Gwynne Anthony 2020

ART506 Dissertation 2019. Anthony Gwynne . 59 Under the requirements of the inspection schedule, the builder notified building control of his intention to lay a new concrete floor. Unfortunately, this is first time building control become aware of this project and visited the site. At this point in time it become apparent that the building has traditionally built solid stone walls that should be upgraded using vapour permeable materials. However, the builder proposed to upgrade using inappropriate non-vapour permeable materials and works had already commenced on site indicated in F igures 31 and 32, as follows: • Steel frame erected to support some of the roof areas due to the unstable condition of some of the stone walls. • Original floors had a new plastic damp proof tanking membrane laid over the floor area (and up the original walls) to prevent the ingress of damp into the building (Figure 31). • High density polyisocyanurate insulation board (PIR) and 2000g damp proof membrane was laid over the floor tanking system ready to receive 100mm thick concrete floor slab (Figure 32). • Plastic tanking system had been fixed to the internal face of the ground floor to prevent damp ready to receive a high density polyisocyanurate insulation board fixed between timber stud walls fixed around the perimeter (Figures 31 and 32). Summary Although building control have enforcement powers to require the use of non-vapour permeable insulation and replace it with vapour permeable materials it is very difficult to enforce as explained in case study 1. At this point building control will not be aware of the planning consent requirements and building control cannot require detailed plans or specification as the works were submitted on a Building Notice (Appendix G) .