[Equest-users] u factors with NFRC certification or u factors according to european norms

[Berke Çelikel]

Just a small question. I have glazing with its frame which you can see as an
attachment. You can see the overall u factor ( glazing+frame) at the pdf
file. But as you can understand it has certified and calculated according to
the European norms. (The thermal transmission coefficients were figured for
insertion elements and windows (Uw) according to EN 10077-1:2006 and for
curtain wall (Ucw) in compliance with EN 13947:2006.) I mean our
fenestration with u factors, SHGC or visible light transmittance did not
determine, certify  and label in accordance with NFRC 100, 200, and 300. But
we have European norm certifications. In that case I will not allowed to use
the u factor value in the pdf ( which is 1,81 W/m2.K) for the NFRC u factor
value of the  building simulation software (e quest). ?? Is that correct? 

 

In this condition, do I have to use the figures mentioned in table A8.1A/B,
table A8.2 for the proposed design ?? It means my windows are not certified
or labeled and I will use worse u factors for the simulation but they are
produced according to the European norms and we can see these information
from the manufacturer specification. I have checked CIR section of the LEED
online and I have seen a similar problem happened for the Japan
norms.(fenestration has certified according to the Japan standards and LEED
accepted that case)

Comments ????

 

 

 

 

Regards 

 

 

 

Yük.Müh.Berke Çelikel

Lis.Mak.Müh/Yük.Lis.End.Müh.(Müh.Yön.)

BSc.Mech. Eng./MSc.Ind.Eng.(Eng. Man.)

     

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