Thermal Performance

Features • Product Description • Thermal Performance
Available Sizes •  Installation Instructions

Patio Door 1830mm x 2085mm (approx. 72” x 82”)
– properties will vary with the size of the door

Glass Code*, Low e type and location

Glass Properties

Window Properties

visible

trans.

SHGC

U-value

SHGC

U-value

ER

W/m^2K

Btu/ft^2

W/m^2K

Btu/ft^2
302 HM88+EA2
#3,#5 (Kr)

0.65

0.54

0.89

0.16

0.44

1.23

0.22

4

302 TC88 #3 #5 (Kr)

0.64

0.49

0.86

0.15

0.44

1.20

0.21

2

301 HM88 #5 (Kr)

0.71

0.54

1.13

0.21

0.45

1.41

0.24

0

211 LOF EA2 #3

0.74

0.68

1.70

0.30

0.56

1.83

0.32

-1

The Fine Print:

* Glass Code

  • 1st digit – number of layers of glazing
  • 2nd digit – number of SuperSpacers
  • 3rd digit – number of Low-e coatings and argon gas fills (assumed 90%argon, 10%air)

Doors without SuperSpacer use Bayform’s Thermal Edge. It is a steel spacer that is significantly warmer than an aluminum spacer

The number after the Low e manufacturer’s name shows the location of the Low e coatings – surface #1 is the exterior surface.

Window Properties were determined by FRAMEplus5.1, which incorporates VISION

U-values that conform to ISO 15099 (used in Europe), are typically 10% lower than those stated above and are available on request.
Bold font indicates stocked Low e glass types