Damp Proofing Treatment

Rising Damp - a worldwide phenomenon & major cause of masonry decay.

What is Rising Damp?

  • Rising damp is the common term for the slow upward transmission of moisture molecules in the lower section of walls and other ground-supported structures.
  • Construction materials; brick, stone, mortar, concrete etc are to some extent porous.
    Damp gradually moves upward from the soil through microcapillaries existing in their structure.
  • Evaporating moisture from the wall surface - inside and outside - allows more moisture to be drawn up from below. The cycle continues.
rising_damp

Effects of Rising Damp

Signs & Symptoms of Rising Damp

  • Another early sign is the damp smell - this is stale water in the walls.
  • Blistered plaster and wall coverings.
  • Tide marks on walls.
  • Wet patches appearing on wall surfaces.
  • Rotting  timber & floorboards.
  • Rusty window frames and other attached steel structures. 
  • Evidence of  salt at the lower parts of  walls.

Health Risks of Rising Damp

The health effects of rising damp are numerous.

Damp walls encourage the growth of moulds, which, with high humidity can lead to serious health problems for occupants.

Airborne mould concentrations have the potential to be inhaled.

Mould can produce toxic substances known as mycotoxins.

People with weakened immune systems are particularly susceptible to mould-related illness, also infants and children and the elderly.

Health Symptoms of Damp

  • Persons exposed to toxic mould can experience a variety of health effects, these include: allergic and other immune responses.
  • Allergic sinusitis.
  • Allergic conjunctivitis.
  • Eczema, asthma.
  • Hypersensitivity pneumonitis, and allergic contact dermatitis..
  • Infectious responses: mycosis, aspergillosis.
  • Mycotoxin responses: commonly exhibited as eye and throat irritations.
  • Neurotoxic responses: headache, fatigue, dizziness, memory and verbal problems, depression.

http://www.health.nsw.gov.au/environment/factsheets/Pages/mould.aspx

When is Damp NOT Rising Damp ?

Rising Damp is probably one of the most misdiagnosed problems in the building industry.

Many damp problems are not actually "rising damp" but due to other causes of damp.

Diagnosing Damp

Not all dampness in buildings is due to Rising Damp.

Rising Damp is just one of various factors causing Structural Damp

Therefore accurate diagnosis of the cause and extent of a damp problem is very important.
It is pointless to commence expensive rising damp works if other causes are simple remedial measures. 

Structural damp can be caused by: 

  • Rising Damp
  • Condensation
  • Poor Ventilation 
  • Penetrating or Lateral Damp 
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Rising Damp

  • Rising damp is the common term for the slow upward movement of water in the lower sections of walls and other ground-supported structures by capillary action.
  • Rising damp can be identified by a characteristic "tide mark" on the lower section of affected walls.
  • This tide mark is caused by soluble salts (particularly nitrates and chlorides) contained in the groundwater.

Condensation

  • Condensation comes from moist air within your home.
  • Warm air will condense near the cold floor and walls.
  • Water will then find its way into the bricks or  wood which forms your wall.

Ventilation

  • Maintaining underfloor ventilation is an important part of controlling damp.
  • Turn on exhaust fans, particularly when bathing, showering, cooking, doing laundry and drying clothes.
  • Adequate ventilation allows soil moisture to evaporate beneath the floor and pass out through the lower wall vents.
penetrating_damp

Penetrating Damp

  • Horizontal or penetrating damp can be leaks from pipes and blocked gutters, failed flashings, joints that have lost mortar and general build-up of dirt and mosses on stone or brickwork surfaces.
  • This will lead to water penetration into porous masonry and make it down walls as falling damo.
  • These leaks may seem small, with time, the water seeps through the wall and to the foundations.

Basic “housekeeping’ measures and attention to drainage, ventilation and guttering may help minimise other damp issues that are NOT related to rising damp.

Rising Damp Prevention

  • There are many approaches to the treatment of rising damp.
  • Key to the selection of an appropriate treatment is correct diagnosis of the dampness affecting a building.

  • There are a wide range of instruments and techniques that can be used to investigate the presence of moisture in building materials.
  • When used correctly, these devices provide a valuable aid to damp investigation.
  • However the competence and experience of the person undertaking damp investigations is often of greater importance than the device.
  • Experience and knowledge may be the difference between a correct and incorrect diagnosis of structural damp.

Capillary Rising Damp  - Elimination 

Treating Rising Damp - PROsystem

  1.  Technology: Electro-osmosis is smart water management in the walls and floors of buildings with rising damp problems.
    Electro-osmosis is a flow of liquid, in this case through porous materials, through the capillaries of construction masonry under the influence of magnetic fields. 
  2. Water & Overcoming Gravity: In contrast to the force of gravity, capillary water "rises" and reaches a certain height in the walls up to several metres.
    Water that enters walls through soil is not diluted but full of salt & nitrates.
    This is what causes the deterioration of plaster and other building materials.
    Where the water evaporates, salt can crystallize and increases its volume up to 12 times.
    In this way,the salt dissolves and causes flaking of paint, plaster, brick and other building materials.
  3. How Does PROsystem Work: uses low voltage impulses to cause the movement of water in the opposite direction within an electromagnetic field.
    Capillary rising damp  occurs due to the polarisation of water molecules.
    Due to capillary action, water "rises" up the wall, and while moving creates an additional magnetic field in the wall, which enhances the capillary effect.
    PROsystem changes the direction of water molecules towards the negatively charged ground.

PROsystem will reliably & safely eliminate
capillary Rising Damp. 

PROsystem:

  • The first results of PROsystem are visible within a few day.
  • Does not require invasive construction works.
  • Prevents further deterioration and constant maintenance due to damp.
  • Eliminates health risks associated with damp.
  • Device fits into small spaces, facilities, showrooms and museums etc.
  • Does not interfere with the structure of the building.
  • The PROsystem is permanently installed in the building
  • Device fits into small spaces, facilities, showrooms and museums etc.
rising-damp-treatment

FINDLAY-EVANS WATERPROOFING
Problem-solving expertise for damp proofing, waterproof membranes, crack injection & concrete repair. 
Find out more here

waterproofing contractors melbourne
Registered Building Practitioner Melbourne Victoria

PROsystem Rising Damp
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Deposit ONLY Required.

FULL PAYMENT ON COMPLETION
& ONLY AFTER SUCCESSFUL TREATMENT

If PROsystem Rising Damp treatment does not work - which after correct diagnosis of capillary rising damp is extremely unlikely - full refund of deposit & no final payment required. 

waterproofing contractors melbourne
Registered Building Practitioner Melbourne Victoria
waterproofing-contractor-Melbourne