It often happens that on the perimeter walls of a basement or a basement in direct contact with the ground surrounding the house, more or less serious and evident problems arise, caused by humidity.

If the side of the wall in contact with the ground was, at the time of construction or subsequently, correctly waterproofed, it is evident that the humidity present in the wall is exclusively due to rising damp; otherwise, if there is no external lateral waterproofing, it has not been made in a workmanlike manner or has been inadvertently damaged, the perimeter walls in addition to being in direct contact with the ground in the part of the foundations, are in contact with the ground also with the external side of the wall, consequently absorbing the water present in it.

The main cause of lateral thrust humidity or lateral infiltration of the walls, arises in fact, from damp sources which, being beyond the walls, somehow manage to overcome them, causing humidity to enter the domestic environment.

The problem exposed is obviously not constituted by the humidity outside, constituted by the rain, the proximity of the house to watercourses, broken sewers, continuous irrigation or simply by direct contact with the damp soil instead from the inability of the perimeter walls to rise like safe waterproof barriers between the outside and the inside of the basement.

Being faced with problems in underground rooms linked simultaneously to the humidity in contact with the ground, to the lateral infiltrations of water and/or humidity and to the rising damp, means dealing with the most complex cases to solve those relating to the humidity of buildings.

In this case, the rising humidity is added to the lateral pushing humidity.

Products and technologies to use

Among the possible remediation measures from the problems deriving from the humidity in a basement, linked simultaneously to the lateral infiltrations of water, to the humidity in contact with the ground, to the humidity of rising damp and to the biodeteriogenic proliferations (mold, moss and lichens), to be evaluated and diagnosed always and in any case on a case by case basis, the combination of the following technologies and product cycles to be applied is effective and decisive.

BLOCKING OF WATER INFILTRATIONS WITH HYDRO-EXPANSIVE POLYURETHANE RESINS

 

 

SYNTECH HAG FLEX

Mono-component semi-flexible, expanding (increases its initial volume of about 10 times) polyurethane resin, free from solvents, perfect for sealing small and large water leaks in the concrete or in solid masonry in general by injection. Perfect for filling and sealing small cavities, joints and discontinuities subject to movement.

SYNTECH HAG FLEX

Mono-component semi-flexible, expanding (increases its initial volume of about 10 times) polyurethane resin, free from solvents, perfect for sealing small and large water leaks in the concrete or in solid masonry in general by injection. Perfect for filling and sealing small cavities, joints and discontinuities subject to movement.

Technical Data Sheet

Safety data sheet A

Safety data sheet B

 

 

SYNTECH HAG ECO

Mono-component, enabled for contact with drinking water, semi-flexible, expanding (increases its initial volume of about 20 times) polyurethane resin, free from solvents, perfect for sealing small and large water leaks in the concrete or in solid masonry in general by injection. Perfect for filling large voids and loose stone foundations inside the walls.

SYNTECH HAG ECO

Mono-component, enabled for contact with drinking water, semi-flexible, expanding (increases its initial volume of about 20 times) polyurethane resin, free from solvents, perfect for sealing small and large water leaks in the concrete or in solid masonry in general by injection. Perfect for filling large voids and loose stone foundations inside the walls.

Technical Data Sheet

Safety data sheet A

Safety data sheet B

 

 

SYNTECH HAG CLEANER

Cleaning agent specific for the necessary equipment during operations of injections to stop the infiltration of water in the buildings. Oily rinsing detergent, low toxicity, high solvent capacity for non-hardened polyurethanes, to clean and lubricate the internal pumping hydraulic circuits of both manual and electric pumps. It replaces acetone, methylene chloride and other detergents commonly used.

SYNTECH HAG CLEANER

Cleaning agent specific for the necessary equipment during operations of injections to stop the infiltration of water in the buildings. Oily rinsing detergent, low toxicity, high solvent capacity for non-hardened polyurethanes, to clean and lubricate the internal pumping hydraulic circuits of both manual and electric pumps. It replaces acetone, methylene chloride and other detergents commonly used.

Technical Data Sheet

Safety data sheet

 

 

SYNTECH HAG INIETTORE 120

Rubber and steel injector, to be inserted at the cracks, fissures, loose stone foundations, joints, cavities, etc. to be waterproofed, using hydro-expansive polyurethane resins SYNTECH H.A.G. ECO and SYNTECH H.A.G. FLEX, specific for immediately stopping the infiltration of water. Equipped with " flat head " with non-return valve, it is for use in combination with SYNTECH H.A.G. CONNETTORE.

SYNTECH HAG INIETTORE 120

Rubber and steel injector, to be inserted at the cracks, fissures, loose stone foundations, joints, cavities, etc. to be waterproofed, using hydro-expansive polyurethane resins SYNTECH H.A.G. ECO and SYNTECH H.A.G. FLEX, specific for immediately stopping the infiltration of water. Equipped with " flat head " with non-return valve, it is for use in combination with SYNTECH H.A.G. CONNETTORE.

Technical Data Sheet

Safety data sheet

 

 

SYNTECH HAG INIETTORE 170

Rubber and steel injector, to be inserted at the cracks, fissures, loose stone foundations, joints, cavities, etc. to be waterproofed, using hydro-expansive polyurethane resins SYNTECH H.A.G. ECO and SYNTECH H.A.G. FLEX, specific for immediately stopping the infiltration of water. Equipped with " flat head " with non-return valve, it is for use in combination with SYNTECH H.A.G. CONNETTORE.

SYNTECH HAG INIETTORE 170

Rubber and steel injector, to be inserted at the cracks, fissures, loose stone foundations, joints, cavities, etc. to be waterproofed, using hydro-expansive polyurethane resins SYNTECH H.A.G. ECO and SYNTECH H.A.G. FLEX, specific for immediately stopping the infiltration of water. Equipped with " flat head " with non-return valve, it is for use in combination with SYNTECH H.A.G. CONNETTORE.

Technical Data Sheet

Safety data sheet

 

 

SYNTECH HAG CONNETTORE

Specific accessory for use in conjunction with the flat head injectors, for sealing the infiltration of water through the use of specific water-reactive polyurethane resins SYNTECH H.A.G., with hand and electrical pumps.

SYNTECH HAG CONNETTORE

Specific accessory for use in conjunction with the flat head injectors, for sealing the infiltration of water through the use of specific water-reactive polyurethane resins SYNTECH H.A.G., with hand and electrical pumps.

Technical Data Sheet

Safety data sheet

 

 

SYNTECH HAG POMPA AZ-PT/B

Manual single-piston pump, self priming, simple effect, to inject polyurethane and epoxy fluid resins. The maximum pressure that can be delivered by the pump is 40 bar. The flow rate is 1 litre in 55 cycles.

SYNTECH HAG POMPA AZ-PT/B

Manual single-piston pump, self priming, simple effect, to inject polyurethane and epoxy fluid resins. The maximum pressure that can be delivered by the pump is 40 bar. The flow rate is 1 litre in 55 cycles.

Technical Data Sheet

Safety data sheet

TREATMENT OF WALLS WITH DETERGENT AND SANITIZING PRODUCTS WITH ANTI-MOLD

 

 

CONSILEX MUFFA CLEANER

Transparent, ready-to-use cleaning agent, for the safe removal of scale blackish incrustations from moulds and biodeteriogenic manifestations, as well as for the revitalising renewal of wooden surfaces.

CONSILEX MUFFA CLEANER

Transparent, ready-to-use cleaning agent, for the safe removal of scale blackish incrustations from moulds and biodeteriogenic manifestations, as well as for the revitalising renewal of wooden surfaces.

Technical Data Sheet

Safety data sheet

 

 

CONSILEX MUFFA REMOVER

Solution based on quaternary ammonium and peculiar active principles for the elimination of biodeteriogenic settlements: moulds, fungi, mosses, algae, lichens, bacteria, etc. from masonry works, in full respect of ecological protocols, with particular reference to biological building interventions and the restoration of vintage buildings and monuments. Over 150,000,000 square metres reclaimed, and 30 years of history, ensure product quality and effectiveness.

CONSILEX MUFFA REMOVER

Solution based on quaternary ammonium and peculiar active principles for the elimination of biodeteriogenic settlements: moulds, fungi, mosses, algae, lichens, bacteria, etc. from masonry works, in full respect of ecological protocols, with particular reference to biological building interventions and the restoration of vintage buildings and monuments. Over 150,000,000 square metres reclaimed, and 30 years of history, ensure product quality and effectiveness.

Technical Data Sheet

Safety data sheet

REALIZATION OF AN OSMOTIC CEMENTITIOUS LAYER WITH RESISTANT THICKNESS IN COUNTERTHRUST

 

 

OSMOCEM RD

Osmotic fibre reinforced two-component cement mortar, based on hydraulic binders, modifying resins and flexibilisers, superpozzolanic reactive fillers, for the preparation of adhesive mixtures, easy to spread, which after hardening, provide an effective waterproofing protection, both in direct push and in negative pressure, with high capacity of deformation.

OSMOCEM RD

Osmotic fibre reinforced two-component cement mortar, based on hydraulic binders, modifying resins and flexibilisers, superpozzolanic reactive fillers, for the preparation of adhesive mixtures, easy to spread, which after hardening, provide an effective waterproofing protection, both in direct push and in negative pressure, with high capacity of deformation.

Technical Data Sheet

Safety data sheet A

Safety data sheet B

 

 

SANAREG

Silane-based water-repellent emulsion, penetrates the capillary pores of mineral substrates and reacts with the hydroxyl groups on the surface forming an invisible water-repellent barrier that does not allow water to penetrate but which leaves the breathability to water vapor unaltered. Specific for preliminary treatments against the saline efflorescence of masonry bodies, in green building interventions and in the restoration of period and monumental buildings.

SANAREG

Silane-based water-repellent emulsion, penetrates the capillary pores of mineral substrates and reacts with the hydroxyl groups on the surface forming an invisible water-repellent barrier that does not allow water to penetrate but which leaves the breathability to water vapor unaltered. Specific for preliminary treatments against the saline efflorescence of masonry bodies, in green building interventions and in the restoration of period and monumental buildings.

Technical Data Sheet

Safety data sheet

APPLICATION OF A COMPLETE CYCLE OF DEHUMIDIFYING, RESTORING, ANTI-CONDENSATION PLASTERS

 

 

UNTERSANA

Dehumidifying adhesive compound for the construction of anchoring scratch coats, for the subsequent application of normal plaster (INTOSANA), dehumidifying (SANATIGH) and light (SANAWARME and CALEOSANA), for new buildings, in existing buildings, for ecological building interventions and in the restoration of vintage buildings and monuments.

UNTERSANA

Dehumidifying adhesive compound for the construction of anchoring scratch coats, for the subsequent application of normal plaster (INTOSANA), dehumidifying (SANATIGH) and light (SANAWARME and CALEOSANA), for new buildings, in existing buildings, for ecological building interventions and in the restoration of vintage buildings and monuments.

Technical Data Sheet

Safety data sheet

 

 

CALEOSANA

Macroporous, ecological, high-thermo-insulating performance indoor and outdoor plaster, with density 800 kg/m³, based on hydraulic lime, botticino, siliceous aggregates, kaolin, calcium caseinate, Vichy salt, tartaric acid, expanded granular clay, natural fibres, granular perlite. Its peculiar characteristics make it suitable for dehumidification, for heat and humidity treating buildings and walls, in ecological building interventions and in the restoration of vintage buildings and monuments.

CALEOSANA

Macroporous, ecological, high-thermo-insulating performance indoor and outdoor plaster, with density 800 kg/m³, based on hydraulic lime, botticino, siliceous aggregates, kaolin, calcium caseinate, Vichy salt, tartaric acid, expanded granular clay, natural fibres, granular perlite. Its peculiar characteristics make it suitable for dehumidification, for heat and humidity treating buildings and walls, in ecological building interventions and in the restoration of vintage buildings and monuments.

Technical Data Sheet

Safety data sheet

 

 

SANASTOF

Premixed mineral composition based on natural hydraulic lime, micro-silicas with pozzolanic activity, selected aggregates, high tenacity microfibres, lightweight heat-insulating low elastic modulus aggregates. It is used for smoothing and levelling, both indoors and outdoors. It is perfectly compatible with multiple supports: lime-based plasters, lime-cement, cement mortars, concrete, porous stone, bricks. Its characteristics make it particularly suitable in ecological building works and in the restoration of vintage buildings and monuments. The maximum particle size of the aggregate is 0.9 mm.

SANASTOF

Premixed mineral composition based on natural hydraulic lime, micro-silicas with pozzolanic activity, selected aggregates, high tenacity microfibres, lightweight heat-insulating low elastic modulus aggregates. It is used for smoothing and levelling, both indoors and outdoors. It is perfectly compatible with multiple supports: lime-based plasters, lime-cement, cement mortars, concrete, porous stone, bricks. Its characteristics make it particularly suitable in ecological building works and in the restoration of vintage buildings and monuments. The maximum particle size of the aggregate is 0.9 mm.

Technical Data Sheet

Safety data sheet

 

 

SANAXIL P - THERM

Stabilized potassium silicate paint, thermo-reflective with chemical adhesion, with excellent covering power (class 1 according to EN 13300 for a yield of 6/7 m2/l). Formulated with polymeric dispersion in saponifiable matter, hollow spheres, pigments and inorganic fillers and additives in a content that guarantees the fulfilment of physical parameters such as: permeability, water repellency, CO2 diffusion, etc.

SANAXIL P - THERM

Stabilized potassium silicate paint, thermo-reflective with chemical adhesion, with excellent covering power (class 1 according to EN 13300 for a yield of 6/7 m2/l). Formulated with polymeric dispersion in saponifiable matter, hollow spheres, pigments and inorganic fillers and additives in a content that guarantees the fulfilment of physical parameters such as: permeability, water repellency, CO2 diffusion, etc.

Technical Data Sheet

Safety data sheet

DESIGN OF CORRECT VENTILATION AND PREPARATION OF A SUITABLE DEHUMIDIFIER

A dehumidifier

is a tool that allows you to dehumidify the air within a certain closed or poorly ventilated area, or stabilize the temperature below the so-called “dew point”, so as to prevent it from becoming condensate with all developments negative effects that condensation can subsequently cause.

The operation varies according to the type of dehumidifier, considering however that the water vapor present in the air decreases with decreasing temperature; usually the dehumidifiers inside them have a coil in which a coolant flows, when activated, the air passes inside this instrument and the water vapor condenses around the coil, absorbing the water and causing it to fall inside a collector to be subsequently disposed of.
One thing to note is that the dehumidifier does not lower the temperature inside a room, but on the contrary stabilizes it.

The final part of the dehumidifier, or another coil, has a higher temperature, this implies that after the passage of air inside the dehumidifier and after the water vapor has been absorbed, the air will continue its passage on the coil where it will be heated and then put back into circulation in the room.