Insulation & Air Sealing

Residential Grow Rooms: 7 Minutes of BS

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Extreme heat and humidity can drive moisture deep into framing cavities which can cause mold, rot, and structural damage

Think About Batts When Running Electrical Cable

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Your electrician can make the insulation work better and easier to install

 

Exterior Foam Insulation Retrofit: How To Install Polyiso Panels

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The first layer of foam is mostly an insulation layer; the outer layer is the air barrier and drainage plane. This video is about the first layer.

A Brick Wall Flashing and Insulation Retrofit

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A retrofit solution that works great for a low-skill workforce—like volunteers

How Small a Hole Can A Mouse Squeeze Through?

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Matthias Wandel has a pretty extensive history devising ways to trap mice. The winters are long in Canada, and Matthias seems to have no shortage of mice in his shop.

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

 

Frost-Protected Monolithic Slab

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

A Slick Transition from Foundation Insulation to Wall Sheathing

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Outside insulation is an effective way to keep heat in. The devil is in the details, such as this one

Exterior Insulation Guide: Cold Climate

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Everything* you need to know about adding insulation to the outside of old homes with cold bones

Energy Efficient Framing Guide

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A field-tested collection of videos, articles, and animated details on practical improvements to the framing process that strips out the less-valuable 'advice' often passed on by others.