Click a column header to sort results. EX: Click U Factor to group the values in ascending order.
Click U Factor a second time for descending order.
Additional NOTES are available at the bottom of this page.
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|Product Identification||US ENERGY STAR Climate Zones||Energy Ratings||Glass Specifications||Construction Details|
|NFRC CPD||Series||Product||Product Model||S||S C||N C||N||Door ES||U Factor||SHGC||VT||CR||Glass Unit||Glass Pane Type||Glass Coating||Gas Fill||Spacer||Lite Divisions||Door Lite||Frame Construction||Sash Construction||Bottom Rail Height||Sill Type|
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NFRC CPD: National Fenestration Rating Council Certified Product Designation number
U-Factor (or U-Value): The lower the U-factor, the greater a window's resistance to heat flow and the better its insulating value. Units are Btu/(hr•ft2•ºF).
SHGC: Solar Heat Gain Coefficient Total is a unitless number representing the ratio of radiant solar energy passing through/ incident solar radiation. A small SHGC is desirable during summer. This includes the effect of frame and dividers, which have SHGC of almost zero. Shading Coefficient = SHGC / 0.86.
VT: Visible Transmittance of the total fenestration product system is the transmittance across the visible portion of the solar spectrum where sensitivity to each wavelength is weighted by the eye's response. VT is expressed as a dimensionless number from 0 (completely opaque) to 1.0 (completely clear). This value is influenced by the glass selection and by the ratio of glazing and frame area. Vtc high number (Ø.65) means nearly clear view, and low Vt total number means tinted view.
2010S, S/C, N/C, N: These are the ENERGY STAR climate zones for windows manufactured January 1, 2010 through January 1, 2015.
2010 Door ES: This is the ENERGY STAR climate zone for doors manufactured January 1, 2010 through January 1, 2015.
PDL: Performance Divided Lite bars are a divided lite option using one lite of glass; i.e., they are visual divisions in one insulating glass unit rather than separate units which are used for true divided lites.
Combo: Combination storm/screen unit
Ratings for products with obscured or wired glass and/or stained glass shall be deemed to be equivalent to the ratings for clear glass.
Many Kolbe products meet or exceed various ANSI/AAMA/NWWDA 101/I.S.2-97, 101/I.S.2/NAFS-02, Canadian CSA 440-00, AAMA/WDMA/CSA 101/I.S.2/A440-05 reformed ASTM E1886 and E 1996 standards, Florida Statewide Approval system, and the Texas Department of Insurance system, etc. Visit the websites of these organizations:
AAMA | ANSI | ASTM | Canadian CSA | ENERGY STAR USA | ENERGY STAR CANADA | FL Building Code | NFRC | TDI | WDMA