prior to the 1930s ties were not galvanised.
W.C.P.P offer a full remedial works service. This includes all damp treatments, timber treatments and cavity wall-tie replacement. We can carry out a free survey to assess the extent of the works required, these surveys are recognised by all banks and building societies and can be used for selling and purchasing purposes. We offer a full guarantee service with remedial works which again is recognised by all banks and building societies.
Although the damage caused by damp can be serious, the cause of damp, unless the property has simply been built in the wrong place, is usually relatively obvious and straightforward to put right.
Condensation is moisture in the air inside the house, which can’t get out and leads to mouldy patches on walls and ceilings. This can be fixed by improving the ventilation. With both condensation and penetrating damp, once the cause is isolated, a dehumidifier will help dry the affected areas out before fixing the damage and redecorating.
Upon installing a chemical damp proof course, specialist replastering of the wall is essential to ensure there is no hydroscopic salts are present. Treatment involves removal of the skirting boards and wall plaster on the walls. Usually the plaster is removed to a height of approximately one metre, however depending on the salts within the masonry and several other factors, the height of the necessary replastering may be increased and will be individually specified once our surveyor has carried out an inspection of your property.
The purpose of specialised replastering is designed to provide a salt retardant, waterproof render to combat the effects of the ground salts in the masonry and provide a dry internal finish which would be smoothed over by our technicians with a top coat skim to create a smooth finish ready for decoration.
Cavity Wall Ties
The absence of effective wall ties will ultimately result in failure of a walls structural integrity and its probable collapse under high wind conditions.
There are two problems with corroding wall ties. The ties can corrode in the cavity and break such that the outer and inner leaves are no longer tied together. If this occurs, there is a distinct risk of the outer leaf collapsing, especially under high winds which cause suction on the face of the wall.
To determine the spacing of the existing wall ties, the wall is inspected with the aid of a metal detector. To establish wall tie type cavity width and the extent of any corrosion, a visual inspection within the cavity is carried out with the aid of a boroscope and/or by the removal of the mortar bed and/or brick adjacent to a wall tie location.
We can then give recommendations for the correct remedial actions to be taken.
Westcountry Building & Preservation
17 Hillcrest Road