rising damp projects

Damp proofing

Almost all buildings and structures that are exposed to the elements will be prone to water ingress at some time in the future. If this water ingress is left unchecked it can cause severe damage to the property, possibly causing structural failure, and thus leading to major repair costs for the owners.

Damp proofing products are used for the prevention and control of water ingress into a structure. Without adequate damp proofing a building or structure will naturally deteriorate due to one or a combination of the following effects:

  • Damp walls – causing de-bonding and deterioration of decorated surfaces
  • Condensation – leading to the unhealthy spread of mould and rots
  • Timber decay & Wood Rot – Wet and dry rot which could lead to structural failure
  • Structural deterioration – the fabric of the building can deteriorate to a point where it needs major costly repair work to make it fit for its intended purpose.

Whether this water ingress is above or below ground, we have a wide range of damp proofing and chemical DPC products to protect against or to cure these problems:

Rising damp

Rising Dampness can develop within walls due to the lack of an effective damp proof course or the omission of damp proofing during earlier construction.

When curing Rising Damp we use a chemical damp proofing product that is injected into the masonry to create a new chemical DPC and stop rising damp. Also damp proofing membranes, waterproofing additives and pre mixed renders to be applied onto the walls after the new chemical DPC has been inserted.

The method of installing the damp proof course is by pattern drilling the masonry at the base of the wall and injecting a specially formulated solution of Universal damp solutions silicon-ate injection fluid or our DPC cream, until the entire depth is fully impregnated.

Universal damp solutions chemical injection process, is low odour and cures within the masonry wall to form and impervious barrier to rising dampness, which prevents moisture rising from the ground into the treated walls. Adjacent abutting walls are isolated using a vertical damp proof course.

Penetrating damp

Penetrating damp is usually caused by the following: Porous Walls — Ageing bricks lose the ability to keep out rain penetration. Spalled Bricks & Degraded Mortar — Damage to brickwork allows water to penetrate. Building Defects — Defective guttering and downpipes, roof damage, dilapidated or poorly installed windows.

Penetrating damp – chemical damp proofing products to include silicone water repellents, damp proof paint, and waterproofing membranes, all forms of damp proofing products that externally protect the structure from water penetrating into the substrate of the building.

How to Identify Penetrating Damp

There are a number of signs to help determine if your property has penetrating damp, which include:

Damaged internal decoration – damp, discoloured tidemarks in line with external ground level on internal surfaces.
Damaged Plaster – blistering, salting and disintegration.
Rotting skirting boards, floor timbers – wet rot decay.
Localised dampness – Random damp patches at high and low level that do not dry out
Mould Growth – musty smell, spoilt decoration.

What Causes Penetrating Damp?

There are two main causes.

Building Defects – defective roof coverings, cracked brickwork, badly fitting windows/ door frames, faulty guttering and downpipes.

Lateral Penetrating Damp – caused when the external ground, abutting the wall is above internal floor level.