Excuse Me!
Did someone suggest that a flat PC roof didn’t need any other reinforcement? If this is true I would like to see any evidence supporting that.
My apology if this has been covered.
I would love for it to be true, but I doubt you could get an engineers stamp on it.
If the lower part were domed I’d be way less skeptical.
Janosh
From:
Sent: Saturday, September 12, 2009 8:59 PM
To:
Subject: [papercreters] Re: Papercrete roof?
Good question. I am gathering info too to build a flat roof home, and the roof must be (mostly) usable as a terrace. I do not gather that only papercrete will be strong enough on it's own - but rather will have to make a sandwich of first pour of (rebar) reinforced concrete, then papercrete, and another layer of concrete. Indeed sounds like a lot of effort and not sure if it's worth the effort.
I did some remodeling work on my current house 5 years ago (before I knew about papercrete) and made a poured concrete flat roof, 125mm thick, this is also for rain water harvesting to a 5000 liter tank.
I put 12 regular glass blocks into this roof, spacing between each is about 2 meters, these provide good daylighting with very little heat gain. Two of these glass blocks leaked a bit for awhile, but interesting was they grew "stalactites" and stopped leaking. I even put 1/2" PVC pipes (36 meters long total) into the roof for a double function, warm the water and cool the roof. It does work - makes the water a bit warmer for bathing - but I am not sure how much it sheds the heat from the roof. This area for sure though is the coolest part of the house.
I live in the rainy tropics, just south of
In any event I'll be using papercrete where possible, and if it looks like on the roof for a terrace is not a good idea - please do run some comments here, - glad to trade any insights / ideas.
Cheers to All.
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