Mr. Dennis Keeley:

I am sure that people will have seen green walls throughout the city. The issue with green walls is fire spread. Again, there are, and can be, control measures placed on how green walls are constructed and, in particular, on how they are managed in terms of drying out, etc. but green walls are a means for fire spread.

The next theme is car parks. We have historical evidence both in this country and abroad of the implications of a car fire, particularly in an underground car park that is enclosed. We are looking at the strategies around ventilation but particularly at sprinkler systems and their use within underground car parks. I have mentioned the next theme of nursing homes, which is similar.

The next theme is the evacuation and ventilation strategies in residential buildings. This is an extensive theme that concerns the strategies and evacuation as buildings get higher, and how that is managed and how it works. It is the number of staircases that are available. It is the use of sprinklers within residential buildings. It is conflict because one wonders whether, as we go higher, we can provide that level of comfort for both people who seek to evacuate but also firefighters who need to go in, fight the fire and deal with the incident. That aspect also goes for the next theme, which is the vertical escape and fire fighting in residential buildings. That is on the premise of our process and procedures for evacuation as opposed to staying in place, which is a different strategy.

The next theme is common non-complex building types and scope. I touched on that issue by saying that the TGD B guidance will not cover all of the various building types. There will be buildings that will be outside the scope of the TGD B, which we believe should be incorporated. In particular, these are issues between buildings of between 30 m and 60 m, and buildings that are over 60 m in height and the differentiation between them.

The last theme is separate guidance, which is similar to the last theme. This theme refers to high-rise buildings that are greater than 60 m in height. That separate guidance would fall from some of the other bullet points that I have mentioned previously.