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Use skylights that lower solar heat gain

Tags: Add a floor above, Kitchen or bath addition, New construction, Gable or eave end add-on, Finished attic, Gut rehab, Finished attic, Gut rehab, roofs, cold, Domed Unit Skylights, dry, hot_humid, marine, Metal-Framed Skylights, mixed_humid, Roof Windows

Skylights let in natural light, but they also overheat some rooms.

Because skylights are so popular, appreciating their full impact, both positive and negative, can be a challenge. Counteract overheating with low solar heat gain coefficient(SHGC) The fraction of solar gain admitted through a window, expressed as a number between 0 and 1. (SHGCSolar heat gain coefficient. The fraction of solar gain admitted through a window, expressed as a number between 0 and 1.) glazingWhen referring to windows or doors, the transparent or translucent layer that transmits light. High-performance glazing may include multiple layers of glass or plastic, low-e coatings, and low-conductivity gas fill.. The National FenestrationTechnically, any transparent or translucent material plus any sash, frame, mullion, or divider attached to it, including windows, skylights, glass doors, and curtain walls. Rating Council (NFRC link below) has guidelines for optimum performance for both U-Factors and SHGC.

Green points

LEED for HomesLeadership in Energy and Environmental Design. LEED for Homes is the residential green building program from the United States Green Building Council (USGBC). While this program is primarily designed for and applicable to new home projects, major gut rehabs can qualify. : Up to 3 points for windows whose NFRC ratings substantially exceed Energy StarLabeling system sponsored by the Environmental Protection Agency and the US Department of Energy for labeling the most energy-efficient products on the market; applies to a wide range of products, from computers and office equipment to refrigerators and air conditioners. requirements (EA 4).
NGBSNational Green Building Standard Based on the NAHB Model Green Home Building Guidelines and passed through ANSI. This standard can be applied to both new homes, remodeling projects, and additions. /ICC-700: Meeting Energy Star requirements is mandatory; up to 12 points for windows with enhanced performance (703.3.1).