[Equest-users] Ceramic Insulating Paint Additives

[PKConsulting]

Yes it would help or try external shading devices to stop the solar loads on the walls and windows from penetrating into the occupied conditioned spaces of the building.  This is a passive solar design approach to consider.

Pashalu

On Aug 9, 2011, at 6:33 PM, steinvor at msu.edu wrote:

> Thanks all! Background on the project: Non profit police station in a low budget  neighborhood in a tropical and warm climate. Walls are specified as hollow concrete block only, and compared to a R-13 wall, heat transfer is somewhat higher. I was trying to seek cheap alternatives for this, since there is no budget to add additional insulation layers. I'm guessing filled block would be a better option then.
> 
> Thanks,
> 
> Federico
> 
> Quoting Roselin Osser <Rosie at buildingscience.com>:
> 
>> Federico,
>> 
>> I thought I should share this article about ceramic "insulating" paints from
>> GreenBuildingAdvisor.com.  The author had done significant research pointing
>> to his conclusion that insulating paints are a scam.  Apparently they do not
>> qualify as low-e coatings either.  It's worth reading the comments at the
>> end as well, where various people likely to be associated with the product
>> attempt to argue with Holladay's points but provide no scientific evidence
>> of their claims.
>> 
>> http://www.greenbuildingadvisor.com/blogs/dept/musings/insulating-paint-merc
>> hants-dupe-gullible-homeowners
>> 
>> And this one:
>> 
>> http://www.greenbuildingadvisor.com/blogs/dept/musings/insulating-paint-sale
>> sman-tripped-his-own-product
>> 
>> Hope this helps.
>> 
>> Rosie
>> 
>> Roselin Osser, BEMP, LEED AP
>> Building Science Corporation
>> 30 Forest Street
>> Somerville, MA  02143
>> 978-589-5100 x 5284
>> fax:  978-589-5103
>> 
>> Building Science Corporation
>> Somerville MA  |  Waterloo ON
>> www.buildingscience.com
>> 
>> 
>> -----Original Message-----
>> From: equest-users-bounces at lists.onebuilding.org
>> [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Bishop,
>> Bill
>> Sent: Tuesday, August 09, 2011 9:16 AM
>> To: Sami, Vikram; steinvor at msu.edu; equest-users at lists.onebuilding.org
>> Subject: Re: [Equest-users] Ceramic Insulating Paint Additives
>> 
>> Federico,
>> 
>> I have no experience using ceramic paint additives. This document provides
>> some engineering background, and also concludes that, "the benefit of this
>> product over time on exterior walls... very likely may be small.":
>> 
>> http://www.energy.wsu.edu/documents/AHT_Insuladd%5B1%5D.pdf%20Ceramic-ba
>> sed%20paint%20additive.pdf
>> 
>> You can, however, try modeling this in eQUEST. Using the values discussed in
>> the link, adjust both the absorptance and emissivity of the walls.
>> ABSORPTANCE - CONSTRUCTION is a property of the exterior wall construction.
>> OUTSIDE-EMISS - EXTERIOR WALL is under the Daylighting - Shading - Other tab
>> of each wall surface.
>> 
>> You will probably find that the energy impact is minimal, and therefore not
>> cost-justified. Appendix G only allows for different absorptance
>> (1-reflectance) for white/cool roofs, and does not address emissivity.
>> Therefore, I think you would have to submit a CIR with good supporting
>> documentation to justify using different absorptance and emissivity values
>> for the Proposed and Baseline exterior walls.
>> 
>> Regards,
>> Bill
>> 
>> 
>> -----Original Message-----
>> From: equest-users-bounces at lists.onebuilding.org
>> [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Sami,
>> Vikram
>> Sent: Monday, August 08, 2011 9:56 PM
>> To: steinvor at msu.edu; equest-users at lists.onebuilding.org
>> Subject: Re: [Equest-users] Ceramic Insulating Paint Additives
>> 
>> I'm pretty sure the ceramic additives do not really affect R-value. They
>> affect the emittance of the paint surface (low-e paints use this). As far as
>> I know you cannot account for surface emittance in eQUEST.
>> 
>> I'm not saying that it doesn't work or it doesn't have benefits - however
>> you need to be careful when you mix thermal metaphors. It may be ok to
>> assume an added R-value for this paint, but I doubt it. Its probablye more
>> effective in hot climates than in cool climates - but additional R-value
>> will have more effect in cold climates than in hotter ones. (this is a guess
>> - I haven't done any simulations to support this).
>> 
>> Other simulation programs like E+ or IESVE might be able to simulate
>> emittance better, but I can't speak to that.
>> 
>> Good luck.
>> 
>> -Vikram
>> 
>> ________________________________________
>> From: equest-users-bounces at lists.onebuilding.org
>> [equest-users-bounces at lists.onebuilding.org] On Behalf Of steinvor at msu.edu
>> [steinvor at msu.edu]
>> Sent: Monday, August 08, 2011 7:58 PM
>> To: equest-users at lists.onebuilding.org
>> Subject: [Equest-users] Ceramic Insulating Paint Additives
>> 
>> Hello:
>> 
>> Has anyone tried a simulation with insulating ceramic paint additive?
>> How does USGBC think about this for LEED? How is the R value defined?
>> I appreciate any comment or suggestion about this.
>> 
>> Thanks!
>> 
>> Federico
>> 
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>> 
> 
> 
> 
> Federico Steinvorth
> Master's Student, Construction Management
> School of Planning, Design, and Construction
> Michigan State University
> 
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