Building Envelope

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The Trouble With Attic Kneewalls

When a change of ceiling height or tray ceiling creates a short attic kneewall,... More

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Getting Basements Right

Joe Lstiburek offers a definitive resource on keeping basements warm and dry. More

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Why the Quality of Attic Insulation Installation Matters

To make sure the R-value of sprayed or blown attic insulation meets expectations,... More

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Controlling Humidity in a Spray-foamed Attic

Is installing a small bath fan in a conditioned attic an effective strategy for... More

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On Site With AeroBarrier Connect

In the quest for airtightness, sealing big holes is easy; Matt Risinger has found a product that will find and fix the small ones. More

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Lstiburek on Permanent Wood Foundations

New materials and expertise make it possible to build trouble-free full basements,... More

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Conditioned And Unconditioned Unvented Attics

Joe Lstiburek says that the key to unvented attic and roof assemblies is to... More

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Continuous Insulation: Problems and Solutions

To avoid callbacks when making the move to exterior foam insulation, address water... More

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Stone Wool Insulation

Previously sized for metal studs, the AFB (acoustical fire batt) line from... More

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