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Solar-powered LED lights installed inside this sun tunnel (or solar tube) provides light at night alongside daylight provided by the sun tunnel during the day, thus reducing the need for electric light.

Solar-powered LED lights installed inside this sun tunnel (or solar tube) provides light at night alongside daylight provided by the sun tunnel during the day, thus reducing the need for electric light.
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Strips of roofing membrane are used to flash around a skylight on a flat roof retrofit

Strips of roofing membrane are used to flash around a skylight on a flat roof retrofit
Presentation:

Stump the Building Chump – Joe Lstiburek

Stump the Building Chump – Joe Lstiburek
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Sun tunnels bring daylight into the home, reducing electricity use.

Sun tunnels bring daylight into the home, reducing electricity use.
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Sun tunnels fill the room with sunlight so that electric light is unnecessary.

Sun tunnels fill the room with sunlight so that electric light is unnecessary.
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Table of Maximum Fenestration U-Factor Requirements for New Homes as Listed in the 2009-2021 IECC and IRC

Table of Maximum Fenestration U-Factor Requirements for New Homes as Listed in the 2009-2021 IECC and IRC
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The DOE Efficient Window Coverings website identifies twelve categories of interior window shading attachments.

The DOE Efficient Window Coverings website identifies twelve categories of interior window shading attachments.
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The Efficient Window Coverings website allows direct comparison of various window attachment types based on thermal, visual, functional, and installation and durability criteria.

The Efficient Window Coverings website allows direct comparison of various window attachment types based on thermal, visual, functional, and installation and durability criteria.
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The mechanical curb for a skylight is integrated with the water management and air control layers on a flat roof retrofitted to include new above-deck rigid foam insulation

The mechanical curb for a skylight is integrated with the water management and air control layers on a flat roof retrofitted to include new above-deck rigid foam insulation
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This room has several passive and low-energy cooling features including a ceiling fan, fully operable French doors, window shading, an outdoor water feature, and light-colored hard-scaping.

This room has several passive and low-energy cooling features including a ceiling fan, fully operable French doors, window shading, an outdoor water feature, and light-colored hard-scaping.
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This sun tunnel (or solar tube) has a night light feature that is powered by a small solar panel on the roof.

This sun tunnel (or solar tube) has a night light feature that is powered by a small solar panel on the roof.
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Variable-speed pool pumps can cut energy use by 50% to 90% compared to standard single-speed pumps

Variable-speed pool pumps can cut energy use by 50% to 90% compared to standard single-speed pumps
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Variable-speed pump with low head loss filter and piping layout

Variable-speed pump with low head loss filter and piping layout
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Water management details at a mechanical curb for a skylight

Water management details at a mechanical curb for a skylight
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Water stains on the framing indicate water infiltration at the skylight

Water stains on the framing indicate water infiltration at the skylight
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Wrong – Insulation is misaligned with air barrier

Wrong – Insulation is misaligned with air barrier
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Wrong – Rigid air barrier not installed to hold insulation in place

Wrong – Rigid air barrier not installed to hold insulation in place
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Wrong – Rigid air barrier not properly sealed around skylight shaft

Wrong – Rigid air barrier not properly sealed around skylight shaft