Roof and attic
Your roof and attic play the most crucial role in your home's energy efficiency system, reducing your energy costs during the winter and summer.
Air quality and ventilation in new homes
New, energy-efficient homes need new solutions to circulate and ventilate the air inside the home.
In newer homes, energy-efficient building practices are used to avoid drafts, but these air tight homes can result in uncomfortable air quality and ventilation.
See our Air Quality section for more information.
In this video: An industry expert discusses green technologies that improve air quality in new construction.
More from this category
Structural insulated panels
Structural insulated panels, also called SIPs, foam-core panels or stress-skin panels, are significantly more airtight than stud walls.
Turning a barn into an energy-smart home
Insulated concrete forms
An insulated concrete form (ICF) system eliminates the cold drafts typical of wood-frame construction.
Finding an energy-smart builder
An energy-smart builder will help you make the right choices for your family and lifestyle.
Building an energy-smart house
Net Zero Community
Check out a new neighborhood concept and see how one builder is changing the way homes are built with a goal to use zero energy.
Modular homes
Modular homes are built in a factory under controlled conditions, then shipped to the homesite and placed on a permanent foundation.
Historic preservation
A preservation expert shares how to restore an older home economically and energy efficiently.