Optics5 Issues for Laminates and Applied Films

Last update: 02/09/2007 05:01 PM

Laminates

# Issue Description/Resolution Who
1 Missing DuPont interlayers These interlayers were submitted as laminates (for IGDB 15.0) that cannot be de-constructed by Optics5 to produce interlayers, so they are not in the Optics5 list of interlayers.

Glazing Type

ID

Filename

Product Name

Laminate 1100

15PVB6.DUP

Butacite® NC010
Laminate 1101 30PVB6.DUP Butacite® NC010
Laminate 1102 60PVB6.DUP Butacite® NC010

Laminate

1107

60SGP6.DUP

SentryGlas® Plus

Laminate

1109

30SGP6.DUP

SentryGlas® Plus

Laminate

1113

90PVB6.DUP

Butacite® NC010

Laminate

1114

100SGP6.DUP

SentryGlas® Plus

Laminate

1115

90SGP6.DUP

SentryGlas® Plus

Laminate

1116

SFTWHTE6.DUP

Butacite®

DuPont is in the process of resubmitting their data to LBNL and the IGDB.

DuPont

LBNL

2 Generic 3 mm / 6 mm clear / bronze glass Can you use generic clear and bronze 3 mm and 6 mm glass for laminates for SHGC calculations ?

We think yes, but need to verify this with NFRC

NFRC

Procedures addendum?

3 3 layers of 30 mil clear vs
2 layers of 30/60 mil clear vs
1 layers of 90 mil clear
Will all these combinations of interlayers (from the same manufacturer) which result in the same overall interlayer thickness, result in the same optical properties assuming the same substrates on either side of the interlayers?

LBNL to determine this and report back.

LBNL
4 Naming convention for multiple interlayers that are the same proposal is to say "number of layer" with "x", such as "3x030cl3_0.soi" for 3 layers of interlayer "030cl3_0.soi". NFRC

Procedures addendum?

5 Naming convention for layers that are flipped add an "F" to the end of any layer that is flipped such as:

2026F/015_8050soi/015_8250.soi/9801.usr

NFRC

Procedures addendum?

6 Maximum number of interlayers Optics5 will allow 30 interlayers, but manufacturers (such as Solutia) recommend no more than 4. LBNL

Knowledge Base

7 Editing laminates that are in the IGDB It is possible to edit some laminates that are in the IGDB (this depends on how the manufacturer submitted the data, ie, did they provide enough information for Optics5 to deconstruct the layers).

However, LBNL recommends that rather than editing an existing laminate in the IGDB, that the new laminate is constructed from "scratch".

LBNL to determine if this is an issue by comparing the results of both methods.

LBNL

Knowledge Base

8 Nominal vs real thickness in WINDOW5 Glass Library There is a minor but potentially confusing bug in WINDOW 5 as follows:
  • If  "Use nominal glass thickness" is checked ("turned on") in the WINDOW5 File/Preferences
  • Import Glass layer from Optics5 User database
  • List view will at first (right after the import) display the True Thickness
  • If you leave the List view (either going to Detailed view or some other library) and then come back to Glass Library List view, the value will now be displayed as the Nominal Thickness.
LBNL

Knowledge Base

       

Applied Films

# Issue Description/Resolution Who
1 Front / back application of the film does Optics5 know which side should go to the outside, ie, the glue side next to the glass, the exterior/coated side facing out

LBNL to investigate and write up answer on Knowledge Base

LBNL

Knowledge Base

2 Changing the side the applied film is applied to after it is saved can't change it (as far as we can tell so far) LBNL

Knowledge Base

3 Interior/Exterior application of films Applied films in general are designed to be applied to either an exterior or interior glass surface, but not both. Optics5 does not capture that information, so the simulator needs to make sure that the side the applied film is on is appropriate to the application. However, the glass layer with the film can be "Flipped" in WINDOW5, so it might not be an issue that you have to deal with in Optics5. LBNL

Knowledge Base

Error Messages

Error Message Description/Resolution
Error message can be ignored, as the wavelength range of the calcualtion we are interested in is 0.3 - 2.5 microns (or 300 - 2500 nanometers), so this range truncation is within the calculation range we want.