Humidity restoration Restoration of walls attacked by capillar rising humidity and by saline crystallizations. By combined systems technology 1. Chemical cut 2. Anti-salt treatment 3. Surface dehumidification

Intervention method:

Build above the ground on the external or internal side or on both, and for all the area of interest, a chemical barrier against rising humidity by using the combined system barrier U-stop + Anti-salt scratch coat Spritz RS + dehumidifying plaster Into-Base.

Depending on the thickness of the wall and on the inclination of the holes (30°), the height of the latter from the working area is obtained.
Execution of the holes (it is possible to use an appropriate template).
-Hole inclination: 30°;
-Hole diameter: 22 mm;
-Hole depth: wall thickness –5 cm;
-Center-to-center of alligned holes: max. 11 cm;
Hydration and washing of the holes (they must be water washed completely)
Injection of U-stop mixture up to saturation

Total removal of the old plaster up to 1 m above the maximal humidity rising level and for at least 2 cm deep into the mortar bedding (joints between bricks or stones).
Mechanical dry cleaning of the exposed surfaces, and subsequent thorough removal of the construction waste and its transportation to the dump. Water wash under pressure the whole surface to be treated.
Application of anti-nitrate treatment (if necessary), after 8-10 days carry out a mechanical cleaning of the eventual salts which appear on the surface and accurately remove them from the base of the wall. Apply 5 mm of smoothing Spritz RS scratch coat, resistant to sulphates.
Application of lime-based dehumidifying plaster Into-Base in 2 layers with a max. thickness of 2 cm for each layer.
After the dehumidifying plaster has maturated (1 day for each mm of thickness), application of the dehumidifying slurry RD Lime.
In order to obtain a white or colored finishing, one can apply the highly transpiring lime coating GRANADA or the lime-based paint CADIX.


 

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1. Plaster Final application of dehumidifying plaster Into-Base 2. Waterproofing Waterproofing of the wall with the waterproofing slurry BZ6RS and subsequent preparation of the support with Spritz RS, a salt resistant anchorage roughcast 3. Injections Perforations along the outer perimeter and subsequent injection of U-stop, a chemical-physical barrier against capillar rising 4. Cove edge / rounded edge Realization of groves between the wall and the slab. Filling with BZ6RS and creation of a shell with structural mortar CR45RS 5. Waterproofing Waterproofing of the slab with the waterproofing slurry BZ6RS 6. Cap Concrete cap