon the industry standard, all our works are performed by our full time employed experienced and trained technicians.
We can also offer GPI on all our services so please ask about our optional extra 10 year insurance backed guarantee.
What happens next?
Call us on 020 8528 3864, or 020 7458 4864 for Central London.
Alternatively, you can book a survey online by completing your details below.
Once you have submitted the form, one of our surveyors will be in touch with you to discuss your problems within 24 hours.
Your free, no obligation damp survey will typically only take between 15 to 30 minutes.