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This home bears a DOE Zero Energy Ready Home label on its front window next to the ENERGY STAR window label.

This home bears a DOE Zero Energy Ready Home label on its front window next to the ENERGY STAR window label.
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This hot climate zone home uses high quality batt insulation to insulate truss-joist headers.

This hot climate zone home uses high quality batt insulation to insulate truss-joist headers.
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This metal shutter has top and bottom tracks that are permanently anchored to the wall (FEMA 577).

This metal shutter has top and bottom tracks that are permanently anchored to the wall (FEMA 577).
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This overhang for a south-facing window provides full shade in the summer and full sun in the winter, optimizing savings in both cooling and heating energy (results shown for 2pm in both summer and winter, 36N latitude).

This overhang for a south-facing window provides full shade in the summer and full sun in the winter, optimizing savings in both cooling and heating energy (results shown for 2pm in both summer and winter, 36N latitude).
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This simple decision tree can help homeowners and contractors determine options about wall and window upgrades when re-siding a home

This simple decision tree can help homeowners and contractors determine options about wall and window upgrades when re-siding a home
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This simple decision tree can help homeowners and contractors make decisions about re-siding a home and upgrading windows

This simple decision tree can help homeowners and contractors make decisions about re-siding a home and upgrading windows
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This simple decision tree can help homeowners and contractors make decisions about wall and window upgrades when re-siding a home

This simple decision tree can help homeowners and contractors make decisions about wall and window upgrades when re-siding a home
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This thermal image of an interior storm window shows how much temperature change occurs between the interior storm window panel on the right, at 50F and the existing glass on left at approximately 0F

This thermal image of an interior storm window shows how much temperature change occurs between the interior storm window panel on the right, at 50F and the existing glass on left at approximately 0F
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This window header has been insulated with rigid foam and air sealed with house wrap tape and all wood-to-wood joints are caulked.

This window header has been insulated with rigid foam and air sealed with house wrap tape and all wood-to-wood joints are caulked.
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This window is properly flashed, with pan flashing, then side (jamb) flashing over the window flanges, flashing across the top, and then the house wrap flap folded down before head flashing is added.

This window is properly flashed, with pan flashing, then side (jamb) flashing over the window flanges, flashing across the top, and then the house wrap flap folded down before head flashing is added.
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To get an average whole-wall R value of R-19 with double-pane windows, you’d need R-330 of wall insulation; triple-pane windows can achieve an R-19 total wall R Value with R-38 of insulation

To get an average whole-wall R value of R-19 with double-pane windows, you’d need R-330 of wall insulation; triple-pane windows can achieve an R-19 total wall R Value with R-38 of insulation
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Traditional and advanced framing of windows and doors

Traditional and advanced framing of windows and doors
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Triple-pane windows are highly insulating (U=0.18) to slow heat transfer while letting in plenty of sunlight.

Triple-pane windows are highly insulating (U=0.18) to slow heat transfer while letting in plenty of sunlight.
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Triple-Pane windows can be used as a tradeoff for continuous wall insulation or stricter air sealing targets when showing compliance with the 2021 IECC using the UA path

Triple-Pane windows can be used as a tradeoff for continuous wall insulation or stricter air sealing targets when showing compliance with the 2021 IECC using the UA path
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Triple-pane windows use three panes of glass separated by gaps filled with krypton or argon gas, insulated spacers, and low-emissivity coatings to achieve high insulation performance

Triple-pane windows use three panes of glass separated by gaps filled with krypton or argon gas, insulated spacers, and low-emissivity coatings to achieve high insulation performance
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Types of window attachments include exterior attachments such as storm windows, fixed awnings, dynamic awnings, roller shutters, roller shades, and solar screens, and interior attachments such as drapes, louvered blinds, roller shades, surface applied fil

Types of window attachments include exterior attachments such as storm windows, fixed awnings, dynamic awnings, roller shutters, roller shades, and solar screens, and interior attachments such as drapes, louvered blinds, roller shades, surface applied films, cellular shades, and window quilts.
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Typically, you will remove the glass panels from the frame before installation; check the manufacturer’s instructions.

Typically, you will remove the glass panels from the frame before installation; check the manufacturer’s instructions.
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Ultra-efficient, R-9, triple-pane windows have insulated wood frames, argon gas between the panes, and low-emissivity coatings to slow heat transfer.

Ultra-efficient, R-9, triple-pane windows have insulated wood frames, argon gas between the panes, and low-emissivity coatings to slow heat transfer.
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Use a pry bar or dull putty knife to push backer rod into the rough opening around an existing window

Use a pry bar or dull putty knife to push backer rod into the rough opening around an existing window
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Use pry bars to remove the trim around an existing window to access the rough opening

Use pry bars to remove the trim around an existing window to access the rough opening
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Using a drill bit slightly smaller than the screw, drill pilot holes at marks indicating the placement of the mounting bracket.

Using a drill bit slightly smaller than the screw, drill pilot holes at marks indicating the placement of the mounting bracket.
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Version 3.0: Exhibit 1 ENERGY STAR Reference Design Home - Windows (Revision 9)

Version 3.0: Exhibit 1 ENERGY STAR Reference Design Home - Windows (Revision 9)
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Version 3.1: Exhibit 1 ENERGY STAR Reference Design Home - Windows (Revision 9)

Version 3.1: Exhibit 1 ENERGY STAR Reference Design Home - Windows (Revision 9)
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Vertical side-shading, such as these side fins, can provide effective summertime shading for north-facing windows, but are generally not recommended for other orientations due to their marginal performance and restricted views

Vertical side-shading, such as these side fins, can provide effective summertime shading for north-facing windows, but are generally not recommended for other orientations due to their marginal performance and restricted views as compared to horizontal shading devices.