Vapor barriers & ventilation
An energy-tight home requires adequate ventilation and vapor control to maintain healthy air.
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.
Funky foam
In this video: Watch as our host, Megan Turner, takes on the challenging of applying spray foam to the walls of a house under construction. You’ll learn the energy-saving benefits of this funky foam.
Why choose spray foam?
In this video: Learn about the benefits, the costs and other alternative ways to use this type of insulation.
More from this category
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.
Basements and crawlspaces
Insulating your new house's basement up to R-10 can help reduce energy costs by up to 12 percent.
Finding and sealing air leaks
Insulation options
The right insulation material for your home depends on where it will be used and what type you already have.
