Hi all, I have found the info regarding the Parapet fascia very informative and interesting. Thank you, I amazed at your talent and artistry. i have been working with cement for many years, did sculpting and cement murals. I just want to say this...the polystyrene is not an option for this application. I have used it indoors....as a cornice. But the slightest bump if you dust, or whatever, dents it! I do not think it will last outside...if you get storms like we do in South Africa, it won't. What might be an option is to work with a 'new age' cement mix where you add glass fibre as an aggregate....and add fly ash or even polystyrene as an aggregate to make the casting lighter? I think there is another product on the market and it is a fibre cement fascia....but I am unsure as to the cost. The polystyrene ones are very cheap compared to cement products and I think this is even more expensive. No, my opinion is that the parapet fascias cast 'in sito' or pre casted are a craft and an artform and worth paying for. Stunning work, keep it up...and thank you for sharing the 'how to'....just shows why we want to pay to have it done!