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.
Rising dampness may be found during a Building Survey, by tests carried out to the base of the walls, however in more severe cases of prolonged dampness, visible damp patches may appear, along with hygroscopic salts on the wall surfaces.
Effective treatment requires removal of the wall plaster to approximately one metre or higher (depending on the salts within the masonry and several other factors) along with the installation of a new damp proof course.
Damp Proofing Walls
How is a damp proof course installed?
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 Kenwood siliconate injection fluid or Kenwood DPC cream, until the entire depth is fully impregnated.
Kenwood Plc’s 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.
Used in conjunction with our specialist waterproof rendering system this provides a reliable and cost effective method of treatment.
The new damp proof course will prevent moisture rising and the masonry will begin to dry out, however due to the effects of ground salts, the walls will not dry out fully unless the existing plaster is removed and replaced using a salt retardant render, such as Kenwood’s Premix Waterproof Rendering System.
The benefits of the Kenwood’s Waterproof Rendering System ensure perfectly batched renders where the proportions of sand, cement, lime and waterproofers are computer controlled in factory conditions, and not determined by site operatives ‘mixing’ the products together from various bags of material. Following the application of the waterproof rendering system, we apply a top coat skim plaster to provide a smooth plaster finish.
Where high ground levels are present, Kenwood SWS Tanking system may also be required in conjunction with the chemical damp proofing.
Comprehensive range of services to home owners
We offer comprehensive range of services to home owners and property professionals or can work with your builder to undertake the specialist damp proofing as part of your overall refurbishment.