Well the tin foil didn't work out very well. It said on the box that it was HEAVY DUTY but it was more flimsy than any foil I have ever seen. It wasn't going too badly until the box fell off the roof and the roll of foil got a little dinged. Then it wouldn't roll off at all. I kept trying with it but finally got mad and threw the whole thing down and went to Lowe's and got some of that foil insulation stuff. So tomorrow we will put that down and it should work fine. I do think that if the foil were really heavy duty like the rolls of Reynolds Wrap you get then this would have worked fine. I would have gotten some Reynolds Wrap and tried it this time but I have a papercrete student here now and can't be fooling around experimenting. I'll send some pictures when I learn how t use my new cell phone camera.
The Making of Papercrete DVD now available on Amazon.com
http://www.amazon.com/Making-Papercrete-Judith-Williams/dp/B0040ZNE9A/ref=sr_1_1?ie=UTF8&s=dvd&qid=1283998627&sr=8-1
Follow progress on the new project at http://www.papercretebyjudith.com/blog
More papercrete info at http://squidoo.com/papercretebyjudith
To: papercreters@yahoogroups.com
From: Spaceman@starship-enterprises.net
Date: Sun, 12 Sep 2010 08:21:07 -0600
Subject: Re: [papercreters]
A couple of articles I read said the effect is much worse with repeated wetting as that would cause the alkalinity to increase at the surface. If you pour all at once and seal it then there would be no repeated wetting. If you're going to be doing the roof over several days then that might fall under repeated wetting. While the cement in pc does not flow away with the water, the evaporating water does leave surface deposits.
You could coat the foil with a water barrier, or maybe lay a sheet of plastic on top to keep it from contact with the pc.
Or you could just go ahead and then report the results after a few weeks/months. Whether it works or not would be valuable knowledge, and even if it fails you probably haven't lost much other than the time and spray adhesive.
Congrats on getting the DVD ready. It's a good guide showing the steps necessary to make a pc structure. I enjoyed watching it.
On 9/12/2010 7:39 AM, JUDITH WILLIAMS wrote:
You could coat the foil with a water barrier, or maybe lay a sheet of plastic on top to keep it from contact with the pc.
Or you could just go ahead and then report the results after a few weeks/months. Whether it works or not would be valuable knowledge, and even if it fails you probably haven't lost much other than the time and spray adhesive.
Congrats on getting the DVD ready. It's a good guide showing the steps necessary to make a pc structure. I enjoyed watching it.
spaceman All opinions expressed or implied are subject to change without notice upon receipt of new information. http://Starship-Enterprises.Net
On 9/12/2010 7:39 AM, JUDITH WILLIAMS wrote:
My plan is to stik to the low amoutof cement, maybe even use less that 1/2 bag per load. That's what I did om the other roof and it is plenty hard enough. Do you think the foil will be damaged even with one encounter with wet papercrete? I think I have enough foil to layer it.
I can't remember where I read that a reflective surface will give 70% of the heat back to the room even if it is partially covered by something. Well it's just an experimant and I need something to go between the reed fence and the slurry anyway so thought I would try the foil.
The Making of Papercrete DVD now available on Amazon.com
http://www.amazon.com/Making-Papercrete-Judith-Williams/dp/B0040ZNE9A/ref=sr_1_1?ie=UTF8&s=dvd&qid=1283998627&sr=8-1
Follow progress on the new project at http://www.papercretebyjudith.com/blog
More papercrete info at http://squidoo.com/papercretebyjudith
To: papercreters@yahoogroups.com
From: Spaceman@starship-enterprises.net
Date: Sat, 11 Sep 2010 22:13:42 -0600
Subject: Re: [papercreters]
I can relate, I've done papercrete in the dark more than once. It wasn't much fun.No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.851 / Virus Database: 271.1.1/3129 - Release Date: 09/11/10 12:34:00
Portland cement is alkaline and can corrode aluminum, especially with repeated wetting. My aluminum ladder has surface etching where pc has stuck to it. You might consider a protective coating on top of the aluminum since foil is so thin and might get holes in it quickly.spaceman All opinions expressed or implied are subject to change without notice upon receipt of new information. http://Starship-Enterprises.Net
On 9/11/2010 8:16 PM, JUDITH WILLIAMS wrote:I'm sure many of you know what it feels like when it's 4 in the afternoon and you've been working for hours and you still have a half a mixer load of slurry to get rid of. That's what happened to me today. It's after 8 and I just got home. Did the last of it practically in the dark. But I am almost ready to start the roof. I have someone coming tomorrow evening to work with me on Monday and Tuesday and I am determined to get this roof done.
So anyway, I tried putting some joint compound in the slurry that will be going on the wall where the viga is. It seems to be sticking very well. I'll know for sure when I check on it tomorrow. I used some reed fencing for the ceiling and will put aluminum foil over that to reflect heat back into the room. Not sure yet how it will work putting the foil on top of the reed fencing. I bought a couple of cans of spray adhesive and thought I would spray as I roll out the foil. I just hope there is no wind.
So now it's time to have a little supper and collapse into bed.
The Making of Papercrete DVD now available on Amazon.com
http://www.amazon.com/Making-Papercrete-Judith-Williams/dp/B0040ZNE9A/ref=sr_1_1?ie=UTF8&s=dvd&qid=1283998627&sr=8-1
Follow progress on the new project at http://www.papercretebyjudith.com/blog
More papercrete info at http://squidoo.com/papercretebyjudith
No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.851 / Virus Database: 271.1.1/3129 - Release Date: 09/11/10 12:34:00
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