Anyone Build With Rastra ICF Forms?

 
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Old 07-14-2010, 02:11 PM   #1
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Anyone Build With Rastra ICF Forms?


http://www.rastra.com/index.html

I am bidding a project that specs Rastra forms due to their recycled content.

I don't like the way these things look, and thought I'd see if anyone has experience with these.

My intent at this point is to talk the Architect into allowing us to use BuildBlock.

The shipping alone for Rastra will be more $$ than all the BB forms I will need.
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Old 07-14-2010, 02:16 PM   #2
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Re: Anyone Build With Rastra ICF Forms?


ive never hear of this, is it a form of building materials? hhhhhmmmmm, where are you located maybe its local to where you are located

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Old 07-14-2010, 02:19 PM   #3
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Re: Anyone Build With Rastra ICF Forms?


Quote:
Originally Posted by tgeb View Post
http://www.rastra.com/index.html

I am bidding a project that specs Rastra forms due to their recycled content.

I don't like the way these things look, and thought I'd see if anyone has experience with these.

My intent at this point is to talk the Architect into allowing us to use BuildBlock.

The shipping alone for Rastra will be more $$ than all the BB forms I will need.
I was not familiar with them, but have you checked to see if any competitor product on the East coast?
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Old 07-14-2010, 02:23 PM   #4
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Re: Anyone Build With Rastra ICF Forms?


Here is a competitor with 10% recycled material

http://www.measureformeasurehome.com/Logix.html
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Old 07-14-2010, 02:24 PM   #5
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Re: Anyone Build With Rastra ICF Forms?


Here is another with 85% recycled

http://www.millenniumblokicf.com/
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Old 07-14-2010, 02:25 PM   #6
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Re: Anyone Build With Rastra ICF Forms?


Apex quotes 90% recycled

http://www.apexconsys.com/index.cfm?...ge=STACKING-UP
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Old 07-14-2010, 03:19 PM   #7
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Re: Anyone Build With Rastra ICF Forms?


Thanks #53.

Those are similar in design to the ones they have speced.

Some of my issues with them is the "waffle" type concrete core is very difficult to get complete concrete fill in due to the configuration of the voids. A video on Rastra's own site showed the ends of a wall pour that the cells were not completely filled.

They don't have attachment points for finishes. Rastra recommends installing sheetrock with dabs of glue, then press into place.

No mention at all of how to do electrical.....these are a few of my concerns.
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Old 07-14-2010, 04:28 PM   #8
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Re: Anyone Build With Rastra ICF Forms?


Have the architect call me Tom.....I will see if I can clear it up for him. And no, I would not use Logix either. BuildBlock or RewardWall.
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Old 07-14-2010, 04:33 PM   #9
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Re: Anyone Build With Rastra ICF Forms?


I think the real benefit from Rastra is it's fire rating. The manufacturer says it won't burn.
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Old 07-14-2010, 06:00 PM   #10
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Re: Anyone Build With Rastra ICF Forms?


I think the architect is open to suggestions, at least he sounded so on the phone today.

He indicated that the Rastra has a high % content of Recycled polystyrene,
whereas most ICF's contain New polystyrene. That was his only argument for specing that product.

I am going to try and meet up with the closest BB dealer near me tomorrow, he'll let me have a couple pieces that I can use for samples, and he has some literature he can give me to pass along as well.

The builder I'm working with does not care......he just wants it to cost as little as possible.
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Old 07-15-2010, 09:39 PM   #11
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Re: Anyone Build With Rastra ICF Forms?


Rastra is expensive, but in my opinion a far superior finished product from any ICF that I have seen. Way better R_Value which will result in energy savings and lower bills. High recycled content of Polystyrene with portland cement makes it far more fire proof than standard ICF. They are quite heavy so stay in place with less bracing. They take half as much concrete to fill, you just have to pour a higher slump, slow it down a bit and vibrate. Not really that much different than any ICF for subs to deal with, just some preplanning for electrical chases etc. Don't drywall it, just finish with a thin veneer plaster, clay or gypsum plaster right onto the surface. It is a denser material and will take a fastener much better than standard ICF if you must drywall. Likewise for trim and other finish materials. Cabinets must be fixed to a cleat either surface mounted or let in. They are new and different but capitalize on ICF's (in general)strengths and minimize its weaknesses
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Old 07-15-2010, 09:54 PM   #12
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Re: Anyone Build With Rastra ICF Forms?


Last time I saw them was 10 years ago - it became real popular in AZ after they were on the Tucson This Old House project & the fire resistance

Veneer's was the preferred finish from those that used it as mentioned above - but they do have an issue with getting concrete to completely fill them as the form is all one piece with large sections of foam running through to connect / hold it together (If you know where the sections are - you could drill a 4" hole right through a poured wall with no issues - at least that's how it used to be)
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Old 07-16-2010, 02:44 AM   #13
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Re: Anyone Build With Rastra ICF Forms?


I just did a n extensive read on the Rastra system...and it appears like their number one claim is they are the "original" ICF.....maybe we should all drive Ford Model T's by that logic.

I doubt their claims for being a superior product...they need real numbers, including engineering, to back up their product.
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Old 07-17-2010, 10:15 PM   #14
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Re: Anyone Build With Rastra ICF Forms?


Well I dropped of a sample of the BB and some literature yesterday.

Put together a pretty solid quote and sent it off earlier today, the builder seems to be still interested, so we'll see where this goes.

I still have a few loose ends to deal with on my part of the job as a whole, but want to cut my losses if I am getting out of his budget range, should know soon whether I'm in or out.

From the research I have done, (Rastra's site), I doubt they would be happy with the finished product if they used those blocks.

I've done way too much leg work on this job, for a project that I don't know for certain is mine....
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Old 07-18-2010, 03:07 AM   #15
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Re: Anyone Build With Rastra ICF Forms?


I recently had a guy call me out to his home site, and I thought I was going to build his ICF home....only to get my time wasted. Precisely why I try to really screen potential customers now....no more freebies.
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Old 08-01-2010, 05:10 PM   #16
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Re: Anyone Build With Rastra ICF Forms?


Looks like I have them convinced on the BB, sending a contract out in the morning.

If they agree to my terms, I'll be working this job in a week or so....
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Old 08-01-2010, 06:35 PM   #17
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Re: Anyone Build With Rastra ICF Forms?


Did you put in a "consulting" fee for me Tom?

I really enjoyed talking with you a few weeks ago and I hope I was able to help.
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Old 08-01-2010, 07:14 PM   #18
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Re: Anyone Build With Rastra ICF Forms?


Quote:
Did you put in a "consulting" fee for me Tom?
Oh crap...you didn't get that envelope full of cash $$ I mailed out a couple weeks ago!

You'd better keep a close watch on your Mailman.

I enjoyed our conversation as well. Thanks for taking the time to share your knowledge. Trust me, I'll have more questions.


Think "Taper Top" and you'll know already what I'm going to ask...
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Old 08-15-2010, 05:08 PM   #19
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Re: Anyone Build With Rastra ICF Forms?


Start the dig this week.
Sent a copy of the layout to my local BB guy so we can be sure of the quantity of the various forms.

Deposit payment is in place.

It's rained enough the past few days to make a huge muddy mess of the job site, not telling what the dump sites look like. They won't take our trucks if the fill site is not dry enough to not track mud onto the roadway.

SNAFU

It will be an interesting project.....
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Old 08-15-2010, 05:34 PM   #20
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Re: Anyone Build With Rastra ICF Forms?


I hope you went with a form system similar to the Reward flat plate system since the "waffle" patterns lead to poor construction and a very nice path for varmits and the bugs that follow. Fortunately, the waffle forms are bulky and have high shipping costs.

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