Building Envelope Investigations
Cavity Wall Investigations
Masonry walls can be investigated as part of a durability survey or to gain condition information for an acquisition or change of use. The number, position and condition of wall ties in cavity walls can be determined by undertaking a wall tie survey using electromagnetic detection and an endoscope (aka a boroscope) inserted into the cavity.
Masonry sampling and testing can also be undertaken. Brick samples are carefully removed from representative locations and tested to determine compressive strength. Mortar is sampled and tested in the laboratory to determine mortar designation.
Moorhead Richardson can provide the inspection, testing and sampling services and will issue a comprehensive report detailing the investigation findings.
Leaks in flat roofs can be located using our wet roof leak detector. The equipment is suitable for all roofs constructed with non-conductive insulation materials. The equipment is suitable for use on hot melt, asphalt and single ply roofing membranes. Any detected leaks are circled on the roof surface using waterproof crayon and are then photographed, measured and marked on to a roof plan drawing.
Following the completion of siteworks, all retrieved samples are tested in a UKAS accredited laboratory, where applicable. On receipt of the test results, Moorhead Richardson will prepare a report. The report may be purely factual, if requested by the client, to allow the client’s engineers to make their own interpretation of the investigation findings. More usually, Moorhead Richardson will provide an interpretative report that assesses the investigation findings in relation to current British Standards, codes of practice and industry guidance.