obinsons Preservation LtdThe source of dampness in buildings can be the result of one or combinations of several sources. The main sources of dampness are: -
Rising Damp:
Lack of an effective horizontal damp proof course (DPC) will result in rising damp. salt contamination by chlorides and nitrates will invariably occur with rising damp.Penetrating Damp: Lack of maintenance to buildings results in rainwater ingress. Leaking gutters/downspouts, poor pointing, porous walls, defective roofs and old external joinery are the sources
Condensation:
Usually accompanied by mould growth. Condensation is associated with poor ventilation and lack of adequate heating.
Hygroscopic Salts:
Hygroscopic (i.e. moisture attracting ) salts are usually associated with rising damp. However chimney breast, walls built with a strong acidic/alkali motar or historic structures are other sources of Hygroscopic Salts
Lateral Penetration:
Walls below ground level are subject to lateral penetration .the provision of Dry lining membranes can help provide dry surfaces
Inspection
Carried out by fully qualified surveyors ,Robinsons inspects the dampness considering all possible causes. Tests range from surface readings with a Protimeter to core drill samples using a Calium Carbibe meter. Wall plaster samples can be taken and laboratory tested for the present of Chlorides, nitrates and sulphates. .
Using modern equipment ( i.e. Continuous Environmental Monitoring System) we are able to measure moisture humidity, ambient and surfaces temperatures.
Report
A detailed report with companies observations will be provided. Recommendations and specifications will be provided for any necessary treatments.Treatments
All works carried out by Robinsons are by fully trained and experience technicians.
Vandex Injection Mortar is used for the treatment of Rising Damp. This material has a British Board Of Agrement Certificate. For Health and Safety, Vandex is odour free and non toxic.
For a survey and report please contact our office surveyors on 0161-872-3133
