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Site-Built Ventilation Baffles for Roofs
If you want sturdy baffles that create deep ventilation channels, you’ll probably have to make your own
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Fixing Attics With Vermiculite Insulation
In an older house, 8 inches of attic insulation is sometimes much, much worse than no insulation at all
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Using a Glycol Ground Loop to Condition Ventilation Air
How much energy can one of these $2,000 systems collect?
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How to Install Rigid Foam on Top of Roof Sheathing
This type of insulated roof assembly limits thermal bridging through rafters
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Walls With Interior Rigid Foam
When remodeling an older home, it sometimes makes sense to install rigid foam on the interior side of exterior walls
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Solar Hot Air Collectors
Does it make sense to install one of these $1,600 gadgets on a south-facing wall?
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A Balanced Ventilation System With a Built-In Heat Pump
A father-and-son team are manufacturing a new ventilation device — a type of ‘magic box’ — called the CERV
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NESEA Conference Highlights
A report from the recent BuildingEnergy 15 conference in Boston
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Ice Dam Basics
How ice dams form, how to prevent ice dams, and what to do if you have an ice dam right now
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Designing for the Future
Inherent in every architectural design is a prediction of future conditions