GBA Logo horizontal Facebook LinkedIn Email Pinterest Twitter Instagram YouTube Icon Navigation Search Icon Main Search Icon Video Play Icon Audio Play Icon Headphones Icon Plus Icon Minus Icon Check Icon Print Icon Picture icon Single Arrow Icon Double Arrow Icon Hamburger Icon TV Icon Close Icon Sorted Hamburger/Search Icon

Spray Foam Insulation

  • Building Science

    Spray Foam Insulated Homes Need Ventilation

    Most installations of spray foam insulation, when properly installed, act as an air barrier. When you use it instead of the fluffy stuff (fiberglass, cellulose, cotton), a house will be…

  • Building Science

    Does Open-Cell Spray Foam Really Rot Roofs?

    Murmurs and hearsay about open-cell spray foam insulation have been gaining traction for a while. It rots roofs, people have told me. Not long ago, someone even told me that…

  • Musings of an Energy Nerd

    Thermal Barriers and Ignition Barriers for Spray Foam

    Do building codes require spray foam insulation to be protected with a layer of drywall or a comparable barrier for fire safety? There is no simple answer to the question,…

  • Musings of an Energy Nerd

    Open-Cell Spray Foam and Damp Roof Sheathing

    UPDATED on July 8, 2015 Now that insulation contractors have been installing spray foam insulation on the underside of roof sheathing for several years, we’re beginning to accumulate anecdotes and…

  • Green Building Curmudgeon

    Sticking With Spray Foam for My Renovation

    Over the past dozen or so years my opinion on spray foam insulation has evolved from being a strong advocate to being slightly skeptical. I have come to the conclusion…

  • Guest Blogs

    Air Leaks in Homes Insulated With Spray Foam

    If you’re retrofitting a vintage brick building without an air barrier, don’t count on the spray foam to create a perfect air seal. If you plan to use the spray…

  • Building Science

    Spray Foam Insulation Is Not a Cure-All

    Spray foam insulation is a great product. Homes insulated with it can be some of the most efficient and comfortable homes built. I've been in plenty of homes insulated with…

  • Guest Blogs

    Spray Foam in Cold Climates

    Spray foam is a great tool for insulating and weatherizing. It can be applied to horizontal and vertical surfaces. Once it is cured, it can be the air barrier and…

  • Green Building Curmudgeon

    Spray Foam Insulation Is Not a Magic Bullet

    In case you haven’t noticed, I’ve been pretty hard on batt insulation in the past. I feel that my complaints and concerns are well justified, but no matter which insulation…

  • Building Science

    Joe Lstiburek on Spray Foam

    Spray foam insulation evokes some interesting conversation among building scientists, construction professionals, environmentalists, and homeowners who have it in their homes. Many think it solves all problems, no matter how…