XPS
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Off-Gassing Worries Upends a Renovation
Conerns about flame retardants in closed-cell foam prompts a change in plans
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Building a Budget-Friendly Unvented Cathedral Roof
To lower the cost of roof insulation, plan ahead
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Persistent Worries About Exterior Rigid Foam
Why do some builders foresee problems for foam-sheathed walls?
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Owens Corning Video Promotes Illegal Insulation Methods
Responding to queries, Owens Corning says “oops” and takes down one of the company's instructional videos
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Does Your Insulation Have Low Embodied Carbon?
Before deciding on what kind of insulation you're going to use, consider it's global warming potential
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Researchers Raise Questions About Rigid Foam Flame Retardant
A flame retardant used in polystyrene insulation can break down into other components whose environmental risks are unknown, researchers say
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When There Are Too Many Insulation Options
A homeowner in Michigan sorts through the choices for a new house, weighing wall thickness as well as insulation type
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What the Pact on HFCs Will Mean for Builders
The phase-out of hydrofluorocarbons will usher in new versions of foam insulation and updated air conditioners and heat pumps — but not in the immediate future
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Thermal Drift of Polyiso and XPS
As these rigid foam products age, their R-value decreases
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Choosing Rigid Foam
Knowing when to use polyisocyanurate, expanded polystyrene, and extruded polystyrene