Gwynne Anthony 2020

ART506 Dissertation 2019. Anthony Gwynne . 80 instead of more expensive sheep’s wool insulation (www.lime.org.uk) . Question 17: Did the time taken to complete the works influence the materials used? (assuming vapour permeable solutions take longer ). The results indicate that 67% of building professionals claim that the time taken to complete the work did not influence the use of materials used, 27% claim they did and 7% declined to comment. Comments: It is clear from the results that time taken to complete the works in over two thirds of cases did not influence the use of materials used. This is supported in question 12 to 14 of this survey that 87% of building professions claim to have used a vapour permeable solution that is more time consuming to apply and the option of non-vapour permeable solution that is quicker to apply were not used in most cases. This is significant to this survey as in question 9 to 11, only 53% of planning/listed building/building control applications had conditions requiring the use of vapour permeable solutions and 87% of building professionals chose to use them . Question 18: Were there any problems evident after the works were carried out? (for example, damp ). The results indicate that 67% of building professionals claim that there were no problems evident after the works were carried out and 33% claim there were. It’s interesting to note that in survey question 2, one job had commenced, nine were in progress and only four had been completed. Out of the four jobs completed, three complained of actual problems one of which were related to the performance of the vapour permeable solution other than poor detailing, slight shrinkage cracking of render and discolouration of lime wash. It is clear from the results of the complete works that vapour permeable solutions perform well, however, further research would be required to establish if the other projects in progress perform the same.