Great article. As I am involved with a roof safety company I can not agree more with you Julie - "If you do not feel confident doing the job then get a professional to do it for you".

There is no point losing your life just to save a few dollars.

Another option is installing some anchor points or ladder brackets on your roof, at least this will provide you with protection. But if you are not confident, do not go up on your roof. http://www.sydneyanchorpoints.com.au/

Very interesting analysis. It really shows the importance of using good water purifiers.

Love the ladder bookshelf in that second picture. Great use of space as well, as you could use behind it as storage.