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Dedicated to educating designers, trades and consumers in the fundamentals of building science.

Thank you to my American friends

by Greg on November 19, 2020November 19, 2020
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Are you using windows to heat your house?

by Greg on November 14, 2020November 17, 2020
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Better airtightness – A builder’s choice.

by Greg on October 13, 2020October 13, 2020
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What’s behind your return air grille?

by Greg on September 22, 2020September 23, 2020

Behind the filter where you would expect to find a duct, you will actually find the inside of the wall.

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Why air seal both sides of the insulation?

by Greg on September 10, 2020September 10, 2020
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Ventilation for moisture management

by Greg on September 8, 2020September 8, 2020

Do I Need continuous ventilation?
Do you need to continuously breathe?
Here’s a hint. The answer to both questions is the same.

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House Star Ratings

by Greg on September 7, 2020September 7, 2020
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Do I need continuous ventilation?

by Greg on August 25, 2020August 25, 2020

Do I Need continuous ventilation?
Do you need to continuously breathe?
Here’s a hint. The answer to both questions is the same.

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Breathing through a window?

by Greg on August 18, 2020August 18, 2020

Opening a window when the room feels stuffy is like having a drink when you are dehydrated……… Too late, the damage is done.

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