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Damp Proofing

Damp Proofing Cream - 380 DPC

£15.95
£14.75
£17.70 inc. VAT

You save £1.20Valid until 01/01/1970

Damp proof cream in 380ml DIY cartridges. Stop damp walls with an advanced chemical damp proof course. No specialist equipment needed. Simple DPC injection treatment using caulking gun to treat up to 1.9m of double leaf brickwork.

Damp Proofing Paint

£48.75
£36.50
£43.80 inc. VAT

You save £12.25Valid until 01/01/1970

General-purpose, quick drying damp proof paint that dries to form a water-proof membrane. An effective penetrating damp treatment for wa­ter­pro­ofi­ng wall surfaces. 5L

Damp-Proofing Membrane

£118.00
£108.00
£129.60 inc. VAT

You save £10Valid until 01/01/1970

Heavy duty damp proofing membrane with air gap and mesh face. Ideal wall lining following DPC injection. Enables the direct application of wall plaster on damp walls within the drying out period. 3 sizes.

Electro Osmotic DPC Kit

£402.25
£279.50
£335.40 inc. VAT

You save £122.75Valid until 01/01/1970

Lectros electro osmotic damp proof system. A sci­en­ti­fic­al­ly proven rising damp treatment using osmosis. Ideal damp treatment for thick brickwork and rubble-filled stone walls.

DIY Damp Proofing Cream - 380 DPC Kit

£154.25
£108.00
£129.60 inc. VAT

You save £46.25Valid until 01/01/1970

Easy to use DIY damp proofing kit. Includes everything you need to provide an effective damp proof course in walls. This kit treats up to 30m of single leaf walls or 15m of double leaf brickwork.

Masonry Water Repellent

£32.50
£21.75
£26.10 inc. VAT

You save £10.75Valid until 01/01/1970

Water repellent surface treatment for wall suffering from penetrating damp. Prevents moisture migrating through masonry walls and brickwork facades. Costs much less than weather resistant render products. 5 Litres

Damp Treatment - All Cure Total

£132.75
£105.00
£126.00 inc. VAT

You save £27.75Valid until 01/01/1970

A universal damp treatment kit for treating damp walls above ground level. This 3 in 1 damp treatment system will stop rising-damp block penetrating damp and combat con­den­sati­on. Options for 5m and 10m of wall

Damp Proof Injection Fluid

£47.50
£39.95
£47.94 inc. VAT

You save £7.55Valid until 01/01/1970

A BBA Approved damp proof injection fluid concentrate. Inject damp proof liquid at the rate of 3 litres per metre run of 230mm thickness wall for the treatment of rising damp in walls 3.6L dilutes to make 25L

DPC Injection Cream - Damp Cure 6000 Kit

£225.25
£157.50
£189.00 inc. VAT

You save £67.75Valid until 01/01/1970

Damp proof treatment in a low cost and easy to use DPC injection kit. Includes sufficient Damp-Cure cream to damp proof up to 60m of 110mm single leaf wall or30m DPC for 225mm double leaf wall.

Anti-Con­den­sati­on Paint

£59.75
£44.95
£53.94 inc. VAT

You save £14.80Valid until 01/01/1970

Anti-con­den­sati­on paint for inhibits con­den­sati­on by absorbing damp and moisture and improving insulation. The paint has a porous structure which absorbs con­den­sati­on on ceilings and inside wardrobes. Moisture-absorption capacity increases with paint thi

Damp Check - Mesh Membrane Kit

£117.00
£105.00
£126.00 inc. VAT

You save £12Valid until 01/01/1970

Damp Check Kit provides an effective moisture barrier when isolating damp walls from internal finishes. The air gap behind the damp-proof membrane allows walls to breathe and water to drain. 10m Kit

Damp Seal Water Repellent Cream

£89.75
£69.50
£83.40 inc. VAT

You save £20.25Valid until 01/01/1970

Damp Seal masonry water repellent is a high strength silane cream treatment that waterproofs brick and stone facades including walls, bridges and tunnels. 3kg Tub

Damp Proof Cream - Dampcure 1000 Kit

£265.25
£212.50
£255.00 inc. VAT

You save £52.75Valid until 01/01/1970

Damp proof cream kit for Builders. This 8Litre DPC injection pack contains the products needed to provide a chemical DPC to stop rising damp in walls. This kit treats up to40m of double leaf / cavity wall

Epoxy Floor Seal Paint

£53.50
£42.50
£51.00 inc. VAT

You save £11Valid until 01/01/1970

Paint-on liquid damp proof membrane for new or existing floors. A two-part high hardness, abrasion resistant and waterproof epoxy coating. 2.5G or 5KG

Tanking Membrane 20m

£149.50
£119.50
£143.40 inc. VAT

You save £30Valid until 01/01/1970

A cost effective po­lyp­ro­pyle­ne tanking membrane with 2mm studs formed on one face of the product and a mesh welded to the other side. Available at a special trade price in a 1m x 20m or 2m x 20m roll

Penetrating Damp Treatment

£116.95
£77.95
£93.54 inc. VAT

You save £39Valid until 01/01/1970

Water repellent surface treatment for protection against penetrating damp. Prevents water migrating through brick and masonry façade walls. Costs much less than storm-proof render products. 25L

Damp proofing is the action taken to stop dampness from an external moisture source being transmitting through our walls and into the inside of our homes. If a house has a damp problem then it is vital to establish the precise cause of the moisture before establishing the appropriate remedial treatment. The most common causes of excess moisture in buildings are:

  • Condensation - Sorbent moisture from condensed water vapour that is deposited when humid air makes contact with a cooler surface.
  • Penetrating damp - Capillary moisture soaking through a porous wall as it is absorbed from an external source
  • Rising damp - Capillary moisture soaking upwards into a porous wall as it is absorbed from a ground-moisture source.

Establish the cause of dampness and remove the moisture source or by providing a water repellent layer to prevent moisture from being transmitted into the home.

  • Condensation occurs when air moisture content is too high in relation to temperature. Consequently condensation can be avoided by correcting the balance between moisture generation and air or surface temperatures.
  • Penetrating damp can avoided by regular building maintenance such as repairing gutters, filling cracks in walls and repointing etc.
  • Rising damp can be alleviated by removing soils or cavity blockages that breach the damp proof course. Where a DPC is missing or is defective then remedial damp treatment can be used to combat capillarity.

A damp proof course (DPC) is a waterproof layer that is installed 150mm above ground level during the construction of a wall to prevent ground water rising from the foundations into the home.

Brick stone and mortar building products are each porous to various degrees. Without an effective DPC dampness may be absorbed into porous walls through the process of capillarity. This capillary action is often referred to as rising damp and can be detrimental to your home. The amount of rising moisture that can affect a wall that has no protection is determined by ground moisture levels and the balance between capillary forces, gravity and evaporation. The main controlling factors are the rate of suction of the water into the wall and the ease at which dampness can evaporate from it.

Modern buildings with cement mortars have lower absorption rates than older buildings with lime mortars. It therefore follows that damp control treatment is more often required in older properties

Damp Proofing Products

A very common method for treating rising damp in homes with traditional brick walls is a Chemical DPC Injection Treatment. A silicone-based damp proof cream is injected into a series of holes that are formed along a mortar bed joint. The cream is absorbed into the pores of the masonry. The cream lines the pores with a silicone coating that limits capillarity and forms a chemical damp proof course. Once the DPC injection treatment is complete and the source of the dampness cut off then the wall will begin to dry through continued surface evaporation. Thin walls will dry quicker than thick walls and drying walls may leave residual salt deposits

DPC injection systems are less effective in counteracting rising damp where mortar joints are not continuous along the length of a wall or through the entire depth of it. A more effective method of treating rising damp in houses having random stone or rubble filled walls is through Electro-osmosis Damp Proofing. An electric DPC system uses a series of anodes placed in the wall to provide a small positive charge through it to repel free moisture molecules. A cathode that is buried in the ground attracts the positively charges moisture molecules. As electro osmotic forces are substantially greater than those of capillarity then moisture is forced from the anodes in the wall and down to the cathode in the ground

In addition to treating rising damp it is important to damp proof your home against penetration damp that may be entering the building through walls or roofs. Pore-lining façade cream, damp proof paint and waterproofing membranes all have a role to play in keeping the home free from moisture penetration.

Correctly selected damp proofing products will successfully stop moisture from penetrating or rising through the walls into the interior of homes. Twistfix help to make the process quick, easy and cost effective.

 

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