In this video, I show a parapet wall that has thermal bridging, and is sweating. Recently we did a lot of other work on this warm roof, that is also a cold roof because of the way it has been constructed. As part of the process of trying to rectify the bad workmanship, we have also changed all the parapet wall coping stones to new coping stones, that have a better drip detail to them than the original coping stones. We also added ventilation to the cavity wall so that any moisture getting into the cavity wall, can escape. The original construction of the cavity wall was not correct and no cavity wall trays were fitted at the flat roof level as per building controls guidance. It was decided that to rebuild the top of the cavity To install a cavity wall tray was a step too far so ventilation was added instead. All of the above specifications To this cavity wall are not correct however without completely rebuilding the walls and making further adjustments to the flat roof the correct specifications could not be abided by. Previous videos on this roof show us fixing ventilation to the cold flat roof area previously this area had sweated and the decking had rotted. Another video on this flat roof shows us fixing an embodiment vent along the main area of the house.
#londonflatroofing
#roofsurveyor
Steven Dickinson
London Flat Roofing
07802300099
info@londonflatroofing.co.uk
Storm damaged roofs in London.
Roof surveys
Roof surveyor
Roof surveyor London
Roof surveys and inspections
Roof consultancy
Roof consultancy and roof condition reports.
Domestic roof survey
Flat roof condition report
Independent roof surveyor
Leak detection roofing
24 авг 2024