Building Science

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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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A Builder's Guide to Breathable Indoor Air

The formula for cleaner, healthier indoor air is simple: A tight shell, and... More

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Moisture Detection Tools

Bill Robinson unpacks the Pelican case full of tools he uses to inspect for... 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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Log Cabin Envelope Makeover

Matt Burstein breathed new life into a deteriorating log exterior. More

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Latent Heat, Sensible Heat, and Cooling Loads

How does latent heat differ from sensible heat, and how does it affect the design... 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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Concrete Solutions

The absolute easiest slab-on-grade foundation to insulate is a stem wall ...... More

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The Strength of Wood

A guide to the mechanical properties of wood that engineers use to evaluate it as... More

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