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ErVikingo
Registered Users
Posts:5
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| 10/01/2008 3:49 PM |
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I'm almost ready to give the go ahead to build my new house with ICF (1 storey 9200 sq ft gross). My main concern (right now anyway) is regarding the exterior finish options.
We want to have a glazed/flat feature less finish. Reading about EIFS and problems, I'm not sure I want to do ICF anymore.
Your help is appreciated. |
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Manfred
Registered Users
Posts:58
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| 10/01/2008 5:36 PM |
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EIFS stands for Exterior Insulating Finishing System. You don't apply an EIFS system per se over top an ICF wall. The typical EIFS's were design for stick framed homes. Ignorant and wrong installation of this system over top a stick framed exterior wall caused water intrusion into the perimeter wall cavity. With it came water damage, and mold mitigation. Due to the wrong repair and the oin going mold issues the insurance companies, especially in NC, excluded to insure a stick framed house built with EIFS.
In ICF there is no wall cavity! No chance of gross water intrusion. No chance of mold growth. Styrofoam lends itself to be the perfect marriage for any stucco system, whether it be old world (3 coat approach) or new world (synthetic).
Do a little more reading and you will find out that you came to the wrong conclusion. Best Regard. Manfred Knobel |
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ErVikingo
Registered Users
Posts:5
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| 10/01/2008 5:50 PM |
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Good news then Manfred. Many thanks!
The major concern is about which product to use and its durability. Heard people caution me regarding cracking of old world type stucco and others about other problems with modern products.
What is the best solution out there for a house in Florida?
Cheers, Juan |
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Manfred
Registered Users
Posts:58
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| 10/01/2008 6:16 PM |
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If you use an old world stucco application I suggest to add an elastomeric paint to the final coat of stucco. Elastomeric paint has a strech memory and can bridge gaps of up to 1/16 of an inch. I then would apply another "paint" coat over top of the stucco for final water proofing.
There are many synthetic products on the market - some are better than others. You can apply them with the end color introduced into the final coat application (there are 1 step and 2 step systems). I would still add a coat of elastomeric poain to the outside. Added insurance!!
Finally there is a geo-polymer product available called gigacrete. It is a product in a class of its own. Read up on it by going to gigacrete.com.
Regardless of what system you use I would use an elastomeric coat of paint on top of any type of stucco used. Elastomeric paints not only bridge gaps but also penetrate the underlying substrate for better adhesion and water proofing purposes. Microscopic tenticles penetrate into the product (in this case stucco) in a minute fashion and therfore are able to expell rain droplets. The cover though remains semi-permeable meaning water vapor inside the product is able to travel to the outside. No spalling through UV rays. Product longevity is as long as 10-15 years.
Hope this helps.
Manfred |
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lkazanov2
Registered Users
Posts:112
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| 10/01/2008 6:23 PM |
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Juan,
We have looked at Permacrete, Grail Coat, Stocoat. Permacrete is basically a cementious product that is applied over a wire mesh (screw this in with windloks to the platic webs). Ultimately we have decided to go with a full brick veneer. |
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Vermonter
Registered Users
Posts:49
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| 10/01/2008 11:17 PM |
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| 9200 square feet?! |
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ErVikingo
Registered Users
Posts:5
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| 10/02/2008 9:43 AM |
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| 6000 interior (under HVAC) + 3200 (mostly garage/workshop space). Full concrete envelope (including all roofs), solar H2O and pool heaters, PGT Winguard low-e windows, xeriscape and provisions for future photovoltaics (if they ever come down in price). |
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CFL-ICF
Registered Users
Posts:61
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| 10/02/2008 11:20 AM |
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| ErVikingo ..... I sent you a private message. |
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| You are not authorized to post a reply. |
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