Vapor barriers & ventilation
An energy-tight home requires adequate ventilation and vapor control to maintain healthy air.
Solar attic fan
Keep your attic properly vented with an attic fan. Learn about a solar operated option.
In this video: Using the power of the sun to operate your attic fan will not only keep you cool, it is a responsible use of resources.
More from this category
Insulation tips & tricks
Weatherizing materials
A typical home will need about $50 in weatherizing materials - and the cost can be paid back in energy savings in just a few weeks.
Weatherizing tips & tricks
Use this checklist to make sure you don't overlook hidden energy wasters in and around your home.
Insulation options
The right insulation material for your home depends on where it will be used and what type you already have.
Basements and crawlspaces
Insulating your new house's basement up to R-10 can help reduce energy costs by up to 12 percent.
Spray foam insulation
Spray foam insulation does a great job of sealing up cracks and crevices, if it's installed properly. Learn more about open-cell spray foam options.
