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Bedroom damp caused by poor air circulation

Left untreated, damp can be bad for both your health (the mould and spores can aggravate respiratory problems such as asthma) and the health of your property: If any form of damp is left unchecked it can cause a number of potentially serious issues, including damage to decorated surfaces, or timber decay and even wet rot, which can lead to structural deterioration, and may necessitate major repair costs. More »

Penetrating damp in brickwork can cause major wall instabilities

Whether it’s damp proofing walls to prevent penetrating damp, treating rising damp, or dealing with condensation problems, damp proofing costs needn’t be prohibitive, though selecting the appropriate treatment will depend on the results of the damp survey. More »

Deep wall damp can be almost hidden behind plastering and wall paper

Penetrating damp: Once the source of the water ingress has been identified and repaired, treatments such as silicone water repellents, bitumen coatings, or a waterproof membrane can be applied to guard against future damp problems. More »

Brickwork affected by damp can cause serious problems for your home

Rising damp: Specialist creams are injected into the brickwork to form a waterproof barrier at the base of the wall; this will prevent water rising and penetrating into the building. Once the brickwork has dried out, the interior walls are re-plastered with plaster containing a waterproof additive. More »


Tag Archives: damp proof course

What is Chemical Damp Proofing?

There are a number of solutions for damp issues – the solutions depend though on what kind of damp issue the property is affected by. In most cases though where rising damp has been diagnosed there may be a need to install a new damp proof course. Following on from of our previous blog post on Electro Osmotic Damp Proofing, we now take a look at a different method of installing a damp proof course (or DPC)  –  chemical damp proofing.

What is chemical damp proofing?

Chemical damp proofing refers to the injection of a damp proof course using a damp proof cream as opposed to a physical damp proof course. Our product, known as Driwise, cures within the masonry wall to develop an impervious shield to rising dampness, this prevents moisture coming up from the ground into the cured walls. Adjoining abutting walls can also be isolated by applying a vertical damp proof course.

How is a chemical damp proof course installed?

Installing a chemical damp proof course

Installing a chemical damp proof course

The cream is injected directly into the affected wall. Having drilled a line of small, clean holes placed above ground level the holes are then filled with the Driwise solution using a low pressure injection method as can be seen in the photo to the left.

Once installed, the cream uses the moisture in the damp wall to diffuse before curing to form a water-repellent resin. It is a considerably faster acting system, requiring no solvent or water to enable injection to proceed.

Installation has minimal preparation and application time, resulting in minimal disruption to the occupants of any property as well as ensuring peace of mind and a satisfied customer.



What are the benefits of chemical damp proofing?

A completed chemical damp proof course

A completed chemical damp proof course

  •  A considerably faster acting system than other damp proofing methods, requiring no solvent or water.
  • Offers a higher degree of protection against rising damp than the old fluid injection systems that it is designed to replace.
  • A simple installation with minimum disturbance to the property
  •  Not injected under pressure, making it a low hazard, cleaner and safer solution to use than conventional chemical injection systems.
  • Non-caustic and non-flammable without spillage.
  • Odourless
  • Long-term guarantee.

To find out more about chemical damp proofing and rising damp contact our team of damp specialists a call on 0800 0193 022.

What is Electro Osmotic Damp proofing?

There are various solutions to a damp problems – dependent of course on what type of damp problem the property is suffering from. In some instances there may be a need to install a new damp proof course – these can take the form of solid or chemical or as we are about to look at electric in the form of electro osmotic damp proofing!

What is electro osmotic damp proofing?

Installing electro osmotic damp proofing

Installing electro osmotic damp proofing

Electro osmotic damp proofing is for those people looking for a more scientific based damp proof course and uses electricity to prevent damp rising up. The electro osmotic system works by introducing a small electric charge in to the wall just above ground level.

This is done through use of titanium cathodes and anodes that are fitted into the brickwork just above ground level, these then draw power from the mains supply.

The effect of the small charge is to repel the rising moisture molecules back down the wall as the water molecules are drawn towards the negative electrodes.

As long as the positive electric charge remains the brickwork will remain free of damp.

How is an electro osmotic system installed?

The system is installed on the outside of the brickwork. Having drilled a series of small, neat holes just above ground level, anodes are inserted which in turn are linked by a connecting wire. This wire is then pointed into the wall resulting in the installation of a damp proof course that is fitted with minimal disruption to the property owner.

Benefits of electro osmotic damp proofing

– Unlike injected damp proof courses it is chemical free

– The system is suitable for properties of all types and ages

– A simple installation with minimum disturbance to the property

– A monitoring system can also be specified giving peace of mind the system is working

– Benefits from a long term guarantee

The system is proven to be very effective in difficult conditions such as stone wall, highly porus brick work and rubble filled walls where injection damp proof courses are not as effective.

To find out more about electro osmotic damp proofing give our team of damp specialists a call on 0800 0193 022.