Investigation & testing of building & civil engineering materials & components Charles Darley Associates are independent materials testing consultants. Expertise is available in a wide range of materials and components including blockwork, cladding, reinforced and pre-stressed concrete, flooring, glazing, plaster, render, roofing systems and screeds. Dr Darley specialises in failure investigation, appraisal of latent defects and deterioration and assessment of physical damage.

Having nearly 40 years' experience in the construction industry, working extensively with kitchen and bathroom installations, joinery, structural waterproofing and general construction in both domestic and commercial environments. Reporting on issues with floor finishes affected by incorrect screed specification or installation, caused by excessive moisture content, incorrect curing or incorrect use of expansion joints resulting in the failure of the flooring. Experienced in the design and laying of liquid floor screeds in domestic and commercial properties for nearly 25 y...