Insulation, Air Sealing

Thermal Bridging: A Podcast About BS (#buildingscience)

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This is the first episode of 7 Minutes of BS (building science). We break it down with engineers and building scientists.

Superinsulated Sunroom (3): Flashing an Outie Window

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Wide tape spans the many layers of a thick wall to make an air tight and water tight seal

Superinsulated Sunroom (2): Nail Bucks for (Outie) Flanged Windows

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Window banks need to line up neatly for the trim to work out. Foam walls add the extra possibility of compressing the backing. So there's that.

 

Warm and Dry Monolithic Slab with Brick Ledge

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Adding brick to the outside of a house complicates insulating outside a slab. So Insulate inside.

Superinsulated Sunroom (1): Exterior Foam Layer

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A superinsulated sunroom might sound like an oxymoronic idea, but it is not. Just use triple glazed windows and thick foam over the wall framing and roof

Innie Window Installation On an Exterior Foam Retrofit

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A deep energy retrofit in Concord, MA illustrates everything you need to know to bring a house to energy überville

Slab Edge Insulation: Why it Matters

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You can't stop heat flow, but you can keep your floor from becoming a big ol' heat sink

Installing an In-Betweenie Window (1): Sill Pan Flashing

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Flashing an In-Betweenie window is a lot like flashing an Innie or an Outie, only it is somewhere in between

The What, Why, Where, and How of Blower Door Testing

John Straube is excited about blower doors!

Everything there is to know (well, almost) about blower door testing with a few engineer-y jokes along the way.

Frost-Protected Monolithic Slab

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An affordable insulated slab foundation suitable for climate zones 4, 5, and 6

How Deep is Deep Enough to Bury Ducts?

Turns out, ducts buried under insulation actually can work to save energy and eliminate condensation inside the ducts. If you seal and insulate them first

 

How to Install Cellulose Insulation in an Attic—Alone

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Blowing a thick bed of insulation into an attic is really a two-person job, but you can do it by yourself if you have to