4 According to Mills & Hassall's statement of claim against Austpeak, Mr Tobias, a director of Austpeak, instructed Carnegie to refer the difficulty to Saraceni. Mr Cordes of Carnegie faxed "Technical Query No 50" to Saraceni on 22 April 2006 raising the problem, offering certain solutions and seeking advice. In the follow-up "Technical Query No 55" of 27 April 2006 Mr Cordes attached a drawing and asked Saraceni to confirm the new method of construction. It matters not for the purpose of this appeal whether Carnegie produced that drawing alone, or in response to suggestions from Saraceni. Mr Tomsett of Saraceni, one of the structural engineers involved in the project, responded by sending the facsimile back with the notation "Looks good". On their face, both facsimiles were copied to Mills & Hassall. The awning was subsequently constructed by Mills & Hassall. It appears uncontroversial that it was constructed in accordance with the new design. On 19 October 2006, it collapsed after some sheeting material was placed on it.