Gwynne Anthony 2020

ART506 Dissertation 2019. Anthony Gwynne . 4 Figure 31: Tanking system fixed to top of original floor and internal face of solid walls Figure 32: Modern insulation fixed over tanking system ready for concrete floor slab Case study 4: Damp in solid house walls renovated with hard non- permeable cement render and plaster finishes Figure 33: Traditional stone-built cottage renovated with hard cement roughcast render applied externally Figure 34: Efflorescence and damaging hard gypsum plaster finishes Figure 35: Rising damp and Crypto fluorescence pushing off hard gypsum plaster Figure 36: Black mould growth evident on internal plaster finishes Case study 5: Collapsed cob walling renovated with hard non- permeable cement render and internal plaster board finishes Figure 37: Cob walls renovated with non- permeable finishes. Figure 38: Collapse of the cob wall Figure 39: Collapse of the cob wall Conclusion of case studies Figure 40: Examples of inappropriate specifications and potential harm 5.0 Literature review Figure 41: Summary of literature review and summary of findings relevant to dissertation 5.1 Conclusion of the literature review 6.0 Questionnaires 6.1 Purpose 6.2 Ethics approval 6.3 Questionnaire distribution list 6.4 Questionnaire analysis Figure 42: Questionnaires returned Figure 43: Analysis of questionnaires returned Figure 44: Summary of questionnaire results 6.5 Conclusion of questionnaire analysis 7.0 Solutions to the problems 7.1 Do nothing 7.2 Make changes to the Approved Documents Figure 45: How vapour permeable guidance for ground floors could look in Approved Document C Figure 46: How vapour permeable guidance for insulated external walls could look in Approved Document C 7.3 Produce a National Compliance Guide Figure 47: Example of how the national compliance guide could be presented 7.4 Invest in technical solutions and information Hub Figure 48: Vapour permeable ground floor solution Figure 49: Vapour permeable external wall solution Figure 50: Vapour permeable internal wall solution Figure 51: Vapour permeable warm roof solution 8.0 Key findings 8.1 Background 8.2 The Problem